question stringlengths 56 2.17k | seed_question stringlengths 29 13k | seed_source stringclasses 11
values | response stringlengths 1.05k 171k | code stringlengths 19 10.6k |
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Perpustakaan menyediakan bahan bacaan untuk *n* buku klub. Setiap buku klub membutuhkan sejumlah halaman yang akan dicetak. Perpustakaan memiliki *x* lembar kertas berlapis dua sisi dan *y* lembar kertas berlapis satu sisi. Sebuah lembar berlapis dua sisi dapat mencetak dua halaman, sementara lembar berlapis satu sisi ... | На тренировку по подготовке к соревнованиям по программированию пришли *n* команд. Тренер для каждой команды подобрал тренировку, комплект задач для *i*-й команды занимает *a**i* страниц. В распоряжении тренера есть *x* листов бумаги, у которых обе стороны чистые, и *y* листов, у которых только одна сторона чистая. При... | codeforces | Okay, so I've got this programming problem to solve. Let me try to understand it.
The problem is about a library that needs to print materials for different book clubs. Each book club requires a certain number of pages. The library has two types of paper: double-sided and single-sided. Each double-sided sheet can prin... | n, x, y = map(int, input().split())
p = list(map(int, input().split()))
p.sort()
count = 0
for pages in p:
required_x = (pages + 1) // 2
if x >= required_x:
x -= required_x
count += 1
else:
if y >= pages:
y -= pages
count += 1
print(count) |
**Matriks ukuran `m x m` disebut simetris jika tetap sama saat baris dibalikkan. Anda diberi bilangan bulat `m^2`. Tugas Anda adalah mengatur bilangan bulat `m^2` ini menjadi matriks sehingga setiap bilangan bulat digunakan persis sekali, dan matriks yang dihasilkan simetris. **Jika ada beberapa solusi yang mungkin, ce... | Let's call some square matrix with integer values in its cells palindromic if it doesn't change after the order of rows is reversed and it doesn't change after the order of columns is reversed.
For example, the following matrices are palindromic:
<image>
The following matrices are not palindromic because they change... | codeforces | Okay, I need to solve this problem where I have to determine if a given set of m^2 integers can be arranged into an m x m symmetrical matrix. If possible, I have to output such a matrix, otherwise print "NO".
First, let me understand the problem statement clearly. A symmetrical matrix here is one that remains the sam... | def main():
import sys
input = sys.stdin.read().split()
m = int(input[0])
elements = list(map(int, input[1:]))
elements.sort()
# Check frequency condition
freq = {}
for num in elements:
if num in freq:
freq[num] += 1
else:
freq[num] = 1
is_ev... |
Perincian: Seorang tukang roti memiliki beberapa baking cookie, masing-masing dengan jumlah cookie tertentu. Setiap menit, ia dapat memilih dua baking yang berdekatan dan mentransfer satu cookie dari baking yang memiliki lebih banyak cookie ke baking yang memiliki lebih sedikit cookie. Tujuannya adalah untuk membuat se... | The grass has dried up in Farmer John's pasture due to a drought. After hours of
despair and contemplation, Farmer John comes up with the brilliant idea of
purchasing corn to feed his precious cows.
FJ’s $N$ cows ($1 \leq N \leq 10^5$) are arranged in a line such that the
$i$th cow in line has a hunger level of $h_i$ ... | usaco | Okay, so I've got this programming problem to solve, and I'm a bit stuck but trying to figure it out. Let's see what the problem is about.
The problem says that a baker has several trays with cookies. Each minute, he can pick two adjacent trays and transfer one cookie from the one with more to the one with less, but o... | def main():
import sys
input = sys.stdin.read().split()
ptr = 0
T = int(input[ptr])
ptr += 1
for _ in range(T):
N = int(input[ptr])
ptr += 1
c = list(map(int, input[ptr:ptr+N]))
ptr += N
S = sum(c)
if S % N != 0:
print(-1)
c... |
Mengingat jumlah segmen yang berhenti bekerja secara total dan keadaan angka saat ini, tentukan jumlah minimum yang mungkin dapat ditampilkan dengan mematikan lebih banyak segmen. ** Format Input**: - Garis pertama berisi integer `n` (1 ≤ n ≤ 2000) dan `k` (0 ≤ k ≤ 2000). - Garis berikutnya masing-masing berisi string ... | Denis, after buying flowers and sweets (you will learn about this story in the next task), went to a date with Nastya to ask her to become a couple. Now, they are sitting in the cafe and finally... Denis asks her to be together, but ... Nastya doesn't give any answer.
The poor boy was very upset because of that. He wa... | codeforces | Okay, I need to solve this problem. Let's read it carefully again.
The problem is about a seven-segment display clock that's broken, and each digit's segments might not be working. We have to find the minimal possible number that can be displayed by turning off exactly k more segments. The input gives n digits, each a... | import sys
def main():
n, k = map(int, sys.stdin.readline().split())
digits = [sys.stdin.readline().strip() for _ in range(n)]
# Define the masks for each digit (0-9) as binary strings
digit_masks = [
'1111110', # 0
'0110000', # 1
'1101101', # 2
'1111001', # 3
... |
Desain jalan yang berbeda memiliki dua sistem pemantauan lalu lintas yang berbeda yang menggunakan waktu perjalanan ini untuk membimbing pengemudi. Sayangnya, kedua sistem ini seringkali tidak sepakat tentang rute mana yang optimal. Tugas Anda adalah menemukan rute dari simpang 1 ke simpang N yang meminimalkan total ke... | Problem 2: Dueling GPS's [Brian Dean, 2014]
Farmer John has recently purchased a new car online, but in his haste he
accidentally clicked the "Submit" button twice when selecting extra
features for the car, and as a result the car ended up equipped with two
GPS navigation systems! Even worse, the two systems often ma... | usaco | Okay, I've got this programming problem to solve. Let's read through it carefully.
So, the problem is about finding a route from junction 1 to N that minimizes the total dissatisfaction from two systems. Each road has a primary and secondary time. The dissatisfaction comes when a driver's path includes a road that's n... | import heapq
def dijkstra(graph, start, num_nodes):
dist = [float('inf')] * (num_nodes + 1)
dist[start] = 0
heap = []
heapq.heappush(heap, (0, start))
visited = [False] * (num_nodes + 1)
while heap:
current_dist, u = heapq.heappop(heap)
if visited[u]:
continue
... |
Perencanaan kota: Menghitung biaya total minimum yang diperlukan untuk menghubungkan semua lingkungan dengan jalan. Jika tidak mungkin untuk menghubungkan semua lingkungan dengan jalan. Jika tidak mungkin untuk menghubungkan semua lingkungan di bawah kendala ini, kembalikan \(-1\). **Format input**: * Garis pertama ber... | Problem 1: Watering the Fields [Brian Dean, 2014]
Due to a lack of rain, Farmer John wants to build an irrigation system to
send water between his N fields (1 <= N <= 2000).
Each field i is described by a distinct point (xi, yi) in the 2D plane,
with 0 <= xi, yi <= 1000. The cost of building a water pipe between two... | usaco | Alright, I've got this programming problem to solve, and I'm a bit nervous because I'm still new to these kinds of problems. Let's see what it's about.
Okay, so the problem is about connecting neighborhoods with roads. Each neighborhood is a point on a 2D plane. The cost of building a road between two neighborhoods is... | class DSU:
def __init__(self, size):
self.parent = list(range(size))
self.rank = [0] * size
def find(self, x):
while self.parent[x] != x:
self.parent[x] = self.parent[self.parent[x]] # Path compression
x = self.parent[x]
return x
def union(self, x, ... |
Deskripsi Masalah**: Seorang pengirim barang perlu mengirimkan paket ke sebuah bangunan. Bangunan ini memiliki N lantai, dan pengirim barang mulai dari lantai dasar ( lantai 0). Paket harus dikirim ke lantai tertentu, dan pengirim barang dapat pindah ke lantai mana pun yang paling banyak dua lantai lebih tinggi dari la... | Chef has a new customer and he wants to prepare his order as soon as possible. While preparing, he sees that the mint sauce is finished. He has to run upstairs to get it from other kitchen. Chef is currently on the X^{th} stair. He has to climb all the way up to the Y^{th} stair in minimum number of steps. In one step,... | codechef | Alright, I've got this programming problem to solve. Let's try to figure out what needs to be done here.
So, the problem is about a delivery person who has to go up floors in a building. They start on the 0th floor. The goal is to determine the minimum number of steps required to reach a given target floor N.
The rul... | import sys
def main():
input = sys.stdin.read
data = input().split()
T = int(data[0])
results = []
for i in range(1, T + 1):
N = int(data[i])
if N % 2 == 0:
res = N // 2
else:
res = (N - 1) // 2 + 1
results.append(res)
print('\n'.join(map(... |
Penentuan nilai-nilai mungkin dari `y` ** sehingga hasil dari `y` dan jumlah digitnya sama dengan `m`. ** Format Input**: Garis pertama berisi bilangan bulat `m` (1 ≤ m ≤ 10^9). ** Format Output**: Dalam baris pertama, cetak satu bilangan bulat `k` jumlah nilai yang berbeda dari `y` yang memenuhi syarat. Dalam baris b... | Eighth-grader Vova is on duty today in the class. After classes, he went into the office to wash the board, and found on it the number n. He asked what is this number and the teacher of mathematics Inna Petrovna answered Vova that n is the answer to the arithmetic task for first-graders. In the textbook, a certain posi... | codeforces | <think>
Alright, I need to solve this problem where given a number m, I have to find all possible integers y such that y multiplied by the sum of its digits equals m. Hmm. Let's think about how to approach this.
So the problem statement says that m = y * sum_of_digits(y). My goal is to find all possible y's that satis... | m = int(input())
solutions = set()
for s in range(1, 82): # since sum of digits can't exceed 81
if m % s == 0:
y = m // s
sum_digits = sum(int(d) for d in str(y))
if sum_digits == s:
solutions.add(y)
sorted_solutions = sorted(solutions)
print(len(sorted_solutions))
for y in so... |
Untuk menemukan harta karun yang tersembunyi, para petualang perlu memecahkan teka-teki untuk memutuskan posisi vital untuk dijelajahi. Karena dua angka K dan L, Anda perlu menemukan jumlah pasangan (a, b), sehingga 1<=a<=K dan 1<=b<=L, yang dihitung sebagai persamaan berikut: a*b + a + b = intstr((a) + str(b)). Selain... | Note : This question carries $150$ $points$
There is an outcry in Middle Earth, as the greatest war between Orgs of Dark Lord Sauron and Frodo Baggins is about to begin. To end the war, Frodo decides to destroy the ring in the volcano of Mordor. There are many ships that lead Frodo to Mordor, and he is confused about w... | codechef | Okay, let's tackle this problem. Hmm, the problem says we need to find the number of pairs (a, b) such that a is between 1 and K, and b is between 1 and L. The condition is a*b + a + b equals the integer formed by concatenating a and b as strings.
Wait, the equation is a bit tricky. Let me rewrite it:
a * b + a + b =... | def count_valid_bs(L):
count = 0
d = 1
while True:
b = 10**d -1
if b > L:
break
count +=1
d +=1
return count
def main():
import sys
input = sys.stdin.read().split()
idx = 0
T = int(input[idx])
idx +=1
for _ in range(T):
K = int... |
**Jawa ini dibagi menjadi periode pagi dan malam untuk masing-masing lima hari kerja. **Jawa ini harus terbuka selama setidaknya satu periode ini. Mengingat jam kerja toko-toko yang ada dan keuntungan yang dapat diperoleh Joisino berdasarkan jam kerja yang saling tumpang tindih, tentukan keuntungan maksimum yang dapat ... | Joisino is planning to open a shop in a shopping street.
Each of the five weekdays is divided into two periods, the morning and the evening. For each of those ten periods, a shop must be either open during the whole period, or closed during the whole period. Naturally, a shop must be open during at least one of those ... | atcoder | Okay, I'm trying to solve this programming problem. Let me read through the problem statement carefully and understand what's needed.
So, the problem is about Joisino deciding the opening hours for her store on a new shopping street. There are N existing stores, each with their own business hours over a week. The week... | n = int(input())
stores_masks = []
for _ in range(n):
bits = list(map(int, input().split()))
mask = 0
for i in range(10):
if bits[i] == 1:
mask += (1 << i)
stores_masks.append(mask)
profits = []
for _ in range(n):
profits.append(list(map(int, input().split())))
max_total = -flo... |
Deskripsi Masalah**: Seorang ilmuwan bekerja dengan kisi lab persegi panjang sel, di mana setiap sel dapat kosong (diwakili oleh '.') atau berisi sampel (diwakili oleh 's'). Seorang ilmuwan perlu mengidentifikasi kisi kecil (sebagian persegi panjang) yang mencakup semua sampel. kisi kecil harus menjadi yang terkecil ya... | Innocentius has a problem — his computer monitor has broken. Now some of the pixels are "dead", that is, they are always black. As consequence, Innocentius can't play the usual computer games. He is recently playing the following game with his younger brother Polycarpus.
Innocentius is touch-typing a program that pain... | codeforces | Okay, so I have this problem to solve where I need to find the smallest rectangular subgrid that encloses all the samples ('s') in a given grid. Hmm, let's break it down.
First, I need to read the input. Oh right, the input is an n x m grid. So I'll read n and m from the first line, then read the next n lines which re... | n, m = map(int, input().split())
grid = [list(input().strip()) for _ in range(n)]
min_row = n
max_row = -1
min_col = m
max_col = -1
has_sample = False
for i in range(n):
for j in range(m):
if grid[i][j] == 's':
has_sample = True
min_row = min(min_row, i)
max_row = max(m... |
Alex adalah seorang penggemar kebugaran yang memiliki dua rutinitas latihan, masing-masing dengan urutan latihan yang berbeda. Setiap hari, ia melakukan satu latihan dari setiap rutinitas secara siklus. Jika latihan berbeda pada hari tertentu, ia mencatatnya di jurnalnya. Alex ingin tahu hari di mana latihan berbeda un... | Vasya is a CEO of a big construction company. And as any other big boss he has a spacious, richly furnished office with two crystal chandeliers. To stay motivated Vasya needs the color of light at his office to change every day. That's why he ordered both chandeliers that can change its color cyclically. For example: r... | codeforces | Okay, I've got this programming problem to solve. Let's read through it carefully.
So, Alex has two exercise routines, each with different sequences. Every day, he does one exercise from each, cycling through them. If the two exercises are different, he notes it. We need to find the day when this difference happens fo... | import sys
import math
def extended_gcd(a, b):
if a == 0:
return (b, 0, 1)
else:
g, y, x = extended_gcd(b % a, a)
return (g, x - (b // a) * y, y)
def crt(a1, m1, a2, m2):
g, x, y = extended_gcd(m1, m2)
if (a1 - a2) % g != 0:
return None
lcm = m1 // g * m2
x0 = (... |
Alex mengumpulkan koin dan dia menyukai pola. Dia mempertahankan koleksi nilai koin unik dan menerima berbagai operasi yang terkait dengan koleksinya. Setiap operasi adalah salah satu jenis berikut: 1. `+ v` tambahkan nilai integer non-negatif `v` ke koleksi. Setiap nilai unik. 2. `- v` menghapus nilai integer non-ne... | Today Sonya learned about long integers and invited all her friends to share the fun. Sonya has an initially empty multiset with integers. Friends give her t queries, each of one of the following type:
1. + ai — add non-negative integer ai to the multiset. Note, that she has a multiset, thus there may be many occur... | codeforces | Okay, let's see. I have to solve this programming problem where Alex is managing a collection of unique coin values and various operations are performed on them. The operations include adding, removing, and querying based on a binary pattern. Hmm. The query part seems a bit tricky.
So, for each query of type '? p', I ... | n = int(input())
collection = set()
for _ in range(n):
op = input().split()
if op[0] == '+':
v = int(op[1])
collection.add(v)
elif op[0] == '-':
v = int(op[1])
collection.discard(v)
elif op[0] == '?':
p = op[1]
x = int(p, 2)
print(1 if x in collec... |
Alex ingin membuat urutan berdasarkan pembagi bilangan bulat terkecil. Dia menantang Bob untuk menemukan jumlah pembagi bilangan bulat terkecil dari 1 ke bilangan bulat tertentu Y. Bob memutuskan untuk menulis program untuk memecahkannya secara efisien. Karena bilangan bulat positif Y, temukan jumlah pembagi bilangan b... | Mandark thinks he is better than Dexter. He challenges Dexter to find answer to a mathematics problem he created. Dexter accepts the challenge and decides to write a program for it to reduce manual calculations.
The problem: Let f(x) be the greatest odd divisor of x, where x is a positive integer. You are given a posi... | hackerearth | Okay, so I have this programming problem to solve. Let's read through it carefully.
The problem is about finding the sum of the smallest prime divisors for each integer from 1 to a given Y. Hmm. So for each number in that range, I need to determine its smallest prime divisor and add all those up.
Wait, what's the sma... | import sys
def compute_spf(max_y):
spf = [0] * (max_y + 1)
spf[1] = 1
for i in range(2, max_y + 1):
if spf[i] == 0:
spf[i] = i
for j in range(i*i, max_y + 1, i):
if spf[j] == 0:
spf[j] = i
# Handle cases where spf is still 0 (which sho... |
Deskripsi Masalah**: Alice dan Bob memiliki koleksi buku. Setiap buku memiliki jumlah halaman tertentu dan berat yang tertentu. Alice ingin memilih satu set buku sehingga total bobot dari rasio total halaman menjadi nilai tertentu `r`. Tentukan total bobot maksimum buku yang dipilih. ** Format Input**: - Baris pertama ... | Dima, Inna and Seryozha have gathered in a room. That's right, someone's got to go. To cheer Seryozha up and inspire him to have a walk, Inna decided to cook something.
Dima and Seryozha have n fruits in the fridge. Each fruit has two parameters: the taste and the number of calories. Inna decided to make a fruit sala... | codeforces | Okay, I need to solve this problem. Let's see what the problem says again.
Alice and Bob have books with pages and weight. Alice wants to select some books so that the total weight divided by total pages equals exactly r. And we have to find the maximum possible total weight of such a selection. If it's not possible,... | import sys
def main():
m, r = map(int, sys.stdin.readline().split())
pages = list(map(int, sys.stdin.readline().split()))
weights = list(map(int, sys.stdin.readline().split()))
# Calculate the delta for each book: delta = weight - r * pages
dp = {0: 0} # key: current delta, value: max weight ... |
Alice memainkan permainan dengan urutan bilangan bulat. Dia perlu menemukan jumlah subsekwensi yang jumlahnya persis `k`. Bantu Alice dengan menulis program yang menghitung subsekwensi tersebut. ** Format Input**: - Garis pertama berisi bilangan bulat `t` (1 ≤ t ≤ 1000) jumlah kasus tes. - Garis berikutnya `2 * t` ber... | Luntik came out for a morning stroll and found an array $a$ of length $n$. He calculated the sum $s$ of the elements of the array ($s= \sum_{i=1}^{n} a_i$). Luntik calls a subsequence of the array $a$ nearly full if the sum of the numbers in that subsequence is equal to $s-1$.
Luntik really wants to know the number of... | codeforces | Okay, I have this problem where I need to count the number of subsequences in an array that sum exactly to k. Hmm. Let's think about how to approach this.
So, a subsequence is any sequence that can be derived by deleting some or no elements without changing the order. So, for each element, we have a choice: include it... | t = int(input())
for _ in range(t):
n, k = map(int, input().split())
a = list(map(int, input().split()))
dp = [0] * (k + 1)
dp[0] = 1
for num in a:
for s in range(k, num - 1, -1):
dp[s] += dp[s - num]
print(dp[k]) |
Alice ingin melukis semua blok menggunakan sedikitnya pukulan sikat. Sebuah pukulan sikat bisa horizontal atau vertikal, dan mencakup seluruh tinggi blok atau membentang secara horizontal di beberapa blok pada ketinggian yang sama. Tentukan jumlah minim pukulan sikat yang diperlukan untuk melukis semua blok. ** Format ... | Bizon the Champion isn't just attentive, he also is very hardworking.
Bizon the Champion decided to paint his old fence his favorite color, orange. The fence is represented as *n* vertical planks, put in a row. Adjacent planks have no gap between them. The planks are numbered from the left to the right starting from o... | codeforces | Okay, I'm trying to solve this problem where I need to find the minimum number of brush strokes to paint all the blocks. Let's read the problem carefully.
So, the problem says that each brush stroke can either be horizontal, covering the entire height of a single block, or vertical, which means it extends across multi... | n = int(input())
h = list(map(int, input().split()))
if n == 0:
print(0)
exit()
dp = [0] * n
dp[0] = 1
for i in range(1, n):
j = i
while j > 0 and h[j-1] == h[i]:
j -= 1
option1 = dp[i-1] + 1
if j == 0:
option2 = 1
else:
option2 = dp[j-1] + 1 if j > 0 else 1
dp[... |
Arya ingin memainkan permainan dengan Jon menggunakan beberapa aturan khusus dengan tiga bilangan bulat a, b, dan c. Permainan ini melibatkan menemukan jumlah total koordinat tiga dimensi yang berbeda (x, y, z) sehingga bilangan bulat yang diberikan dapat menghasilkan hasil yang sama ketika diterapkan pada semua koordi... | Jon wants to go in birthday party of Arya. But he is busy in finding solution of crazy equations, so he wants your help to solve this problem. Jon has four integers a, b, c, d now he wants to calculate how many distinct set of x, y, z, w are present such that a + b - x == a + c - y == c + d - z == b + d - w
NOTE : 1... | geeksforgeeks | Okay, I need to solve this problem where I have to find the number of distinct triplets (x, y, z) such that a+x equals b+y equals c+z, and each of x, y, z is between 1 and n inclusive. Let's think about how to approach this.
Hmm, the condition is a + x = b + y = c + z. Let's call this common value K. So for each possi... | def count_trimensional_coordinates(n, a, b, c):
l1 = a + 1
r1 = a + n
l2 = b + 1
r2 = b + n
l3 = c + 1
r3 = c + n
lower = max(l1, l2, l3)
upper = min(r1, r2, r3)
if lower > upper:
return 0
else:
return upper - lower + 1
# Read input
n, a, b, c = map(int, input(... |
Charlie dan Dana memiliki koleksi kartu, masing-masing dengan huruf besar tunggal. Mereka ingin mengeja kata tertentu menggunakan kartu ini. Setiap kartu hanya dapat digunakan sekali. Tentukan apakah kata dapat dibangun dari kartu yang tersedia. **Input Format**: - Garis pertama berisi string W, kata Charlie dan Dana i... | One day alice and bob were playing with their old toys , they had moved all the rakes and drawers to in the pursuit of their childhood toys.
Finally they found bunch of cubes ,with letters and digits written on it ,which they recalled they used to make words from.
They have already come up with a word they would li... | hackerearth | Okay, I need to solve this programming problem. Let's see what the problem is about. So Charlie and Dana want to spell a specific word using their cards. Each card has an uppercase letter, and each can be used only once. The task is to determine if the word can be built from the available cards.
Hmm. So the input is t... | from collections import Counter
def main():
W = input().strip()
m = int(input().strip())
cards = input().split()
word_counts = Counter(W)
card_counts = Counter(cards)
possible = True
for char, count in word_counts.items():
if card_counts[char] < count:
possible... |
Deskripsi Masalah**: Chris dan Dana memainkan permainan strategi nomor. Mereka berdua tahu fungsi `g: {0, 1}^m → R`, yang mengambil `m` argumen biner dan mengembalikan nomor nyata. Awalnya, setiap variabel `y_1, y_2, ..., y_m` ditetapkan menjadi -1. Pada setiap putaran, baik Chris atau Dana dapat mengatur salah satu va... | Allen and Bessie are playing a simple number game. They both know a function f: \{0, 1\}^n → R, i. e. the function takes n binary arguments and returns a real value. At the start of the game, the variables x_1, x_2, ..., x_n are all set to -1. Each round, with equal probability, one of Allen or Bessie gets to make a mo... | codeforces | Okay, so I need to solve this programming problem where I have to compute the expected game value after each round. Let's try to break this down.
The problem says that there's this function g which takes m binary variables and returns a real number. Initially, all variables are set to -1. Each round, Chris or Dana can... | def main():
import sys
input = sys.stdin.read().split()
ptr = 0
m = int(input[ptr])
ptr += 1
s = int(input[ptr])
ptr += 1
size = 1 << m # 2^m
g = list(map(int, input[ptr:ptr+size]))
ptr += size
# Function to compute the average with 6 decimal places
def compute_avg(... |
David sedang mengerjakan proyek baru di mana ia perlu menyiapkan daftar frasa. Setiap frasa dalam proyeknya harus berisi setidaknya dua vokal berbeda. Dia ingin menjaga frasa yang memaksimalkan jumlah total karakter. ** Format Input**: Garis pertama berisi bilangan bulat `n` (1 ≤ n ≤ 100), yang merupakan jumlah frasa. | Andrew often reads articles in his favorite magazine 2Char. The main feature of these articles is that each of them uses at most two distinct letters. Andrew decided to send an article to the magazine, but as he hasn't written any article, he just decided to take a random one from magazine 26Char. However, before sendi... | codeforces | Okay, so I've got this programming problem to solve, and I need to write a Python solution for it. Let's see what the problem is about.
The problem says that David needs to prepare a list of phrases where each phrase contains at most two distinct vowels. He wants to include phrases that maximize the total number of ch... | import itertools
def main():
n = int(input())
phrases = [input().strip() for _ in range(n)]
vowels = 'aeiou'
max_length = 0
# Generate all possible subsets of 1 or 2 vowels
for r in range(1, 3):
for subset in itertools.combinations(vowels, r):
allowed = set(subset)... |
**Problem Description**: Petani Jane memiliki taman dengan N (1 <= N <= 100,000) tanaman yang diatur berturut-turut. Setiap tanaman i memiliki tingkat pertumbuhan G_i (1 <= G_i <= 1,000,000,000) diukur dalam milimeter per hari. **Dia ingin menangkap foto beberapa susekwensi tanaman yang berdekatan untuk ditampilkan dal... | Problem 1: Above the Median [Brian Dean]
Farmer John has lined up his N (1 <= N <= 100,000) cows in a row to measure
their heights; cow i has height H_i (1 <= H_i <= 1,000,000,000)
nanometers--FJ believes in precise measurements! He wants to take a picture
of some contiguous subsequence of the cows to submit to a bovi... | usaco | Okay, so I have this programming problem to solve. Let's see what it's about. The problem says that Farmer Jane has a garden with N plants in a row. Each plant has a growth rate G_i. She wants to take a photo of a contiguous subsequence of these plants, and the photo is valid if the average growth rate is at least Y. I... | def main():
import sys
input = sys.stdin.read
data = input().split()
N = int(data[0])
Y = int(data[1])
G = list(map(int, data[2:2+N]))
# Transform the array
A = [g - Y for g in G]
# Compute prefix sums
prefix = [0] * (N + 1)
for i in range(1, N + 1):
prefix[... |
Description of Problem**: Karena rentang bilangan bulat dari `x` sampai `y` (termasuk), untuk setiap angka, hitunglah representasi heksadecimalnya dan hitunglah jumlah `A`s dalam senar heksadecimal ini. Kembalikan total jumlah `A`s dalam seluruh rentang. ** Format Input**: - Garis pertama berisi integer `N`, jumlah kas... | Understanding $2$'s complement representation is fundamental to learning about Computer Science. It allows us to write negative numbers in binary. The leftmost digit is used as a sign bit. If it is $1$, we have a negative number and it is represented as the two's complement of its absolute value. Let's say you wrote... | hackerrank | Okay, I need to solve this programming problem where I have to count the number of 'A's in the hexadecimal representations of all numbers from x to y inclusive. Let's see how to approach this.
First, let's understand the problem. For each number in the range x to y, convert it to hex, then check how many 'A's are ther... | import sys
def count_a_in_hex_range(x, y):
start = min(x, y)
end = max(x, y)
total = 0
for n in range(start, end + 1):
hex_str = hex(n)[2:] # Get the hex without '0x'
# Convert to uppercase to count 'A's
total += hex_str.upper().count('A')
return total
def main():
impo... |
Description of Problem**: Given a square matrix of size `N x N`, return all the elements of its main-diagonals from top to bottom. **Input Format**: - An integer `N` representing the size of the matrix. - A 2D list `A` representing the square matrix of size `N x N`. **Output Format**: - A list of integers representing ... | Give a N * N square matrix A, return all the elements of its anti-diagonals from top to bottom.
Example 1:
Input:
N = 2
A = [[1, 2],
[3, 4]]
Output:
1 2 3 4
Explanation:
Hence, elements will be returned in the
order {1, 2, 3, 4}.
Example 2:
Input:
N = 3
A = [[1, 2, 3],
[4, 5, 6],
[7, 8, 9]]
Output:... | geeksforgeeks | Okay, I need to solve this programming problem where I have a square matrix of size N x N, and I need to return all the elements of its main diagonals from top to bottom. Hmm, wait, what's the main diagonal here? Oh right, usually the main diagonal is from top-left to bottom-right, but the note in the problem says that... | n = int(input())
a = [list(map(int, input().split())) for _ in range(n)]
result = []
for s in range(2 * n - 1):
i_min = max(0, s - (n - 1))
i_max = min(s, n - 1)
for i in range(i_min, i_max + 1):
j = s - i
result.append(str(a[i][j]))
print(' '.join(result)) |
**Keterangan Masalah**: Mengingat susunan bilangan bulat positif, kembalikan susunan output di mana setiap indeks mewakili jumlah elemen unik yang muncul persis `index` kali dalam susunan input. Jika tidak ada elemen yang muncul `index` kali, letakkan 0 di indeks itu. **Surat Input**: - Satu baris yang berisi bilangan ... | `Description:`
Given an input array (`arr`) of positive integers, the objective is to return an output array where each index represents the amount of times an element appeared (frequency) in the input array.
More specifically, the element at each index of the output array will be an array (bucket) containing intege... | codewars | <think>
Okay, I need to solve this problem where I have to count the frequency of each number in an array and then create an output array where each index represents how many unique elements appear exactly that many times. Hmm, let's think about how to approach this.
So, the first step is to process the input. The inp... | from collections import Counter
def main():
arr = list(map(int, input().split()))
if not arr:
print()
return
freq = Counter(arr)
freq_counts = Counter(freq.values())
n = len(arr)
output = []
for i in range(n + 1):
output.append(str(freq_counts.get(i, 0)))
print('... |
Katakanlah urutan ini harus dilanjutkan sampai jumlahnya melebihi `n`. Tugas Anda adalah untuk menemukan urutan dan kekuatan maksimum 3 yang digunakan. ** Format Input**: - Baris pertama berisi bilangan bulat `t` (1 ≤ t ≤ 500) jumlah kasus tes. - Setiap baris berikutnya `t` berisi bilangan bulat `n` (2 ≤ n ≤ 2 * 10^5)... | Recall that a permutation of length $n$ is an array where each element from $1$ to $n$ occurs exactly once.
For a fixed positive integer $d$, let's define the cost of the permutation $p$ of length $n$ as the number of indices $i$ $(1 \le i < n)$ such that $p_i \cdot d = p_{i + 1}$.
For example, if $d = 3$ and $p = [5... | codeforces | Okay, I have to solve this programming problem. Let's read it carefully.
The problem is: Given an integer n, I need to generate a sequence where each number is a power of 3, starting from 1. The sequence continues until the numbers exceed n. Also, I need to find the maximum power used and print both the power and the ... | t = int(input())
for _ in range(t):
n = int(input())
sequence = [1]
current = 1
max_power = 0
while True:
next_val = current * 3
if next_val > n:
break
sequence.append(next_val)
current = next_val
max_power += 1
print(max_power)
print(' '.j... |
Penjelasan Masalah**: Karena array integer `b` panjang `n` terdiri dari hanya 0s dan 1s, Anda perlu membangun array integer `a` panjang `n` sedemikian rupa sehingga array integer yang dihasilkan `d` adalah maksimum. array integer `d` dibuat dengan menambahkan setiap elemen yang sesuai dari `a` dan `b` tanpa membawa leb... | In the 2022 year, Mike found two binary integers a and b of length n (both of them are written only by digits 0 and 1) that can have leading zeroes. In order not to forget them, he wanted to construct integer d in the following way:
* he creates an integer c as a result of bitwise summing of a and b without transfe... | codeforces | Okay, I need to solve this problem where I have to construct an array 'a' based on a given array 'b' of 0s and 1s. The goal is to maximize another array 'd', which is the sum of corresponding elements of 'a' and 'b' without carrying over. Then, we remove consecutive duplicates in 'd' to get the final result.
Hmm, let ... | t = int(input())
for _ in range(t):
n = int(input())
b = list(map(int, input().split()))
a = [1 if x == 0 else 0 for x in b]
print(' '.join(map(str, a))) |
**Keterangan Masalah**: Karena dua bilangan bulat positif `p` dan `q`, Anda perlu mencari berapa banyak pasangan bilangan bulat positif `a, b) ` yang ada sehingga produk mereka `a * b` = `p` dan bitwise mereka AND `a & b` = `q`. **Format Input**: - Baris pertama dari input berisi dua bilangan bulat `p` dan `q` (1 ≤ q ≤... | Two positive integers a and b have a sum of s and a bitwise XOR of x. How many possible values are there for the ordered pair (a, b)?
-----Input-----
The first line of the input contains two integers s and x (2 ≤ s ≤ 10^12, 0 ≤ x ≤ 10^12), the sum and bitwise xor of the pair of positive integers, respectively.
---... | codeforces | Okay, so I've got this programming problem to solve, and I need to find a Python solution. Let's read the problem statement carefully.
The problem is: Given two positive integers p and q, find how many pairs of positive integers (a, b) exist such that a * b = p and a & b = q. Hmm, interesting. Oh right, the bitwise AN... | import math
def get_divisors(p):
divisors = set()
for i in range(1, int(math.isqrt(p)) + 1):
if p % i == 0:
divisors.add(i)
divisors.add(p // i)
return sorted(divisors)
def count_pairs(p, q):
if p < q:
return 0
divisors = get_divisors(p)
count = 0
fo... |
Penjelasan Masalah**: Jika diberikan dua set bilangan bulat, hitunglah jarak maksimum antara dua titik, satu dari setiap set, dan hasil output. **Format Masukan**: - Garis pertama berisi bilangan bulat `m`, jumlah bilangan bulat dalam set pertama. - Garis kedua berisi bilangan bulat `m`. - Garis ketiga berisi bilangan ... | Example
Input
2
10 10
Output
40.00000000 | aizu | Okay, I have to solve this programming problem. Let's see what the problem is about.
So, the task is to find the maximum distance between any two points, where one point comes from the first set and the other from the second set. Oh right, and then output that maximum distance with 9 decimal places.
Hmm, let me think... | m = int(input())
A = list(map(int, input().split()))
n = int(input())
B = list(map(int, input().split()))
C = A + B
max_val = max(C)
min_val = min(C)
result = max_val - min_val
print("{0:.9f}".format(result)) |
**Bayangkan Anda diberi urutan operasi untuk dilakukan pada string digit biner ('0' dan '1'). Mulailah dengan string kosong dan lakukan operasi `n` berdasarkan urutan yang diberikan. ** Setelah semua operasi, tentukan jumlah '0' dalam string. ** Operasi: - Jika indeks operasi `i` adalah ganjil, tambahkan digit ke strin... | problem
Play by arranging white and black stones on the table. First, place the stones on the left edge of the table. Then place the stones in the second place from the left. Repeat this n times to arrange n stones in a horizontal row. However, when placing a new i-th go stone, replace the go stone on the table accord... | aizu | Okay, I need to solve this programming problem. Let's read the problem carefully.
So, the problem is about performing a series of operations on a binary string. We start with an empty string and perform n operations. After all operations, I have to find the number of '0's in the resulting string.
The operations are b... | n = int(input())
digits = input().split()
result = []
for i in range(n):
d = digits[i]
if (i + 1) % 2 == 1: # Odd index operation
result.append(d)
else: # Even index operation
if not result:
result.append(d)
else:
last = result[-1]
if d == last:... |
Dalam turnamen basket, tim berpartisipasi, dan masing-masing tim memiliki dua jersey: satu untuk pertandingan rumah dan satu untuk pertandingan luar. Warna jersey rumah untuk tim ke-empat diwakili oleh \(i \) \i \), dan warna jersey luar diwakili oleh \(a_i \) (di mana \(h_i \neq a_i \)). Setiap tim memainkan persis sa... | Consider a football tournament where n teams participate. Each team has two football kits: for home games, and for away games. The kit for home games of the i-th team has color xi and the kit for away games of this team has color yi (xi ≠ yi).
In the tournament, each team plays exactly one home game and exactly one aw... | hackerearth | Okay, I need to solve this problem. Let's read the problem statement again carefully.
So, the problem is about a basketball tournament with n teams. Each team has a home and away jersey, different colors. Each pair of teams plays two games: one where the first is home and the other away, and vice versa. For each game,... | import sys
from collections import defaultdict
def main():
n = int(sys.stdin.readline())
h_list = []
a_list = []
for _ in range(n):
h, a = map(int, sys.stdin.readline().split())
h_list.append(h)
a_list.append(a)
h_count = defaultdict(int)
for h in h_list:
h_... |
**Sebuah atlet memenangkan pertandingan melawan atlet lain jika mereka memiliki tingkat stamina yang lebih tinggi dan dapat mencakup semua nilai yang dapat dicakup oleh atlet lain ditambah beberapa nilai lainnya. Jika tidak ada atlet yang dapat sepenuhnya menutupi jarak dan ekstra lainnya, pertandingan berakhir dengan ... | The Siruseri Singing Championship is going to start, and Lavanya wants to figure out the outcome before the tournament even begins! Looking at past tournaments, she realizes that the judges care only about the pitches that the singers can sing in, and so she devises a method through which she can accurately predict the... | codechef | Okay, I've got this programming problem to solve. Let me try to understand it step by step.
The problem is about athletes competing in a championship, and their stamina ranges determine who wins when they compete against each other. Each athlete's stamina is given as a start (S_i) and end (E_i) value. The way they com... | def main():
import sys
input = sys.stdin.read().split()
ptr = 0
T = int(input[ptr])
ptr += 1
for _ in range(T):
N = int(input[ptr])
ptr += 1
ranges = []
for _ in range(N):
S = int(input[ptr])
E = int(input[ptr + 1])
ranges.appen... |
Namun, karena alur kerja pabrik, beberapa tugas harus diselesaikan sebelum yang lain. Jika tugas `A` harus diselesaikan sebelum tugas `B`, maka tugas pada mesin `A` harus diselesaikan sepenuhnya sebelum memulai tugas pada mesin `B`. Untuk meminimalkan total waktu untuk menyelesaikan semua tugas, pabrik dapat mengoperas... | Problem 3: Milk Scheduling [Kalki Seksaria, 2013]
Farmer John's N cows (1 <= N <= 10,000) are conveniently numbered 1..N.
Each cow i takes T(i) units of time to milk. Unfortunately, some cows
must be milked before others, owing to the layout of FJ's barn. If cow A
must be milked before cow B, then FJ needs to compl... | usaco | Okay, I'm trying to solve this programming problem. Let's see what the problem is about.
So, the problem describes a factory with N machines. Each machine takes T(i) time units to complete its task. But there are dependencies: some tasks must be completed before others. I need to compute the minimum time required to c... | import sys
from collections import deque
def main():
input = sys.stdin.read().split()
idx = 0
N = int(input[idx])
idx += 1
M = int(input[idx])
idx += 1
T = []
for _ in range(N):
T.append(int(input[idx]))
idx += 1
adj = [[] for _ in range(N)]
in_degree =... |
Pernyataan Masalah**: Di sebuah negara fiksi, pemerintah mengenakan pajak penjualan atas total penjualan setiap bisnis per tahun. Pajak penjualan diterapkan pada rentang tertentu dari penjualan tahunan, yang disebut slab pajak penjualan. Tabel pajak penjualan untuk tahun berjalan adalah sebagai berikut: - Hingga $100,0... | In India, every individual is charged with income tax on the total income each year. This tax is applied to specific ranges of income, which are called income tax slabs. The slabs of income tax keep changing from year to year. This fiscal year (2020-21), the tax slabs and their respective tax rates are as follows:Total... | codechef | Okay, I need to solve this programming problem where I calculate the net sales after deducting sales tax based on certain slabs. Hmm, let's see. So, the problem gives me a sales amount S, and I have to compute the tax based on different ranges.
First, I should understand the tax slabs correctly. The slabs are progress... | def calculate_net_sales(S):
slabs = [
(100000, 0),
(100000, 5),
(100000, 10),
(100000, 15),
(100000, 20),
(100000, 25),
(None, 30)
]
tax = 0
remaining = S
for max_amount, rate in slabs:
if remaining <= 0:
break
if ma... |
Deskripsi Masalah**: Di taman bermain besar, ada anak-anak `n` dan warung makan `m` yang ditempatkan di sepanjang garis lurus. Setiap anak akan selalu pergi ke warung makan terdekat untuk membeli makanan. Jika dua warung sama jaraknya dari anak, anak akan memilih warung makan dengan koordinat yang lebih kecil. Anda per... | Palo Alto is an unusual city because it is an endless coordinate line. It is also known for the office of Lyft Level 5.
Lyft has become so popular so that it is now used by all $m$ taxi drivers in the city, who every day transport the rest of the city residents — $n$ riders.
Each resident (including taxi drivers) of ... | codeforces | Okay, I need to solve this programming problem. Let's read it again to make sure I understand what needs to be done.
So, the problem is about children and food stalls arranged along a straight line. Each child goes to the nearest food stall. If two stalls are equally distant, the child chooses the one with the smaller... | import bisect
n, m = map(int, input().split())
x = list(map(int, input().split()))
f = list(map(int, input().split()))
stalls = [x[i] for i in range(len(f)) if f[i] == 1]
counts = [0] * len(stalls)
for i in range(len(x)):
if f[i] == 0:
x_c = x[i]
pos = bisect.bisect_left(stalls, x_c)
if p... |
**Pernyataan Masalah**: Dalam permainan baru, "Starlight Farm", Anda ingin merencanakan penanaman berbagai tanaman. Setiap tanaman memiliki nama, biaya penanaman, berbagai tahap pertumbuhan, dan hasil. **Anda perlu menghitung keuntungan per hari untuk setiap tanaman dan mengeluarkan nama tanaman yang disortir berdasark... | You are enthusiastic about the popular web game "Moonlight Ranch". The purpose of this game is to grow crops in the fields, sell them to earn income, and use that income to grow the ranch.
You wanted to grow the field quickly. Therefore, we decided to arrange the crops that can be grown in the game based on the income... | aizu | Okay, so I have this programming problem to solve. Let me read the problem statement carefully.
The task is to calculate the profit per day for each crop and then output the names sorted by that profit. If there's a tie, we sort by name in ascending order.
Hmm, the input starts with N, the number of crops. Then each ... | n = int(input())
crops = []
for _ in range(n):
parts = input().split()
name = parts[0]
cost = int(parts[1])
growth_time = int(parts[2])
daily_growth = int(parts[3])
days_to_fruit = int(parts[4])
yield_val = int(parts[5])
sell_price = int(parts[6])
total_harvests = int(parts[7])
... |
******: Di sebuah taman, ada `N` air mancur yang diatur dalam garis, masing-masing dengan air, katakanlah `W[i]` liter. Dua orang, `P1` dan `P2`, mulai mengumpulkan air secara bersamaan. `P1` mulai dari air mancur paling kiri dan mengumpulkan air `Y` kali lebih cepat dari `P2`, yang mulai dari air mancur paling kanan. ... | Chef has $N$ boxes arranged in a line.Each box has some candies in it,say $C[i]$. Chef wants to distribute all the candies between of his friends: $A$ and $B$, in the following way:
$A$ starts eating candies kept in the leftmost box(box at $1$st place) and $B$ starts eating candies kept in the rightmost box(box at $N$... | codechef | Okay, let's try to solve this problem. Hmm, the problem is about two people, P1 and P2, collecting water from fountains arranged in a line. P1 starts from the left, P2 from the right. The speed factor Y makes P1 collect Y times faster than P2. We need to find out how many fountains each collects based on who reaches fi... | def main():
import sys
input = sys.stdin.read().split()
idx = 0
T = int(input[idx])
idx +=1
for _ in range(T):
N = int(input[idx])
idx +=1
W = list(map(int, input[idx:idx+N]))
idx +=N
Y = int(input[idx])
idx +=1
fountains = []
... |
Deskripsi Masalah**: Dalam kisi persegi panjang, jenis pengaturan bangunan baru diwakili oleh kisi di mana setiap sel dapat kosong atau berisi bangunan. Sebuah bangunan hanya dapat dilihat dari luar jika tidak sepenuhnya dikelilingi oleh bangunan lain. Tugas Anda adalah untuk menemukan total perimeter bangunan yang ter... | problem
The JOI building is a combination of regular hexagons with a side of 1 meter as shown in the figure. As Christmas is approaching, JOI decided to decorate the walls of the building with illuminations. However, since it is useless to illuminate the parts that cannot be seen from the outside, we decided to decora... | aizu | Okay, so I need to solve this programming problem where I have to calculate the perimeter of the visible buildings in a grid. Hmm, let's see.
The problem says that a building is visible from the outside if it's not completely surrounded. So the task is to compute the total perimeter of such buildings. So each building... | W, H = map(int, input().split())
grid = [list(map(int, input().split())) for _ in range(H)]
perimeter = 0
directions = [(-1, 0), (1, 0), (0, -1), (0, 1)]
for i in range(H):
for j in range(W):
if grid[i][j] == 1:
for d in directions:
ni = i + d[0]
nj = j + d[1]
... |
** Dalam rumah persegi panjang, pembersih robot dimulai dari posisi tertentu (`R`) dan bertujuan untuk membersihkan semua ruang lantai yang dapat dicapai (`.`). Layout rumah diwakili sebagai grid dengan dinding (`#`) dan lantai (`.`). pembersih dapat bergerak ke empat arah (ke atas, ke bawah, kiri, kanan) dan hanya dap... | Karakuri Doll
Karakuri doll
English text is not available in this practice contest.
After many years of research, Karakuri puppeteer JAG has succeeded in developing a wonderful tea-drawing doll that combines traditional and latest techniques. This tea-drawing doll is placed in a teacup with tea in the kitchen (K) in... | aizu | <think>
Okay, I need to solve this programming problem. Let's see what the problem is about. So, the robotic cleaner is in a grid and needs to clean all the reachable floor spaces. It starts at position 'R', and can only move up, down, left, right into '.' spaces. The goal is to determine whether it can clean all reach... | from collections import deque
import sys
def main():
w, h = map(int, sys.stdin.readline().split())
grid = [list(sys.stdin.readline().strip()) for _ in range(h)]
# Find the starting position of 'R'
start = None
for i in range(h):
for j in range(w):
if grid[i][j] == 'R':
... |
Deskripsi Masalah**: Dalam sebuah perusahaan manajemen acara, ada karyawan `n`, masing-masing ditandai dengan skor efisiensi unik `e_i`. Seorang karyawan `a` dapat mengawasi karyawan lain `b` jika dan hanya jika efisiensi karyawan `a` lebih besar dari efisiensi karyawan `b` (e_a > e_b`) dan karyawan `a` dan `b` tidak m... | In BerSoft $n$ programmers work, the programmer $i$ is characterized by a skill $r_i$.
A programmer $a$ can be a mentor of a programmer $b$ if and only if the skill of the programmer $a$ is strictly greater than the skill of the programmer $b$ $(r_a > r_b)$ and programmers $a$ and $b$ are not in a quarrel.
You are... | codeforces | Okay, I need to solve this programming problem. Let's read the problem statement carefully and think about how to approach it.
So, the problem is about employees and their supervision. Each employee can supervise another if their efficiency is higher and they don't have a conflict. For each employee, I need to find ou... | import bisect
def main():
import sys
input = sys.stdin.read
data = input().split()
idx = 0
n = int(data[idx])
k = int(data[idx + 1])
idx += 2
e = list(map(int, data[idx:idx + n]))
idx += n
conflicts = [[] for _ in range(n)]
for _ in range(k):
x = int(d... |
Deskripsi Masalah**: Dalam permainan kuno Tessellia, dua pemain, Alice dan Bob, bermain dengan dua angka `x` dan `y`. Kesenangan permainan ditentukan oleh LCM (Least Common Multiple) dari `x` dan `y`. Anda dapat mengubah kesenangan dengan melakukan dua jenis operasi: 1. Perkalikan kedua `x` dan `y` dengan 2. Pembagi ke... | Welcome to Rockport City!
It is time for your first ever race in the game against Ronnie. To make the race interesting, you have bet a dollars and Ronnie has bet b dollars. But the fans seem to be disappointed. The excitement of the fans is given by gcd(a,b), where gcd(x, y) denotes the [greatest common divisor (GCD)]... | codeforces | Okay, I've got this problem to solve. Let's try to understand what it's about and how I can approach it.
So the problem says that there are two numbers, x and y, and their LCM determines the excitement of the game. We can perform two operations any number of times: multiply both by 2, or divide both by 2 if they're ev... | def count_factors(n, factor):
count = 0
if n == 0:
return 0
while n % factor == 0:
count += 1
n = n // factor
return count
def main():
import sys
input = sys.stdin.read().split()
t = int(input[0])
idx = 1
for _ in range(t):
x = int(input[idx])
... |
**Keselamatan**: Hari ini adalah hari ulang tahun Jawa. Setiap teman-temannya memberi tahu dia jumlah balon yang paling sedikit yang mereka inginkan. Kemudian, teman-temannya bersama-sama memutuskan bahwa jika dia dapat memenuhi kondisi setidaknya satu teman-temannya, mereka akan membeli hadiah $ 1000. Anda perlu memba... | It is Jawa's birthday today. His each friend tells him the least number of toffees he wants. Later, his friends together decided that if he is able to satisfy the condition of atleast one of his friends than they will buy him a $1000 gift.
You have to help Jawa to decide the minimum number of toffees he need to buy to ... | hackerearth | Okay, so I have this programming problem to solve. Let me read through the question again carefully to make sure I understand it correctly.
The problem is about Jawa's birthday and his friends' balloon requirements. The main goal is to find the minimum number of balloons Jawa needs to buy such that at least one of hi... | def main():
import sys
input = sys.stdin.read().split()
idx = 0
T = int(input[idx])
idx += 1
for _ in range(T):
N = int(input[idx])
idx +=1
friends = list(map(int, input[idx:idx+N]))
idx +=N
total = sum(friends) - N + 1
print(total)
if __n... |
Penulis: Mary berada di rumahnya di tempat asal. Dia memiliki $n$ kemungkinan gerak yang diwakili oleh vektor $\vec{u_1}, \vec{u_2}, \cdots, \vec{u_n}$. Untuk setiap gerak, dia dapat bergerak ke arah $\vec{u_i}$ atau tinggal di posisi saat ini. Karena Mary ingin tetap dalam jarak aman dari $1.2 \cdot 10^6$ dari rumah, ... | For a vector $\vec{v} = (x, y)$, define $|v| = \sqrt{x^2 + y^2}$.
Allen had a bit too much to drink at the bar, which is at the origin. There are $n$ vectors $\vec{v_1}, \vec{v_2}, \cdots, \vec{v_n}$. Allen will make $n$ moves. As Allen's sense of direction is impaired, during the $i$-th move he will either move in th... | codeforces | Okay, so I have this programming problem to solve. Let me read it carefully.
Mary is at home, which is at the origin. She has n possible moves, each represented by a vector. For each move, she can choose to take it or stay. The goal is to determine a sequence of choices (1 or 0 for each move) such that, after all move... | import sys
def main():
n = int(sys.stdin.readline())
S = (1200000) ** 2 # 1.2e6 squared is 1440000000000
x, y = 0, 0
result = []
for _ in range(n):
a, b = map(int, sys.stdin.readline().split())
tentative_x = x + a
tentative_y = y + b
dist_sq = tentative_x ** 2 + t... |
Penulis Neptunus Kuno memutuskan bahwa penghargaan hanya diterima jika berat gabungan dari permata yang disajikan memenuhi kriteria khusus. Secara khusus, jumlah gabungan angka terakhir (dalam sistem nomor dasar tertentu yang digunakan oleh para ahli Neptunus) harus sesuai dengan angka dasar divine `d`. Anda harus mene... | Astronaut Natasha arrived on Mars. She knows that the Martians are very poor aliens. To ensure a better life for the Mars citizens, their emperor decided to take tax from every tourist who visited the planet. Natasha is the inhabitant of Earth, therefore she had to pay the tax to enter the territory of Mars.
There are... | codeforces | Okay, so I've got this programming problem to solve. Let me read it carefully.
The problem says that on Neptune, there are temples where visitors must offer gems. Each type of gem has a specific weight. The homage is accepted only if the combined weight meets a special condition: the last digit (in a certain base b) m... | import sys
import math
def main():
m, b = map(int, sys.stdin.readline().split())
weights = list(map(int, sys.stdin.readline().split()))
if m == 0:
print(0)
print()
return
# Compute the residues modulo b
residues = [w % b for w in weights]
# Compute GCD of ... |
Pada waktu, jaringan akan mengalami serangkaian perubahan: koneksi antara komputer dapat ditambahkan atau dihapus, dan query dapat dibuat untuk memeriksa apakah dua komputer dapat berkomunikasi secara langsung atau tidak langsung. ** Format Input**: - Garis pertama berisi dua bilangan bulat n dan k, di mana 2 ≤ n ≤ 40,... | There are n rabbits, one in each of the huts numbered 0 through n − 1.
At one point, information came to the rabbits that a secret organization would be constructing an underground passage. The underground passage would allow the rabbits to visit other rabbits' huts. I'm happy.
The passages can go in both directions,... | aizu | Okay, I need to solve this programming problem. Let's read the problem statement carefully.
So, the problem is about handling a network of computers connected in some way. We have a series of commands: connect, disconnect, and check. For each check, we output whether the two computers can communicate directly or indir... | import sys
from collections import deque
def main():
n, k = map(int, sys.stdin.readline().split())
adj = [set() for _ in range(n)]
for _ in range(k):
parts = sys.stdin.readline().split()
if not parts:
continue
if parts[0] == "CONNECT":
u = int(parts[1])
... |
Tom berpartisipasi dalam sebuah maraton di sepanjang jalur garis lurus dari titik 0 sampai titik D. Tom berlari dengan kecepatan konstan satu meter per detik. Di sepanjang jalur, ada beberapa stasiun air di mana Tom dapat berhenti untuk minum air. Setiap stasiun air ditandai dengan posisinya di sepanjang jalur dan wakt... | Vasya participates in a ski race along the X axis. The start is at point 0, and the finish is at L, that is, at a distance L meters from the start in the positive direction of the axis. Vasya has been training so hard that he can run one meter in exactly one second.
Besides, there are n take-off ramps on the track, ea... | codeforces | Okay, so I need to solve this programming problem where Tom is running a marathon and can stop at water stations to drink water. The goal is to find the minimum time he can reach the end, considering the time he spends at the stations he chooses to stop. Hmm.
First, let me understand the problem again. Tom starts at 0... | def main():
import sys
m, D = map(int, sys.stdin.readline().split())
stations = []
for idx in range(m):
y, w = map(int, sys.stdin.readline().split())
stations.append((y, w, idx + 1)) # store original index (1-based)
# Sort stations by their position
stations.sort()
... |
Tyler tahu bahwa setiap kode biner memiliki panjang tertentu yang sesuai dengan jumlah digit biner. Berikan bilangan bulat k, mewakili jumlah maksimum item yang berbeda Tyler ingin mengkodekan, tentukan panjang minimum kode biner yang diperlukan untuk mengetik semua item secara unik. ** Format Input:** - Sebuah bilanga... | Problem statement
Meatishi can increase or decrease the number of fingers.
There are n buns in front of Nikunishi-kun.
Meatishi is trying to count the number of steamed buns by breaking his finger.
There are only two shapes that Nishikun's fingers can take, whether they are broken or not.
Nikunishi understands binary ... | aizu | <think>
Okay, let's see. The problem is to find the minimum length of a binary code that can represent k unique items. Hmm, right. So each code is a binary string, and each item has a unique one.
Wait, binary codes, so each digit is 0 or 1. The number of possible codes of length n is 2^n, right? Because each position ... | k = int(input())
if k == 0:
print(0)
else:
print((k - 1).bit_length()) |
Anda dapat melakukan operasi *k* paling banyak. Untuk setiap operasi, Anda dapat menambahkan bilangan bulat tertentu *y* ke salah satu dari jumlah tersebut. Kami ingin memaksimalkan jumlah elemen dalam daftar setelah melakukan operasi *k* paling banyak. ** Format Input**: - Garis pertama berisi tiga bilangan bulat *n*,... | You are given *n* numbers *a*1,<=*a*2,<=...,<=*a**n*. You can perform at most *k* operations. For each operation you can multiply one of the numbers by *x*. We want to make as large as possible, where denotes the bitwise OR.
Find the maximum possible value of after performing at most *k* operations optimally.
Inp... | codeforces | Okay, I need to solve this programming problem. Let's read the problem carefully.
The problem is about performing operations to maximize the sum of a list. Each operation allows me to add a given integer y to one of the numbers in the list, and I can perform at most k operations.
Hmm. So the task is to distribute the... | n, k, y = map(int, input().split())
a = list(map(int, input().split()))
s = sum(a)
print(s + k * y) |
Perumpamaan adalah himpunan ujung sehingga tidak ada dua ujung yang berbagi puncak yang sama. Sebuah himpunan independen adalah himpunan ujung sehingga tidak ada dua puncak yang terhubung oleh ujung. ** Format Input: ** - Baris pertama berisi satu integer `T` (jumlah grafik untuk diproses). ** - Baris pertama deskripsi... | You are given a graph with $3 \cdot n$ vertices and $m$ edges. You are to find a matching of $n$ edges, or an independent set of $n$ vertices.
A set of edges is called a matching if no two edges share an endpoint.
A set of vertices is called an independent set if no two vertices are connected with an edge.
-----Inp... | codeforces | Okay, I need to solve this programming problem. Let me read through the problem statement again carefully.
The problem is about a graph with 4n vertices and p edges. The task is to find either a matching of size n or an independent set of size 2n. If neither exists, output "Impossible".
Hmm, right. Let's think abou... | import sys
def main():
input = sys.stdin.read().split()
ptr = 0
T = int(input[ptr])
ptr += 1
for _ in range(T):
n = int(input[ptr])
ptr += 1
p = int(input[ptr])
ptr += 1
vertices_count = 4 * n
edges = []
for _e in range(p):
u = int... |
Pernyataan Masalah**: Anda diberi daftar karyawan `N` berdiri di baris, masing-masing memegang nomor tugas yang unik. Nomer tugas awalnya diwakili oleh array `T`. Ada putaran `M`, dan dalam setiap putaran `k`, karyawan akan berinteraksi sesuai dengan aturan berikut: - Karyawan pertama menerima sinyal. - Karyawan mengir... | problem
N students from JOI High School are lined up in a row from east to west. The i-th student from the western end of the column is student i. Each student has a bib with one integer. Initially, the integer Ai is written on the number of student i.
There are M batons, and the batons are numbered from 1 to M. For ... | aizu | Okay, so I have this programming problem to solve, and I'm supposed to write a Python solution for it. Let's try to understand the problem properly.
The problem is about employees passing signals in M rounds and swapping their task numbers under certain conditions. Each round is denoted by k, starting from 1 to M. Eac... | n, m = map(int, input().split())
t = [int(input()) for _ in range(n)]
for k in range(1, m + 1):
for i in range(n - 1):
if t[i] % k > t[i+1] % k:
t[i], t[i+1] = t[i+1], t[i]
for number in t:
print(number) |
Deskripsi Masalah**: Anda diberikan daftar bilangan bulat positif. Define elemen `X` sebagai unik jika tidak ada elemen lain dalam daftar yang memiliki jumlah pembagi yang sama dengan `X`. ** Implementasikan fungsi yang mengembalikan semua elemen unik dari daftar berdasarkan definisi ini. **Input Format**: - Jalur pert... | Recently you invented a brand-new definition of prime numbers. For a given set of positive integers S let's call X a prime if there are no elements in S which are divisors of X (except X itself).
You are given a set S. Find elements in it which are prime numbers for this set.
Input
The first line contains one intege... | hackerearth | Okay, I need to solve this problem where I have to find all unique elements in a list based on the number of divisors they have. The definition is that an element X is unique if no other element in the list has the same number of divisors as X. So, my task is to go through the list, for each element calculate the numbe... | def count_divisors(x):
if x == 1:
return 1
count = 1
i = 2
while i * i <= x:
exponent = 0
while x % i == 0:
exponent += 1
x = x // i
if exponent > 0:
count *= (exponent + 1)
i += 1
if x > 1:
count *= 2
return cou... |
Deskripsi Masalah**: Anda diberikan daftar skor untuk serangkaian kompetisi. Instruktur Anda memutuskan untuk menghitung skor akhir Anda dengan menurunkan skor terendah Anda dan kemudian menyusuri skor yang tersisa. Namun, Anda terlambat untuk kompetisi pertama `P`, sehingga skor tersebut tidak tersedia untuk penilaian... | In your bovine history class, you have been given a rather long homework
assignment with $N$ questions ($3 \leq N \leq 100,000$), each graded with an
integer score in the range 0...10,000. As is often customary, your teacher
plans to assign a final grade by discarding a question on which you received the
lowest score ... | usaco | Okay, I need to solve this programming problem. Let's read it carefully.
The problem is about finding the optimal number of competitions P that were missed, such that when you drop the lowest P scores (assuming they are missed), and then average the remaining after dropping the lowest one, we get the highest possible ... | M = int(input())
scores = list(map(int, input().split()))
sum_suffix = [0] * M
min_suffix = [0] * M
sum_suffix[-1] = scores[-1]
min_suffix[-1] = scores[-1]
for i in range(M-2, -1, -1):
sum_suffix[i] = sum_suffix[i+1] + scores[i]
min_suffix[i] = min(scores[i], min_suffix[i+1])
max_avg = -1
best_P = []
for P... |
Katakanlah bahwa pohon node `m`, Anda diminta untuk menemukan waktu yang dibutuhkan untuk membakar seluruh pohon mulai dari berbagai node. ** Format input**: - Garis pertama berisi bilangan bulat `m` (2 ≤ m ≤ 300,000) ukuran pohon. - Garis kedua berisi bilangan bulat `m - 1 ` bilangan bulat `p2, p3, ..., pm (1 ≤ pi ≤ ... | After the piece of a devilish mirror hit the Kay's eye, he is no longer interested in the beauty of the roses. Now he likes to watch snowflakes.
Once upon a time, he found a huge snowflake that has a form of the tree (connected acyclic graph) consisting of n nodes. The root of tree has index 1. Kay is very interested ... | codeforces | <think>
Okay, I need to solve this problem where I have a tree and multiple queries, each asking for the time it takes for the entire tree to burn when the fire starts at a particular node. Let's think about how to approach this.
So, the fire spreads to neighboring nodes each step. The burning time is the maximum dist... | import sys
from collections import deque
def main():
input = sys.stdin.read().split()
ptr = 0
m = int(input[ptr])
ptr += 1
if m == 1:
# Only root node, but m >=2 per problem statement
pass
else:
p = list(map(int, input[ptr:ptr + (m - 1)]))
ptr += (m - 1)
#... |
** Untuk setiap karakter dalam string yang dimulai dari karakter pertama, pergeseran satu posisi dalam alfabet (yaitu, 'a' menjadi 'b', 'b' menjadi 'c', ..., 'z' menjadi 'a') tanpa mengubah karakter pada indeks ke-0. ** Format Input**: - Sebuah string non-bakit yang terdiri dari huruf Inggris kecil. ** Format Output**:... | You have given a non-empty string. This string can consist of lowercase and uppercase english alphabets. Convert the string into an alternating sequence of lowercase and uppercase characters without changing the character at the 0th index.
Example 1:
Input:
S = "geeksforgeeks"
Output: gEeKsFoRgEeKs
Explanation: The fir... | geeksforgeeks | Okay, I need to solve this problem where I have to shift each character in a string starting from the first character (i.e., index 1) by one position in the alphabet. The first character (index 0) remains unchanged. Hmm, so for example, 'a' becomes 'b', 'b' becomes 'c', and so on. Oh right, and 'z' wraps around to 'a'.... | s = input().strip()
if not s:
print(s)
else:
s_list = list(s)
for i in range(1, len(s_list)):
c = s_list[i]
if c == 'z':
s_list[i] = 'a'
else:
s_list[i] = chr(ord(c) + 1)
print(''.join(s_list)) |
Deskripsi Masalah**: Anda diberi permutasi bilangan bulat dari 1 ke n. Dalam satu langkah, Anda dapat menukar dua nilai apa pun (tidak harus berdekatan). Tugas Anda adalah menentukan jumlah gerakan minimum yang diperlukan untuk mengurutkan permutasi dalam urutan naik. ** Format Input**: - Garis input pertama berisi sat... | You are given a permutation $p_1, p_2, \ldots, p_n$.
In one move you can swap two adjacent values.
You want to perform a minimum number of moves, such that in the end there will exist a subsegment $1,2,\ldots, k$, in other words in the end there should be an integer $i$, $1 \leq i \leq n-k+1$ such that $p_i = 1, p_{i... | codeforces | Okay, I need to solve this problem where I have to find the minimum number of swaps required to sort a permutation. Hmm, right. The key here is to figure out that the minimum swaps needed are related to the number of cycles in the permutation. Because each cycle contributes (cycle_length - 1) swaps. Let me think throug... | def main():
import sys
n = int(sys.stdin.readline())
p = list(map(int, sys.stdin.readline().split()))
visited = [False] * n
cycle_count = 0
for i in range(n):
if not visited[i]:
cycle_count += 1
current = i
while not visited[current]:
... |
Pernyataan Masalah**: Anda diberikan grid persegi panjang ukuran `n` oleh `m`. Setiap titik di grid memiliki koordinat `(x, y) ` di mana `0 <= x <= n` dan `0 <= y <= m`. Tugas Anda adalah untuk menemukan sub-sekait di grid terbesar yang berisi titik tertentu `(x, y) ` dan memiliki area tertentu `A`. Sisi-sisi dari sub-... | You are given a rectangle grid. That grid's size is *n*<=×<=*m*. Let's denote the coordinate system on the grid. So, each point on the grid will have coordinates — a pair of integers (*x*,<=*y*) (0<=≤<=*x*<=≤<=*n*,<=0<=≤<=*y*<=≤<=*m*).
Your task is to find a maximum sub-rectangle on the grid (*x*1,<=*y*1,<=*x*2,<=*y*2... | codeforces | Okay, I have to solve this programming problem. Let's try to understand it step by step.
So, the problem is about finding the largest sub-rectangle in an n by m grid that contains a specific point (x, y) and has a specified area A. The rectangle's sides have to be parallel to the axes, and the corners should have inte... | import math
def find_rectangle(n, m, x, y, A):
best_rect = None
best_distance_sq = float('inf')
def get_divisors(a):
divisors = []
for d in range(1, int(math.isqrt(a)) + 1):
if a % d == 0:
divisors.append((d, a // d))
if d != a // d:
... |
Anda akan diberi pohon berakar di mana setiap tepi memiliki biaya dan setiap puncak memiliki nilai. Tugas Anda adalah untuk menemukan jumlah maksimum nilai puncak yang dapat dikunjungi dari akar ke daun dalam batas biaya tertentu C. Anda dapat mengurangi biaya setiap tepi dengan memutihkannya (menggulingkan ke bawah) s... | Easy and hard versions are actually different problems, so we advise you to read both statements carefully.
You are given a weighted rooted tree, vertex 1 is the root of this tree.
A tree is a connected graph without cycles. A rooted tree has a special vertex called the root. A parent of a vertex v is the last differ... | codeforces | Okay, let's tackle this problem. Hmm, the task is to find the maximum sum of vertex values from the root (which is probably vertex 1, I guess) to any leaf, with the total edge costs not exceeding C. Oh right, and we can halve any edge's cost as many times as we want, rounding down each time. Oh right, so the edges can ... | import sys
from collections import deque
def main():
input = sys.stdin.read().split()
idx = 0
T = int(input[idx])
idx += 1
for _ in range(T):
n, C = int(input[idx]), int(input[idx+1])
idx +=2
edges = [[] for _ in range(n+1)]
degree = [0]*(n+1)
for _ in range(... |
Deskripsi Masalah**: Anda diberi urutan bilangan bulat yang mewakili permutasi dari bilangan asli pertama `n`. Tugas Anda adalah untuk menemukan subsekwensi yang semakin lama (LIS) dari urutan ini. Jika ada beberapa LIS dengan panjang yang sama, kembalikan salah satu dari mereka. ** Format Input**: Garis pertama berisi... | Artsem has a friend Saunders from University of Chicago. Saunders presented him with the following problem.
Let [n] denote the set {1, ..., n}. We will also write f: [x] → [y] when a function f is defined in integer points 1, ..., x, and all its values are integers from 1 to y.
Now then, you are given a function f: [... | codeforces | Okay, I have this programming problem where I need to find the longest increasing subsequence in a permutation of the first n natural numbers. Hmm, let's think about how to approach this.
So the problem says that given a permutation, I need to find the LIS. And the permutation is of the first n natural numbers, right?... | import bisect
n = int(input())
arr = list(map(int, input().split()))
tails = []
prev_map = {}
for num in arr:
j = bisect.bisect_left(tails, num)
if j == 0:
prev = None
else:
prev = tails[j-1]
prev_map[num] = prev
if j == len(tails):
tails.append(num)
else:
tail... |
Katakanlah nilai maksimum dari urutan valid yang dapat dibangun dari subset blok ini. ** Format input**: - Baris pertama berisi bilangan bulat `n` (1 ≤ n ≤ 100) yang mewakili jumlah blok. - Baris berikut ini masing-masing berisi dua bentuk (integer antara 1 dan 4) dan nilai (integer antara 1 dan 100,000) yang menggamba... | You are given $n$ blocks, each of them is of the form [color$_1$|value|color$_2$], where the block can also be flipped to get [color$_2$|value|color$_1$].
A sequence of blocks is called valid if the touching endpoints of neighboring blocks have the same color. For example, the sequence of three blocks A, B and C is v... | codeforces | Okay, I need to solve this problem where I have to find the maximum possible value of a valid sequence of blocks. Let's think about how to approach this.
So each block has two shapes and a value. The key is that when you place them in a sequence, consecutive blocks must have matching shapes on the touching ends. Also,... | def main():
import sys
n = int(sys.stdin.readline())
blocks = []
for _ in range(n):
a, b, v = map(int, sys.stdin.readline().split())
blocks.append((a, b, v))
dp = [0] * 5 # indexes 1-4 used
for a, b, v in blocks:
before_dp = dp.copy()
temp_dp = before_dp.cop... |
Anda diberi satu set pulau di kisi 2D di mana setiap pulau menempati persis satu sel dan tidak ada dua pulau yang saling tumpang tindih. Ukuran kisi adalah `1000 x 1000`. Setiap pulau diidentifikasi dengan koordinatnya `(x, y)`. Tugas Anda adalah menentukan total panjang garis pantai yang dibentuk oleh pulau-pulau. Seb... | Problem 1: Perimeter [Brian Dean, 2013]
Farmer John has arranged N hay bales (1 <= N <= 50,000) in the middle of
one of his fields. If we think of the field as a 1,000,000 x 1,000,000
grid of 1 x 1 square cells, each hay bale occupies exactly one of these
cells (no two hay bales occupy the same cell, of course).
FJ ... | usaco | Okay, I've got this problem to solve. Let's see what it's about. So, the task is to calculate the total coastline length of given islands on a 1000x1000 grid. Hmm, each island is just a single cell, and I need to count the perimeter that's adjacent to water.
Wait, right. So for each island, each side can contribute to... | n = int(input())
islands = set()
for _ in range(n):
x, y = map(int, input().split())
islands.add((x, y))
total = 0
for x, y in islands:
for dx, dy in [(-1, 0), (1, 0), (0, -1), (0, 1)]:
if (x + dx, y + dy) not in islands:
total += 1
print(total) |
**Keterangan Masalah**: Anda diberikan string yang mewakili urutan bohlam, di mana setiap bohlam dihidupkan (diwakili oleh '1') atau dimatikan (diwakili oleh '0'). **Anda harus mematikan semua bohlam saat bepergian dari kiri ke kanan. **Jika Anda menemukan bohlam yang dihidupkan, Anda harus menggunakan remote control u... | Chef wants to cross a hallway of N doors. These N doors are represented as a string. Each door is initially either open or close, represented by 1 or 0 respectively. Chef is required to go through all the doors one by one in the order that they appear, starting from the leftmost door and moving only rightwards at each ... | codechef | Okay, let's see. The problem is about turning all bulbs off by pressing the remote whenever we hit a '1', which then flips all subsequent bulbs. And we need the minimum number of presses. Hmm.
So the idea is, whenever we encounter a bulb that is on (1), we have to press the button here. Because if we don't, then we ca... | def main():
import sys
input = sys.stdin.read().split()
T = int(input[0])
index = 1
for _ in range(T):
S = input[index]
index += 1
flips = 0
res = 0
for c in S:
val = int(c)
actual = val ^ (flips % 2)
if actual == 1:
... |
**Kali pertama Vertex i diberikan oleh karakter c_i ('R' untuk merah dan 'B' untuk biru). **Anda perlu mengubah warna setiap vertex menjadi hijau. Dalam satu detik, Anda dapat melakukan salah satu dari tindakan berikut: **Pindah ke vertex yang berdekatan dan ubah warna ke hijau. **Berubah warna vertex di mana Anda saat... | There is a tree with N vertices numbered 1 through N.
The i-th edge connects Vertex x_i and y_i.
Each vertex is painted white or black.
The initial color of Vertex i is represented by a letter c_i.
c_i = W represents the vertex is white; c_i = B represents the vertex is black.
A cat will walk along this tree.
More spec... | atcoder | Okay, I need to solve this programming problem. Let me read the question again carefully.
The problem is about a tree where each node is initially red or blue. We have to turn all of them green with the minimum time. The actions allowed are either moving to an adjacent node and changing its color, or staying and chang... | import sys
def main():
N = int(sys.stdin.readline())
for _ in range(N-1):
sys.stdin.readline() # read and ignore edges
sys.stdin.readline() # read and ignore colors
print(N)
if __name__ == "__main__":
main() |
Anda perlu menemukan jumlah triplets \((i, j, k) \) dengan \(i < j < k \) sehingga jumlah digit angka di indeks ini dapat dibagi dengan 3. **Input Format**: - Garis pertama berisi bilangan bulat \(N \), ukuran array. - Garis berikutnya \(N \) berisi satu bilangan bulat masing-masing, menunjuk elemen array \((B \). **Ou... | Mehta is a forever alone and desperate guy. He has a crush on N girls of his society. He wants to impress them all and so he needs to do their task collectively.All the girls give him a number which he stores in an array named A of size N. To do their task, he has to report the number of triplets (i,j,k) in the array A... | hackerearth | Okay, I need to solve this problem where I have to find the number of triplets (i, j, k) with i<j<k such that the sum of the digits of B[i], B[j], B[k] is divisible by 3. Hmm. Let's think about how to approach this efficiently, especially considering the constraints where N can be up to 1e5.
First, the straightforwar... | def main():
import sys
input = sys.stdin.read().split()
n = int(input[0])
numbers = list(map(int, input[1:n+1]))
counts = [0, 0, 0]
for num in numbers:
mod = num % 3
counts[mod] += 1
c0, c1, c2 = counts
total = 0
# Triplets from each individual group
... |
"Grace" dari suatu urutan ditentukan sebagai perbedaan mutlak maksimum antara dua elemen dalam urutan. Karena jumlah ini bisa sangat besar, outputnya modulo `998244353`. **Input Format**: - Baris pertama berisi dua bilangan bulat `n` dan `k` (`2 ≤ k ≤ n ≤ 1000`). - Baris kedua berisi `n`, elemen dari urutan (`0 ≤ a_i ≤... | Let's call beauty of an array b_1, b_2, …, b_n (n > 1) — min_{1 ≤ i < j ≤ n} |b_i - b_j|.
You're given an array a_1, a_2, … a_n and a number k. Calculate the sum of beauty over all subsequences of the array of length exactly k. As this number can be very large, output it modulo 998244353.
A sequence a is a subsequenc... | codeforces | Okay, so I have this programming problem to solve, and I need to find the sum of the grace over all subsequences of length exactly k. The grace is the maximum absolute difference between any two elements in the subsequence. Hmm, right, the problem is asking for the sum of all those maximum differences for every possibl... | MOD = 998244353
def main():
import sys
n, k = map(int, sys.stdin.readline().split())
a = list(map(int, sys.stdin.readline().split()))
a.sort()
# Precompute factorial and inverse factorial up to n
max_n = n
fact = [1] * (max_n + 1)
for i in range(1, max_n + 1):
fact[i] = fac... |
Tugas Anda adalah untuk menemukan jumlah subarray berdekatan yang jumlahnya dapat dibagi dengan bilangan bulat tertentu `d`. ** Format Masukan**: - Garis pertama berisi dua bilangan bulat berdekatan ruang `d` dan `d` (1 ≤ n ≤ 4·10^5, 1 ≤ d ≤ 10^9). - Garis kedua berisi bilangan bulat berdekatan ruang yang mewakili elem... | Berland starts to seize the initiative on the war with Flatland. To drive the enemy from their native land, the berlanders need to know exactly how many more flatland soldiers are left in the enemy's reserve. Fortunately, the scouts captured an enemy in the morning, who had a secret encrypted message with the informati... | codeforces | Okay, I've got this programming problem to solve. Let's try to understand what it's about. The task is to count the number of contiguous subarrays whose sum is divisible by a given integer d. Hmm, right.
So, the input is an array of positive integers and two integers n (size of array) and d (divisor). The output is t... | n, d = map(int, input().split())
a = list(map(int, input().split()))
mod_counts = {0: 1}
current_sum = 0
result = 0
for num in a:
current_sum += num
mod = current_sum % d
result += mod_counts.get(mod, 0)
mod_counts[mod] = mod_counts.get(mod, 0) + 1
print(result) |
*Keterangan Masalah**: Anda diberi array yang mewakili harga item yang berbeda di toko selama beberapa hari. Selain itu, Anda memiliki array yang mewakili jumlah setiap item yang dijual setiap hari yang sesuai. Tugas Anda adalah menghitung total pendapatan yang dihasilkan dari penjualan dalam rentang hari tertentu untu... | As we know, Danny has a huge army and each time she wins a battle the size of her army is increased. Missandei, her advisor and Handmaiden, keeps the log of each battle and the amount and strength of soldiers won in a battle.
Now, Danny has some questions for Missandei in which she asks the strength of the army gaine... | codechef | Okay, I have to solve this problem. Let's read the problem statement carefully.
So, the task is to calculate the total revenue for a given range of days based on two arrays: one for prices and one for quantities sold each day.
Hmm, the input gives me N days and Q queries. For each query, I get a range L and R, and I... | def main():
import sys
input = sys.stdin.read().split()
idx = 0
N = int(input[idx])
idx += 1
Q_num = int(input[idx])
idx += 1
P = list(map(int, input[idx:idx+N]))
idx += N
Q = list(map(int, input[idx:idx+N]))
idx += N
# Compute prefix sums
prefix = [0] ... |
Anda bermain permainan di mana Anda memulai dengan satu batu dan ingin membangun rumah. Setiap rumah dapat dibangun menggunakan satu batu dan satu bata. Anda bertemu dengan seorang pedagang yang menawarkan dua jenis perdagangan: 1. Pertukaran \(1\) batu untuk \(p\) batu (Anda kehilangan \(1\) batu dan mendapatkan \(p\)... | You are playing a very popular game called Cubecraft. Initially, you have one stick and want to craft $k$ torches. One torch can be crafted using one stick and one coal.
Hopefully, you've met a very handsome wandering trader who has two trade offers: exchange $1$ stick for $x$ sticks (you lose $1$ stick and gain $x$ ... | codeforces | Okay, let's tackle this problem step by step. So the question is about finding the minimum number of trades needed to build at least m houses. Each house requires one stone and one brick. Hmm, right. So the initial stone count is 1, and we can perform two types of trades. Let me make sure I understand the trades correc... | import sys
def main():
input = sys.stdin.read().split()
idx = 0
n = int(input[idx])
idx += 1
for _ in range(n):
p = int(input[idx])
q = int(input[idx+1])
m = int(input[idx+2])
idx += 3
B = m
numerator = (m - 1) + B * q
denominator = p... |
**Pernyataan Masalah**: Anda bermain permainan "Menemukan dan Menggerakkan Kuadrat".Tujuan Anda adalah membuat karakter tertentu muncul secara berturut-turut sepenuhnya dalam string dengan memindahkan kejadian-kejadiannya (satu langkah kiri atau kanan). Permainan ini digambarkan oleh string panjang $n$, terdiri dari ka... | You are playing the game "Arranging The Sheep". The goal of this game is to make the sheep line up. The level in the game is described by a string of length $n$, consisting of the characters '.' (empty space) and '*' (sheep). In one move, you can move any sheep one square to the left or one square to the right, if the ... | codeforces | Okay, so I need to solve this programming problem where I have to find the minimum number of moves to make all the '#'s consecutive in a string. Let's see. The problem says that each '#' can move left or right one step at a time, and we want all of them to be next to each other with no dots in between. The key is to fi... | import sys
def main():
import sys
input = sys.stdin.read().split()
idx = 0
t = int(input[idx])
idx += 1
for _ in range(t):
n = int(input[idx])
idx +=1
s = input[idx]
idx +=1
positions = []
for i, c in enumerate(s):
if c == '#':
... |
Dalam permainan strategis yang serupa, Monocarp perlu melindungi wilayahnya dari serangan masuk. **Musuh berencana untuk menyerang bagian-bagian dinding Monocarp menggunakan katapult khusus. Dinding terdiri dari $n$ bagian, masing-masing memiliki daya tahan awal. Musuh dapat menyerang bagian mana pun secara langsung, m... | Monocarp plays "Rage of Empires II: Definitive Edition" — a strategic computer game. Right now he's planning to attack his opponent in the game, but Monocarp's forces cannot enter the opponent's territory since the opponent has built a wall.
The wall consists of $n$ sections, aligned in a row. The $i$-th section initi... | codeforces | Okay, I need to solve this programming problem where Monocarp has to determine the minimum number of catapult shots to break at least three sections of the wall. Let me understand the problem carefully.
So each catapult shot decreases a chosen section's durability by 3, and its adjacent sections by 1. We need to find ... | n = int(input())
a = list(map(int, input().split()))
min_shots = float('inf')
for i in range(n - 2):
left = a[i]
mid = a[i + 1]
right = a[i + 2]
required = max(left, right, (mid + 2) // 3)
if required < min_shots:
min_shots = required
print(min_shots) |
Sebuah buku berisi beberapa bab, masing-masing didefinisikan oleh halaman awal dan halaman akhir. Setiap bab memiliki nomor halaman berturut-turut, dan semua bab diatur secara berurutan dalam buku. Nastya telah menandai halaman tertentu dalam buku sebagai halaman terakhir yang dia baca. Tugas Anda adalah menentukan ber... | After lessons Nastya decided to read a book. The book contains n chapters, going one after another, so that one page of the book belongs to exactly one chapter and each chapter contains at least one page.
Yesterday evening Nastya did not manage to finish reading the book, so she marked the page with number k as the fi... | codeforces | <think>
Okay, I need to solve this programming problem. Let's read the problem carefully and figure out what I need to do.
So the problem is about chapters in a book, each with a start and end page. Nastya has read up to a certain page p, and I need to find how many entire chapters she has completed. That is, a chapte... | m = int(input())
chapters = []
for _ in range(m):
start, end = map(int, input().split())
chapters.append(end)
p = int(input())
count = 0
for end in chapters:
if end <= p:
count += 1
else:
break
print(count) |
**Jaringan jalan diwakili sebagai grafik terarah dengan persimpangan n dan jalan m. Setiap jalan menghubungkan dua persimpangan (ai ke bi) dan memiliki kapasitas lalu lintas ci. Sayangnya, beberapa jalan saat ini berlawanan arah, menyebabkan kebingungan lalu lintas. Tugas Anda adalah untuk menetapkan arah tetap untuk s... | Emuskald considers himself a master of flow algorithms. Now he has completed his most ingenious program yet — it calculates the maximum flow in an undirected graph. The graph consists of n vertices and m edges. Vertices are numbered from 1 to n. Vertices 1 and n being the source and the sink respectively.
However, his... | codeforces | <think>
Okay, I need to solve this programming problem. Let's try to understand the problem step by step.
So, the problem is about a directed graph of roads, and we need to assign directions to each road such that certain conditions are met.
Let me read the problem statement again carefully.
We have n intersections... | def main():
import sys
input = sys.stdin.read
data = input().split()
idx = 0
n = int(data[idx])
m = int(data[idx + 1])
idx += 2
for _ in range(m):
ai = int(data[idx])
bi = int(data[idx + 1])
ci = int(data[idx + 2])
idx += 3
if ai == 1:
... |
Perbandingan Masalah**: Kota memiliki serangkaian taman yang saling terhubung, masing-masing diwakili sebagai pohon biner. Dewan kota perlu menanam pohon unik di taman-taman ini sambil memastikan bahwa pohon biner yang mewakili taman-taman tersebut memiliki setidaknya tingkat \(h \). | In one very old text file there was written Great Wisdom. This Wisdom was so Great that nobody could decipher it, even Phong — the oldest among the inhabitants of Mainframe. But still he managed to get some information from there. For example, he managed to learn that User launches games for pleasure — and then terribl... | codeforces | <think>
Okay, I have to solve this problem where I need to calculate the number of valid binary trees with n nodes and a minimum height h. Hmm, binary trees here refer to the structure where each node can have up to two children, and the height is the maximum depth from the root to any leaf, counting the number of node... | n_target, h_target = map(int, input().split())
max_n = n_target
max_h = 2 * max_n # Theoretical maximum height for n nodes is n.
# Initialize DP and cumulative sum arrays
dp = [[0] * (max_h + 2) for _ in range(max_n + 2)]
sum_n_h = [[0] * (max_h + 2) for _ in range(max_n + 2)]
# Base case: empty tree has height 0
f... |
**Pernyataan Masalah**: Sebuah perusahaan menganalisis kinerja tim penjualan mereka selama periode tertentu. **Data penjualan untuk `n` berturut-turut diberikan, dan perusahaan ingin menentukan nilai "efisiensi penjualan" maksimum. **Efisiensi penjualan untuk segmen hari berturut-turut didefinisikan sebagai penjualan r... | The heat during the last few days has been really intense. Scientists from all over the Berland study how the temperatures and weather change, and they claim that this summer is abnormally hot. But any scientific claim sounds a lot more reasonable if there are some numbers involved, so they have decided to actually cal... | codeforces | <think>
Okay, so I have this problem to solve. Let's see what it's about. The problem is about calculating the maximum sales efficiency for a company over a period of n days. Efficiency is defined as the average sales for a segment of consecutive days, but this segment has to be at least k days long. My task is to find... | n, k = map(int, input().split())
s = list(map(int, input().split()))
prefix = [0] * (n + 1)
for i in range(n):
prefix[i + 1] = prefix[i] + s[i]
max_avg = 0.0
for L in range(k, n + 1):
for i in range(n - L + 1):
total = prefix[i + L] - prefix[i]
avg = total / L
if avg > max_avg:
... |
Perencanaan: Sebuah perusahaan sedang mengatur serangkaian putaran eliminasi untuk menyaring kandidat untuk posisi pekerjaan. Mulai dari jumlah kandidat yang besar, jumlah kandidat yang maju ke putaran berikutnya ditentukan dengan menyusun angka-angka jumlah kandidat yang saat ini ada. Prosesnya berhenti ketika jumlah ... | N programmers are going to participate in the preliminary stage of DDCC 20XX. Due to the size of the venue, however, at most 9 contestants can participate in the finals.
The preliminary stage consists of several rounds, which will take place as follows:
* All the N contestants will participate in the first round.
* W... | atcoder | <think>
Okay, I've got this programming problem to solve. Let's see what it's about. So, the company is organizing elimination rounds, and the number of candidates reduces in each round based on the sum of their digits. The process stops when it's a single-digit number. The task is to calculate the total number of roun... | M = int(input())
lines = []
for _ in range(M):
d, c = map(int, input().split())
lines.append((d, c))
number_str = ''.join(str(d) * c for d, c in lines)
rounds = 0
while len(number_str) > 1:
sum_digits = sum(int(ch) for ch in number_str)
rounds += 1
number_str = str(sum_digits)
print(rounds) |
**Pernyataan Masalah**: Sebuah perusahaan pengiriman memiliki N titik pengiriman (1 <= N <= 2000) yang terletak di sepanjang jalan lurus, diwakili sebagai garis nomor satu dimensi. Perusahaan ingin mendirikan stasiun pengisian daya untuk kendaraan pengiriman listriknya. Biaya untuk memasang stasiun pengisian daya terga... | Problem 2: Wifi Setup [Brian Dean, 2012]
Farmer John's N cows (1 <= N <= 2000) are all standing at various positions
along the straight path from the barn to the pasture, which we can think of
as a one-dimensional number line. Since his cows like to stay in email
contact with each-other, FJ wants to install Wifi base... | usaco | Okay, I have this programming problem to solve. Let's try to understand it step by step.
So, the problem is about setting up charging stations along a road for a delivery company. The road is a straight line, and each delivery point is located at some position on this line. The goal is to install charging stations suc... | n, C, D = map(int, input().split())
points = [int(input()) for _ in range(n)]
points.sort()
if n == 0:
print(0.0)
else:
dp = [float('inf')] * n
dp[0] = C # Covering just the first point with r=0
for i in range(1, n):
for j in range(i + 1):
left = points[j]
right = ... |
Keterangan Masalah**: Sekelompok teman `n` memutuskan untuk memainkan permainan pertukaran hadiah rahasia. Setiap teman secara acak memilih teman lain dan memberikan hadiah kepada mereka. Namun, setiap teman menyimpan rahasia hadiah mereka. Setelah acara, penyelenggara ingin menentukan berapa banyak hadiah yang diterim... | Little Petya very much likes gifts. Recently he has received a new laptop as a New Year gift from his mother. He immediately decided to give it to somebody else as what can be more pleasant than giving somebody gifts. And on this occasion he organized a New Year party at his place and invited n his friends there.
If t... | codeforces | <think>
Okay, let's think about how to approach this problem. So, the problem is about friends exchanging gifts, and we need to determine how many gifts each friend received based on a list of who each friend gave their gift to.
Hmm, the input gives us a list where the i-th element is the friend that the i-th friend g... | n = int(input())
recipients = list(map(int, input().split()))
counts = [0] * (n + 1)
for r in recipients:
counts[r] += 1
print(' '.join(map(str, counts[1:n+1]))) |
**Tujuan adalah untuk bertukar satu siswa tepat satu siswa di antara kedua kelompok untuk membuat total tingkat keterampilan kedua kelompok sama. ** Cari dua siswa (satu dari setiap kelompok) untuk bertukar sedemikian rupa sehingga jumlah tingkat keterampilan mereka menjadi minimum. Jika tidak ada pertukaran seperti it... | Taro and Hanako have numbers of cards in their hands. Each of the cards has a score on it. Taro and Hanako wish to make the total scores of their cards equal by exchanging one card in one's hand with one card in the other's hand. Which of the cards should be exchanged with which?
Note that they have to exchange their ... | aizu | <think>
Okay, I need to solve this programming problem. Let's read the problem carefully.
So, the problem is about two groups of students. Each group has a certain number of students with given skill levels. The goal is to exchange exactly one student from each group so that the total skills of both groups become equa... | import sys
def main():
while True:
line = sys.stdin.readline()
if not line:
break
a, b = map(int, line.strip().split())
if a == 0 and b == 0:
break
groupA = []
for _ in range(a):
x = int(sys.stdin.readline())
g... |
Deskripsi Masalah**: Klub hoki sedang mengorganisir acara serupa dengan tongkat hoki. Pemain akan melewati tongkat sesuai dengan instruksi yang diberikan. Karena pemain awal memegang tongkat, tentukan pemegang final setelah semua pass dijalankan. Pass adalah dua jenis: 1. P ID - Pemain saat ini menyerahkan tongkat ke p... | The very famous football club Manchester United decided to popularize football in India by organizing a football fest. The fest had many events for different sections of people.
For the awesome coders of Hacker Earth, there was an event called PASS and BACK. In this event, the coders were given N passes and players hav... | hackerearth | Okay, I need to solve this programming problem where I have to track the holder of a hockey stick after a series of passes. Let's understand the problem step by step.
So, the problem says that each test case starts with an initial holder. Then, there are N passes. Each pass is either of type 'P ID' which means the cur... | def determine_holder():
import sys
input = sys.stdin.read().split()
idx = 0
T = int(input[idx])
idx += 1
for _ in range(T):
N = int(input[idx])
ID = int(input[idx + 1])
idx += 2
current = ID
last_passer = None
for _ in range(N):
cmd = i... |
**Keterjemahan Masalah**: Seorang perpustakaan ingin mengkategorikan buku dengan memberikan kode numerik berdasarkan judul setiap buku. Setiap huruf dalam judul buku akan diterjemahkan ke dalam angka menggunakan aturan khusus yang mirip dengan keyboard telepon tradisional. **Tuliskan program yang mengambil judul buku d... | Introduction
Mr. Safety loves numeric locks and his Nokia 3310. He locked almost everything in his house. He is so smart and he doesn't need to remember the combinations. He has an algorithm to generate new passcodes on his Nokia cell phone.
Task
Can you crack his numeric locks? Mr. Safety's treasures wait for ... | codewars | Okay, let's see. I need to write a Python program that converts a book title into a numeric code based on the phone keypad. Hmm, the problem says it's similar to the traditional phone keypad. Let me recall how those keypads work.
Right, the traditional phone keypad has letters assigned to each number like this:
2: AB... | def main():
import sys
title = sys.stdin.readline().strip()
title_upper = title.upper()
# Define the groups based on traditional phone keypad layout
groups = {
'2': 'ABC',
'3': 'DEF',
'4': 'GHI',
'5': 'JKL',
'6': 'MNO',
'7': 'PQRS',
'8': '... |
Perencanaan proyek baru untuk memasang papan reklame raksasa di samping jalan raya untuk memastikan bahwa itu terlihat oleh pengemudi yang bepergian di sepanjang jalan. Visibilitas papan reklame terhambat oleh lampu lampu yang ada di berbagai ketinggian. Mengingat posisi dan ketinggian lampu ini, hitunglah ketinggian m... | A project is underway to build a new viewing tower in Bange town called “Bange Hills Tower” whose selling point will be the gorgeous view of the entire main keep of Wakamatsu Castle from top to bottom. Therefore, the view line from the top of the tower must reach the bottom of the keep without being hindered by any of ... | aizu | <think>
Okay, so I have this programming problem to solve. Let's try to understand what it's asking. The problem is about determining the minimum height a billboard needs to be so that it's visible from a specific viewing point on a highway. The visibility is obstructed by existing lampposts. So, I need to make sure th... | n, b = map(int, input().split())
v = int(input())
max_h = 0.0
for _ in range(n):
x, h = map(int, input().split())
if v < x < b:
numerator = h * (b - v)
denominator = x - v
H = numerator / denominator
if H > max_h:
max_h = H
print("{0:.6f}".format(max_h)) |
**Pernyataan Masalah**: Sebuah angka dianggap superprime jika merupakan bilangan prima dan semua digitnya adalah bilangan genap. Misalnya, 2 dan 6 adalah superprime karena mereka adalah bilangan prima dan satu-satunya digitnya adalah bilangan genap; namun, 11 bukanlah superprime karena tidak bilangan prima, dan 24 buka... | A prime number is an integer greater than $1$ that has no positive divisors other than $1$ and itself.
We call a number megaprime if it is prime and all of its individual digits are prime. For example, $53$ is megaprime because it is prime and all its digits ($5$ and $3$) are prime; however, $35$ is not megaprime beca... | hackerrank | Okay, I need to solve this programming problem. Let's see what the problem is about. So, the task is to count the number of superprime numbers between a given start and end, inclusive.
Hmm, what's a superprime? Oh right, a superprime is a prime number where all of its digits are even. That means each digit in the numb... | def is_all_even_digits(n):
s = str(n)
for c in s:
if c not in {'0', '2', '4', '6', '8'}:
return False
return True
def is_prime(n):
if n <= 1:
return False
elif n <= 3:
return True
elif n % 2 == 0:
return False
d = n - 1
s = 0
while d % 2 =... |
Pernyataan Masalah**: Sebuah tempat parkir memiliki gerbang otomatis yang terbuka dan ditutup berdasarkan waktu kedatangan mobil. Gerbang beroperasi sebagai berikut: - Jika mobil tiba dan gerbang ditutup, gerbang dibuka segera. - Jika mobil tiba dan gerbang dibuka, mobil masuk langsung. - Gerbang ditutup setelah period... | There is an automatic door at the entrance of a factory. The door works in the following way:
- when one or several people come to the door and it is closed, the door immediately opens automatically and all people immediately come inside, - when one or several people come to the door and it is open, all people immed... | codeforces | Okay, I've got this programming problem to solve. Let's read through it carefully and understand what's being asked.
The problem is about a parking lot gate that opens and closes automatically based on the arrival times of cars. The rules for the gate are a bit specific. I need to model this behavior and determine ho... | n, d = map(int, input().split())
times = list(map(int, input().split()))
times.sort()
current_end = 0
count = 0
for t in times:
if t >= current_end:
count += 1
current_end = t + d
print(count) |
Deskripsi Masalah**: Sebuah batang cokelat persegi panjang memiliki dimensi \(W \times H \) ( lebar \(W \) dan tinggi \(H \), di mana \(W \) dan \(H \) adalah bilangan bulat positif).Satu garis cokelat berlawanan dan horizontal yang menunjukkan di mana itu dapat dipecah.Waktu yang dibutuhkan untuk memecahkan cokelat di... | problem
There is one bar-shaped candy with a length of N mm (where N is an even number). Two JOI officials decided to cut this candy into multiple pieces and divide them into a total of N / 2 mm. did.
For unknown reasons, this candy has different ease of cutting depending on the location. The two examined the candy e... | aizu | <think>
Alright, I need to solve this programming problem. Let's read the problem carefully and understand what needs to be done.
So, the problem is about breaking a chocolate bar into four equal-sized subrectangles. The chocolate has vertical and horizontal lines where it can be broken, each with a certain time cost.... | def main():
import sys
input = sys.stdin.read().split()
ptr = 0
W = int(input[ptr])
ptr +=1
H = int(input[ptr])
ptr +=1
v = list(map(int, input[ptr:ptr+W-1]))
ptr += W-1
h = list(map(int, input[ptr:ptr+H-1]))
ptr += H-1
# Calculate the position to split vertically
... |
Penjelasannya**: Sebuah grid persegi panjang berukuran \(R \times C \) diberikan, di mana setiap sel adalah tanah (`L`) atau air (`W`). Sel tanah membentuk satu atau lebih pulau, dan semua sel di dalam sebuah pulau terhubung (Anda dapat bergerak di antara sel tanah dalam arah utama: atas, bawah, kiri, atau kanan).Tujua... | problem
Given the squares of $ R * C $. Each square is either an empty square or a square with a hole. The given square meets the following conditions.
* The cells with holes are connected. (You can move a square with a hole in the cross direction to any square with a hole)
* Empty cells are connected.
You can gen... | aizu | <think>
Okay, I'm trying to solve this programming problem. Let me read and understand the question carefully.
So the problem is about finding the minimum number of bridges needed to connect all the islands into a single landmass. The grid is R x C, each cell is either land (L) or water (W). The land cells form one or... | from collections import deque
import sys
def main():
r, c = map(int, sys.stdin.readline().split())
grid = []
for _ in range(r):
row = list(sys.stdin.readline().strip())
grid.append(row)
visited = [[False for _ in range(c)] for _ in range(r)]
count = 0
for i in range(r)... |
Deskripsi Masalah**: Sebuah urutan integer `l`b1, b2, ..., bl` (1 ≤ b1 ≤ b2 ≤ ... ≤ bl ≤ n) disebut "spesial" jika pembagi umum terbesar (GCD) dari semua integer dalam urutan sama dengan 1. | Mashmokh's boss, Bimokh, didn't like Mashmokh. So he fired him. Mashmokh decided to go to university and participate in ACM instead of finding a new job. He wants to become a member of Bamokh's team. In order to join he was given some programming tasks and one week to solve them. Mashmokh is not a very experienced prog... | codeforces | <think>
Okay, I need to solve this programming problem. Let's read the problem carefully.
So, the task is to find the number of "special" sequences of length k given integers n and k. A sequence is special if the GCD of all its elements is 1.
Hmm, how do I approach this? Let's think.
Wait, the problem says the seque... | MOD = 10**9 + 7
def main():
import sys
input = sys.stdin.read
data = input().split()
n = int(data[0])
k = int(data[1])
# Precompute factorials and inverse factorials up to 3999
max_fact = 3999
fact = [1] * (max_fact + 1)
for i in range(1, max_fact + 1):
fact[i] = fact[i... |
Deskripsi Masalah**: Sebuah urutan bilangan bulat disebut "harmonius" jika untuk setiap pasangan indeks yang berbeda \(i \neq j \): - \(\text{gcd}(a[i], a[j]) > 1 \), di mana gcd mewakili pembagi umum terbesar. | Polycarp found on the street an array a of n elements.
Polycarp invented his criterion for the beauty of an array. He calls an array a beautiful if at least one of the following conditions must be met for each different pair of indices i ≠ j:
* a_i is divisible by a_j;
* or a_j is divisible by a_i.
For exam... | codeforces | <think>
Okay, so I've got this problem to solve, and I need to figure out how to approach it. Let's read through the problem statement again to make sure I understand what's being asked.
The problem says that a sequence of integers is called "harmonious" if for every distinct pair of indices i and j, the greatest comm... | import sys
from collections import defaultdict
def precompute_spf(max_num):
spf = list(range(max_num + 1)) # Initialize each number as its own spf
for i in range(2, int(max_num**0.5) + 1):
if spf[i] == i: # i is a prime
for j in range(i * i, max_num + 1, i):
if spf[j] == j... |
**Satu set blok berwarna N ditempatkan di baris horizontal, di mana setiap blok diwakili oleh bilangan bulat: 1 untuk merah, 2 untuk biru, dan 3 untuk kuning. Pemain dapat menghapus satu blok dari baris ini. Setelah menghapus blok, blok-blok yang berdekatan dapat membentuk kelompok tiga atau lebih blok berturut-turut w... | problem
There are the following games.
N characters are lined up in a vertical row. The color of these characters is red, blue, or yellow, and in the initial state, four or more characters of the same color are not lined up in a row. The player can select a character at a certain position and change it to another col... | aizu | Okay, I have to solve this programming problem. Let's read the problem carefully.
So the problem is: Given a row of colored blocks, each being 1, 2, or 3, the player can remove one block. Then, any groups of three or more consecutive blocks of the same color disappear. This process continues recursively until no more ... | def process(arr):
while True:
if not arr:
break
runs = []
current = arr[0]
count = 1
for num in arr[1:]:
if num == current:
count += 1
else:
runs.append((current, count))
current = num
... |
Deskripsi Masalah**: Sebuah tim dari `N` orang, termasuk pemimpin, memenangkan kontes dan menerima hadiah total poin `K`. Pemimpin ingin membagi poin di antara anggota tim sesuai aturan berikut: Pemimpin dapat mempertahankan poin `M` untuk diri mereka sendiri. Bagi anggota tim lainnya, setiap anggota menerima setidakny... | Prize
Segtree entered a programming contest with a team of $ N $ and won a $ K $ yen prize! I'm trying to distribute this prize now.
Each $ N $ team member, including Segtree, is numbered from $ 1 $ to $ N $ in order of ability. Segtree is $ 1 $.
If the prize amount of $ i $'s teammate $ (i \ geq 2) $ is less than "... | aizu | <think>
Okay, so I've got this problem to solve. Let's see what it's about. Hmm, we have a team of N people, and the leader wants to divide K points in a specific way. The goal is to find the maximum points the leader can keep, ensuring the total doesn't exceed K.
Let me try to understand the problem. The leader can k... | n, k = map(int, input().split())
max_m = 0
low = 0
high = k
while low <= high:
mid = (low + high) // 2
t = n - 1 # number of terms to sum
s = 0
current = mid // 2
steps = t
while steps > 0 and current > 0:
s += current
current = current // 2
steps -= 1
total = mid ... |
Sebuah tim geolog sedang mempelajari aktivitas gunung berapi di wilayah persegi panjang besar. Wilayah ini dibagi menjadi `N` kubus persegi panjang, masing-masing mewakili area penyebaran lava dari letusan gunung berapi yang lalu. Sebuah titik di wilayah ini diwakili sebagai ` x, y, z) `, di mana `x adalah jarak ke tim... | problem
To the west of the Australian continent is the wide Indian Ocean. Marine researcher JOI is studying the properties of N species of fish in the Indian Ocean.
For each type of fish, a rectangular parallelepiped habitat range is determined in the sea. Fish can move anywhere in their habitat, including boundaries... | aizu | Okay, I have to solve this programming problem. Let me read the problem statement carefully and understand what it's asking.
The problem is about calculating the total volume where at least K lava zones overlap in a 3D space. Each lava zone is a cuboid defined by its minimum and maximum x, y, z coordinates.
Hmm. So, ... | def main():
import sys
input = sys.stdin.read().split()
idx = 0
N, K = int(input[idx]), int(input[idx+1])
idx += 2
cuboids = []
x_coords = set()
y_coords = set()
z_coords = set()
for _ in range(N):
x1 = int(input[idx])
y1 = int(input[idx+1])
z1 =... |
Deskripsi Masalah**: Sebuah tim robot ditempatkan di array linier dari tiga stasiun pengisian daya. Setiap robot memiliki peringkat unik dari 1 sampai \(n \), dan semua robot awalnya memulai di stasiun pengisian daya ketiga. Robot hanya dapat bergerak antara stasiun yang berdekatan, dan robot hanya dapat bergerak jika ... | An expedition group flew from planet ACM-1 to Earth in order to study the bipedal species (its representatives don't even have antennas on their heads!).
The flying saucer, on which the brave pioneers set off, consists of three sections. These sections are connected by a chain: the 1-st section is adjacent only to the... | codeforces | <think>
Okay, I need to solve this programming problem, but I'm not sure where to start. Let's try to understand the problem step by step.
So, the problem is about robots moving between three charging stations. All robots start at station 3, and they need to move to station 1. The movement has some rules: a robot can ... | n, m = map(int, input().split())
result = (n * (n + 1)) % m
print(result) |
Deskripsi Masalah**: Sebuah kota sedang menggelar festival dan membangun jalur dekoratif khusus. Jalur ini terdiri dari tiang lampu `(2n - 2) `. Untuk tujuan estetika, tepatnya tiang lampu berturut-turut di jalur harus dihiasi dengan jenis lampu yang sama. Ada empat jenis lampu yang tersedia. Tentukan berapa banyak car... | To quickly hire highly skilled specialists one of the new IT City companies made an unprecedented move. Every employee was granted a car, and an employee can choose one of four different car makes.
The parking lot before the office consists of one line of (2n - 2) parking spaces. Unfortunately the total number of cars... | codeforces | <think>
Okay, I've got this programming problem to solve. Let's see what it says.
So the problem is about decorating a lane with lamp posts. The lane has (2n - 2) lamp posts. We need exactly n consecutive lamp posts to be decorated with the same type of bulb. There are four types available. We have to find out the num... | n = int(input())
m = 2 * n - 2
total = 0
for i in range(m - n + 1):
# Calculate the number of edges
edges = 0
if i > 0:
edges += 1
if i + n < m:
edges += 1
# Calculate the number of remaining lamps
remaining = m - n - edges
ways = 4 * (3 ** edges) * (4 ** remaining)
... |
**Keselamatan **Problem Description**: Agent Jack sekarang melarikan diri melalui hutan berbahaya bukan tebing. Hutan terdiri dari grid dengan pohon, clearing, dan lubang. Jack memulai dari baris pertama grid di clearing ('S') dan harus mencapai baris terakhir di clearing ('T'). grid berisi berbagai medan dengan biaya ... | At 17:00, special agent Jack starts to escape from the enemy camp. There is a cliff in between the camp and the nearest safety zone. Jack has to climb the almost vertical cliff by stepping his feet on the blocks that cover the cliff. The cliff has slippery blocks where Jack has to spend time to take each step. He also ... | aizu | <think>
Okay, I have this programming problem to solve. Let's read it carefully.
So, Jack is escaping through a forest grid from S (start) on the first row to T (target) on the last row. The grid has trees (maybe other characters), clearings, and pits. Jack can only step on clearings or terrains with cost 1-9. He can'... | import heapq
def main():
w, h, limit = map(int, input().split())
grid = []
for _ in range(h):
row = input().strip().split()
grid.append(row)
# Find the start and end positions
start = None
end = None
for j in range(w):
if grid[0][j] == 'S':
start = (... |
Alex telah merancang skema enkripsi baru untuk string. Karena string `s`, dia mengenkripsi dengan mengulangi karakter i-th dari `s` `(i+1) kali. Misalnya, jika `s = "cat"`, string yang dienkripsi menjadi: - "c" (terulang 1 kali) → "aa" (terulang 2 kali) → "ttt" (terulang 3 kali), menghasilkan string `caaattttttt`. Tuga... | Polycarp loves ciphers. He has invented his own cipher called repeating.
Repeating cipher is used for strings. To encrypt the string s=s_{1}s_{2} ... s_{m} (1 ≤ m ≤ 10), Polycarp uses the following algorithm:
* he writes down s_1 ones,
* he writes down s_2 twice,
* he writes down s_3 three times,
* ...
... | codeforces | <think>
Okay, I have this programming problem to solve. Let's see what it's about. So the problem is about decrypting an encrypted string based on a specific pattern.
From the problem description, when Alex encrypts a string s, the i-th character is repeated (i+1) times. Wait, i here is the index in the original strin... | n = int(input())
t = input().strip()
s = []
index = 0
group_size = 1
while index < len(t):
# Extract the group of current group_size
group = t[index:index + group_size]
# Append the first character of the group to s
s.append(group[0])
# Move to the next group
index += group_size
group_size... |
Alex berpartisipasi dalam maraton pengkodean yang terdiri dari `n` masalah. Setiap masalah memiliki identifier unik yang di nomorkan secara berurutan dari `1` ke `n`. Beberapa masalah ditandai sebagai "masalah inti", sementara yang lain adalah opsional. Alex telah memecahkan beberapa masalah, dan untuk setiap masalah y... | Sereja is a coder and he likes to take part in Codesorfes rounds. However, Uzhland doesn't have good internet connection, so Sereja sometimes skips rounds.
Codesorfes has rounds of two types: Div1 (for advanced coders) and Div2 (for beginner coders). Two rounds, Div1 and Div2, can go simultaneously, (Div1 round cannot... | codeforces | <think>
Okay, let's try to figure out this problem. So, Alex is solving the x-th problem right now, and we need to find out the minimum and maximum number of core problems he could have skipped before this point. Hmm.
First, let's understand the problem. We have a total of n problems. Some are core, others are optiona... | n, x = map(int, input().split())
k = int(input())
c = 0
for _ in range(k):
t, _ = map(int, input().split())
if t == 1:
c += 1
u = (x - 1) - k
min_skipped = 0
max_skipped = u
print(min_skipped, max_skipped) |
Alex berlatih untuk maraton dengan menjalankan putaran di sekitar trek bulat. Trek ini memiliki *n* titik pemeriksaan berbeda bernomor 1 sampai *n*. Alex memulai di titik pemeriksaan *a* dan menjalankan putaran *b* dalam arah tertentu. Jika *b* positif, Alex berjalan ke arah jam; jika *b* negatif, Alex berjalan ke arah... | Vasya lives in a round building, whose entrances are numbered sequentially by integers from 1 to *n*. Entrance *n* and entrance 1 are adjacent.
Today Vasya got bored and decided to take a walk in the yard. Vasya lives in entrance *a* and he decided that during his walk he will move around the house *b* entrances in th... | codeforces | Okay, I need to solve this programming problem. Let's read the problem carefully and think about how to approach it.
So, the problem is about Alex running laps on a circular track with checkpoints. The track has n checkpoints numbered 1 to n. He starts at a, runs b laps, and the direction depends on if b is positive o... | n, a, b = map(int, input().split())
new_index = (a - 1 + b) % n
print(new_index + 1) |
Alex mencoba menavigasi grid sambil menghindari zona berbahaya. Dia memulai di awal grid, dan ada $n$ vektor $(a_1, b_1), (a_2, b_2), \ldots, (a_n, b_n) $. Untuk setiap langkah $i$, Alex dapat menambahkan $(a_i, b_i) $ atau mengurangi $(a_i, b_i) $ ke/dari posisinya saat ini. Anda perlu menentukan urutan gerakan sedemi... | For a vector $\vec{v} = (x, y)$, define $|v| = \sqrt{x^2 + y^2}$.
Allen had a bit too much to drink at the bar, which is at the origin. There are $n$ vectors $\vec{v_1}, \vec{v_2}, \cdots, \vec{v_n}$. Allen will make $n$ moves. As Allen's sense of direction is impaired, during the $i$-th move he will either move in th... | codeforces | Okay, I'm trying to solve this programming problem. Let me read and understand it carefully.
So, the problem is about Alex navigating through a grid. He starts at the origin (0,0). There are n vectors provided, and for each move i, he can choose to add or subtract the vector (a_i, b_i) to his current position. The goa... | n = int(input())
x, y = 0, 0
directions = []
for _ in range(n):
a, b = map(int, input().split())
new_x_plus = x + a
new_y_plus = y + b
d_plus = abs(new_x_plus) + abs(new_y_plus)
new_x_minus = x - a
new_y_minus = y - b
d_minus = abs(new_x_minus) + abs(new_y_minus)
if d_plus < d_minus:
... |
Deskripsi Masalah**: Alice memiliki papan reklame digital yang menampilkan angka menggunakan tampilan tujuh segmen. Papan reklame dapat menampilkan beberapa angka dalam urutan, dipisahkan oleh simbol delimiter khusus (mis., "-"). Alice ingin tahu jumlah total segmen yang diterangi jika semua angka dari `x` sampai `y` d... | Once Max found an electronic calculator from his grandfather Dovlet's chest. He noticed that the numbers were written with seven-segment indicators (<https://en.wikipedia.org/wiki/Seven-segment_display>).
<image>
Max starts to type all the values from a to b. After typing each number Max resets the calculator. Find t... | codeforces | <think>
Okay, I need to solve this problem where Alice's billboard uses seven-segment displays to show numbers, connected by delimiters. The task is to calculate the total number of segments illuminated when all numbers from x to y are displayed as a sequence, including the delimiters between them.
Hmm, so first, I sh... | def calculate_total_segments(x, y):
segment_map = {
'0': 6, '1': 2, '2': 5, '3': 5, '4': 4,
'5': 5, '6': 6, '7': 3, '8': 7, '9': 6,
'-': 4
}
total = 0
for number in range(x, y + 1):
s = str(number)
for c in s:
total += segment_map[c]
if nu... |
Deskripsi Masalah**: Alice memiliki daya tarik terhadap grafik yang tidak diarahkan dan ingin membangun grafik persahabatan yang unik**. Sebuah grafik dianggap sebagai grafik persahabatan yang unik jika ia memenuhi syarat berikut: 1. Dia terhubung. 2. Ada satu puncak yang disebut "host" sehingga setiap puncak lainnya t... | George loves graphs. Most of all, he loves interesting graphs. We will assume that a directed graph is interesting, if it meets the following criteria:
* The graph doesn't contain any multiple arcs;
* There is vertex v (we'll call her the center), such that for any vertex of graph u, the graph contains arcs (u, ... | codeforces | <think>
Okay, I need to solve this problem where Alice wants to transform a given graph into a unique friendship graph. Hmm, let's think about what a unique friendship graph is. From the problem statement, I remember that it's a connected graph where there's a single host vertex connected directly to all other vertices... | n, m = map(int, input().split())
degrees = [0] * (n + 1)
for _ in range(m):
u, v = map(int, input().split())
degrees[u] += 1
degrees[v] += 1
min_modifications = float('inf')
for h in range(1, n + 1):
c = degrees[h]
mod = (n - 1) + m - 2 * c
if mod < min_modifications:
min_modifications... |
Deskripsi Masalah**: Alice memiliki daftar bilangan bulat dan ingin menemukan urutan terpanjang yang bergantian antara meningkat dan menurun. Sebuah urutan terpanjang valid jika elemen-elemennya mengikuti pola ini: - Elemen pertama dapat menjadi angka apapun. - Elemen kedua harus lebih besar atau lebih kecil dari yang ... | Gena loves sequences of numbers. Recently, he has discovered a new type of sequences which he called an almost arithmetical progression. A sequence is an almost arithmetical progression, if its elements can be represented as:
* a1 = p, where p is some integer;
* ai = ai - 1 + ( - 1)i + 1·q (i > 1), where q is som... | codeforces | <think>
Okay, I've got this programming problem to solve. Let's read through the problem statement carefully.
So, Alice has a list of integers, and we need to find the longest subsequence that alternates between increasing and decreasing. Hmm, wait. Let me make sure I understand the pattern.
The rules are:
- The firs... | n = int(input())
a = list(map(int, input().split()))
up = [1] * n
down = [1] * n
for i in range(n):
for j in range(i):
if a[j] < a[i]:
if down[j] + 1 > up[i]:
up[i] = down[j] + 1
elif a[j] > a[i]:
if up[j] + 1 > down[i]:
down[i] = up[j] + 1
m... |
Permainan ini terdiri dari grid 3x3 (9 sel) di mana setiap sel berisi angka dari 1 hingga 8, dan satu sel kosong (dilambangkan sebagai `0`). Alice dapat memindahkan angka-angka yang berdekatan dengan ruang kosong (`0`) ke dalam sel kosong, secara efektif menukar posisi mereka. Tujuan permainan adalah untuk mengatur kem... | Taro is very good at 8 puzzles and always has his friends sort them out during breaks. At that time, my friend asked me, "Can you solve more complicated puzzles?", But I have never done other puzzles. Apparently the friend made 11 puzzles by himself. The puzzle has the following shape.
<image>
11 The puzzle is done ... | aizu | <think>
Okay, so I need to solve this problem where Alice has a grid puzzle, and I have to find the minimum number of moves to reach the target configuration. If it's not possible within 15 moves, I should output NA.
Hmm, the problem reminds me of the classic 8-puzzle problem, which is a sliding puzzle where you need ... | from collections import deque
def read_grid():
grid = []
for _ in range(3):
row = list(map(str, input().split()))
grid.extend(row)
return ''.join(grid)
def main():
target = "123456780"
while True:
line = input()
if line == '-1':
break
# Read the ... |
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