message stringlengths 2 433k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 113 108k | cluster float64 12 12 | __index_level_0__ int64 226 217k |
|---|---|---|---|---|---|
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As usual, Sereja has array a, its elements are integers: a[1], a[2], ..., a[n]. Let's introduce notation:
<image>
A swap operation is the following sequence of actions:
* choose two indexes... | instruction | 0 | 72,866 | 12 | 145,732 |
No | output | 1 | 72,866 | 12 | 145,733 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As usual, Sereja has array a, its elements are integers: a[1], a[2], ..., a[n]. Let's introduce notation:
<image>
A swap operation is the following sequence of actions:
* choose two indexes... | instruction | 0 | 72,867 | 12 | 145,734 |
No | output | 1 | 72,867 | 12 | 145,735 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As usual, Sereja has array a, its elements are integers: a[1], a[2], ..., a[n]. Let's introduce notation:
<image>
A swap operation is the following sequence of actions:
* choose two indexes... | instruction | 0 | 72,868 | 12 | 145,736 |
No | output | 1 | 72,868 | 12 | 145,737 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As usual, Sereja has array a, its elements are integers: a[1], a[2], ..., a[n]. Let's introduce notation:
<image>
A swap operation is the following sequence of actions:
* choose two indexes... | instruction | 0 | 72,869 | 12 | 145,738 |
No | output | 1 | 72,869 | 12 | 145,739 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
After bracket sequences Arthur took up number theory. He has got a new favorite sequence of length n (a1, a2, ..., an), consisting of integers and integer k, not exceeding n.
This sequence had ... | instruction | 0 | 72,895 | 12 | 145,790 |
No | output | 1 | 72,895 | 12 | 145,791 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
After bracket sequences Arthur took up number theory. He has got a new favorite sequence of length n (a1, a2, ..., an), consisting of integers and integer k, not exceeding n.
This sequence had ... | instruction | 0 | 72,896 | 12 | 145,792 |
No | output | 1 | 72,896 | 12 | 145,793 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
After bracket sequences Arthur took up number theory. He has got a new favorite sequence of length n (a1, a2, ..., an), consisting of integers and integer k, not exceeding n.
This sequence had ... | instruction | 0 | 72,897 | 12 | 145,794 |
No | output | 1 | 72,897 | 12 | 145,795 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
After bracket sequences Arthur took up number theory. He has got a new favorite sequence of length n (a1, a2, ..., an), consisting of integers and integer k, not exceeding n.
This sequence had ... | instruction | 0 | 72,898 | 12 | 145,796 |
No | output | 1 | 72,898 | 12 | 145,797 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You've got array A, consisting of n integers and a positive integer k. Array A is indexed by integers from 1 to n.
You need to permute the array elements so that value
<image> became minimal possible. In particular, it is allowed not to c... | instruction | 0 | 72,904 | 12 | 145,808 |
Tags: dp, greedy, sortings
Correct Solution:
```
def solve(n, k, As):
As.sort()
m, r = divmod(n, k)
dp = [0] * (r + 1)
for i in range(1, k):
im = i * m
new_dp = [0] * (r + 1)
new_dp[0] = dp[0] + As[im] - As[im - 1]
for h in range(1, min(i, r) + 1):
new_dp[h] =... | output | 1 | 72,904 | 12 | 145,809 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You've got array A, consisting of n integers and a positive integer k. Array A is indexed by integers from 1 to n.
You need to permute the array elements so that value
<image> became minimal possible. In particular, it is allowed not to c... | instruction | 0 | 72,905 | 12 | 145,810 |
Tags: dp, greedy, sortings
Correct Solution:
```
f = lambda: map(int, input().split())
n, k = f()
p = sorted(f())
m, d = n // k, n % k
u, v = d + 1, k - d + 1
g = [0] * u * v
i = 0
for a in range(u):
j = a * m + a - 1
for b in range(v):
x = g[i - 1] + p[j] - p[j - m + 1] if b else 9e9
y = g[i ... | output | 1 | 72,905 | 12 | 145,811 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You've got array A, consisting of n integers and a positive integer k. Array A is indexed by integers from 1 to n.
You need to permute the array elements so that value
<image> became minimal possible. In particular, it is allowed not to c... | instruction | 0 | 72,906 | 12 | 145,812 |
Tags: dp, greedy, sortings
Correct Solution:
```
inf = 10 ** 10
n, k = map(int, input().split())
a = sorted(map(int, input().split()))
L, M = n // k, n % k
dp = [[0] * (k - M + 1) for i in range(M + 1)]
for i in range(M + 1):
for j in range(k - M + 1):
pos = i * (L + 1) + j * L
dp[i][j] = min((dp[i ... | output | 1 | 72,906 | 12 | 145,813 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You've got array A, consisting of n integers and a positive integer k. Array A is indexed by integers from 1 to n.
You need to permute the array elements so that value
<image> became minimal possible. In particular, it is allowed not to c... | instruction | 0 | 72,907 | 12 | 145,814 |
Tags: dp, greedy, sortings
Correct Solution:
```
INF = 10 ** 18 + 179
[n, k], a = [list(map(int, input().split())) for x in range(2)]
a.sort()
dp, l = [[0] * (k - n % k + 1) for x in range(n % k + 1)], n // k
for i in range(n % k + 1):
for j in range(k - n % k + 1):
pos = i * (l + 1) + j * l
dp[i][j... | output | 1 | 72,907 | 12 | 145,815 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You've got array A, consisting of n integers and a positive integer k. Array A is indexed by integers from 1 to n.
You need to permute the array elements so that value
<image> became minimal ... | instruction | 0 | 72,908 | 12 | 145,816 |
No | output | 1 | 72,908 | 12 | 145,817 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You've got array A, consisting of n integers and a positive integer k. Array A is indexed by integers from 1 to n.
You need to permute the array elements so that value
<image> became minimal ... | instruction | 0 | 72,909 | 12 | 145,818 |
No | output | 1 | 72,909 | 12 | 145,819 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You've got array A, consisting of n integers and a positive integer k. Array A is indexed by integers from 1 to n.
You need to permute the array elements so that value
<image> became minimal ... | instruction | 0 | 72,910 | 12 | 145,820 |
No | output | 1 | 72,910 | 12 | 145,821 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You've got array A, consisting of n integers and a positive integer k. Array A is indexed by integers from 1 to n.
You need to permute the array elements so that value
<image> became minimal ... | instruction | 0 | 72,911 | 12 | 145,822 |
No | output | 1 | 72,911 | 12 | 145,823 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Yash is finally tired of computing the length of the longest Fibonacci-ish sequence. He now plays around with more complex things such as Fibonacci-ish potentials.
Fibonacci-ish potential of a... | instruction | 0 | 72,933 | 12 | 145,866 |
No | output | 1 | 72,933 | 12 | 145,867 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Yash is finally tired of computing the length of the longest Fibonacci-ish sequence. He now plays around with more complex things such as Fibonacci-ish potentials.
Fibonacci-ish potential of a... | instruction | 0 | 72,934 | 12 | 145,868 |
No | output | 1 | 72,934 | 12 | 145,869 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a table consisting of n rows and m columns. Each cell of the table contains either 0 or 1. In one move, you are allowed to pick any row or any column and invert all values, that is... | instruction | 0 | 72,935 | 12 | 145,870 |
No | output | 1 | 72,935 | 12 | 145,871 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a permutation p_1,p_2,...,p_N consisting of 1,2,..,N. You can perform the following operation any number of times (possibly zero):
Operation: Swap two adjacent elements in the permutation.
You want to have p_i ≠ i for all 1≤i≤N. Find ... | instruction | 0 | 73,167 | 12 | 146,334 |
"Correct Solution:
```
n=int(input())
p=[int(i) for i in input().split()]
cnt=0
for i in range(n-1):
if p[i]==i+1:
p[i],p[i+1]=p[i+1],p[i]
cnt+=1
if p[-1]==n:cnt+=1
print(cnt)
``` | output | 1 | 73,167 | 12 | 146,335 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a permutation p_1,p_2,...,p_N consisting of 1,2,..,N. You can perform the following operation any number of times (possibly zero):
Operation: Swap two adjacent elements in the permutation.
You want to have p_i ≠ i for all 1≤i≤N. Find ... | instruction | 0 | 73,168 | 12 | 146,336 |
"Correct Solution:
```
N=int(input())
k=0
s=0
m=0
L=list(map(int,input().split()))
for i in range(N):
if L[i]==i+1:
m+=1
else:
s+=m//2+m%2
m=0
s+=m//2+m%2
print(s)
``` | output | 1 | 73,168 | 12 | 146,337 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a permutation p_1,p_2,...,p_N consisting of 1,2,..,N. You can perform the following operation any number of times (possibly zero):
Operation: Swap two adjacent elements in the permutation.
You want to have p_i ≠ i for all 1≤i≤N. Find ... | instruction | 0 | 73,169 | 12 | 146,338 |
"Correct Solution:
```
n=int(input())
p=list(map(int,input().split()))
c=0
def swap(i):
global c
t=p[i+1]
p[i+1]=p[i]
p[i]=t
c+=1
for i in range(n-1):
if p[i]==i+1:swap(i)
print(c+(p[n-1]==n))
``` | output | 1 | 73,169 | 12 | 146,339 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a permutation p_1,p_2,...,p_N consisting of 1,2,..,N. You can perform the following operation any number of times (possibly zero):
Operation: Swap two adjacent elements in the permutation.
You want to have p_i ≠ i for all 1≤i≤N. Find ... | instruction | 0 | 73,170 | 12 | 146,340 |
"Correct Solution:
```
N = int(input())
P = list(map(lambda p: int(p) - 1, input().split()))
i, ans = 0, 0
while i < N:
if P[i] == i:
ans += 1
i += 1
i += 1
print(ans)
``` | output | 1 | 73,170 | 12 | 146,341 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a permutation p_1,p_2,...,p_N consisting of 1,2,..,N. You can perform the following operation any number of times (possibly zero):
Operation: Swap two adjacent elements in the permutation.
You want to have p_i ≠ i for all 1≤i≤N. Find ... | instruction | 0 | 73,171 | 12 | 146,342 |
"Correct Solution:
```
N = int(input())
P = list(map(int, input().split()))
i, count = 0, 0
while i < N:
#print(i, i + 1, P[i])
if i + 1 == P[i]:
count += 1
i += 2
else:
i += 1
print(count)
``` | output | 1 | 73,171 | 12 | 146,343 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a permutation p_1,p_2,...,p_N consisting of 1,2,..,N. You can perform the following operation any number of times (possibly zero):
Operation: Swap two adjacent elements in the permutation.
You want to have p_i ≠ i for all 1≤i≤N. Find ... | instruction | 0 | 73,172 | 12 | 146,344 |
"Correct Solution:
```
n = int(input())
p = list(map(int, input().split()))
ans = 0
i = 0
while i<n:
if p[i]==i+1:
ans += 1
i += 1
i += 1
print(ans)
``` | output | 1 | 73,172 | 12 | 146,345 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a permutation p_1,p_2,...,p_N consisting of 1,2,..,N. You can perform the following operation any number of times (possibly zero):
Operation: Swap two adjacent elements in the permutation.
You want to have p_i ≠ i for all 1≤i≤N. Find ... | instruction | 0 | 73,173 | 12 | 146,346 |
"Correct Solution:
```
n=int(input())
p=list(map(int,input().split()))
r=p[:]
ans=0
for i in range(n):
if p[i]==i+1:
ans+=1
if i!=n-1:
p[i]=r[i+1]
p[i+1]=r[i]
print(ans)
``` | output | 1 | 73,173 | 12 | 146,347 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a permutation p_1,p_2,...,p_N consisting of 1,2,..,N. You can perform the following operation any number of times (possibly zero):
Operation: Swap two adjacent elements in the permutation.
You want to have p_i ≠ i for all 1≤i≤N. Find ... | instruction | 0 | 73,174 | 12 | 146,348 |
"Correct Solution:
```
N=int(input())
P=[int(x)-1 for x in input().split()]
T=[0]*N
for i in range(N):
if P[i]==i:
T[i]=1
for i in range(1,N):
if T[i]==T[i-1]==1:
T[i]=0
print(sum(T))
``` | output | 1 | 73,174 | 12 | 146,349 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a permutation p_1,p_2,...,p_N consisting of 1,2,..,N. You can perform the following operation any number of times (possibly zero):
Operation: Swap two adjacent elements in the per... | instruction | 0 | 73,175 | 12 | 146,350 |
Yes | output | 1 | 73,175 | 12 | 146,351 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a permutation p_1,p_2,...,p_N consisting of 1,2,..,N. You can perform the following operation any number of times (possibly zero):
Operation: Swap two adjacent elements in the per... | instruction | 0 | 73,176 | 12 | 146,352 |
Yes | output | 1 | 73,176 | 12 | 146,353 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a permutation p_1,p_2,...,p_N consisting of 1,2,..,N. You can perform the following operation any number of times (possibly zero):
Operation: Swap two adjacent elements in the per... | instruction | 0 | 73,177 | 12 | 146,354 |
Yes | output | 1 | 73,177 | 12 | 146,355 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a permutation p_1,p_2,...,p_N consisting of 1,2,..,N. You can perform the following operation any number of times (possibly zero):
Operation: Swap two adjacent elements in the per... | instruction | 0 | 73,178 | 12 | 146,356 |
Yes | output | 1 | 73,178 | 12 | 146,357 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a permutation p_1,p_2,...,p_N consisting of 1,2,..,N. You can perform the following operation any number of times (possibly zero):
Operation: Swap two adjacent elements in the per... | instruction | 0 | 73,179 | 12 | 146,358 |
No | output | 1 | 73,179 | 12 | 146,359 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a permutation p_1,p_2,...,p_N consisting of 1,2,..,N. You can perform the following operation any number of times (possibly zero):
Operation: Swap two adjacent elements in the per... | instruction | 0 | 73,180 | 12 | 146,360 |
No | output | 1 | 73,180 | 12 | 146,361 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a permutation p_1,p_2,...,p_N consisting of 1,2,..,N. You can perform the following operation any number of times (possibly zero):
Operation: Swap two adjacent elements in the per... | instruction | 0 | 73,181 | 12 | 146,362 |
No | output | 1 | 73,181 | 12 | 146,363 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a permutation p_1,p_2,...,p_N consisting of 1,2,..,N. You can perform the following operation any number of times (possibly zero):
Operation: Swap two adjacent elements in the per... | instruction | 0 | 73,182 | 12 | 146,364 |
No | output | 1 | 73,182 | 12 | 146,365 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A permutation of length k is a sequence of k integers from 1 to k containing each integer exactly once. For example, the sequence [3, 1, 2] is a permutation of length 3.
When Neko was five, he thought of an array a of n positive integers an... | instruction | 0 | 73,383 | 12 | 146,766 |
Tags: constructive algorithms, dfs and similar, graphs
Correct Solution:
```
class multiset:
def __init__(self):
self.contenido = dict()
self.len = 0
def add(self, x):
self.contenido[x] = self.contenido.get(x, 0)+1
self.len += 1
def remove(self, x):
valor = self.contenido.get(x, 1)-1
if valor == 0:
... | output | 1 | 73,383 | 12 | 146,767 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A permutation of length k is a sequence of k integers from 1 to k containing each integer exactly once. For example, the sequence [3, 1, 2] is a permutation of length 3.
When Neko was five, he thought of an array a of n positive integers an... | instruction | 0 | 73,384 | 12 | 146,768 |
Tags: constructive algorithms, dfs and similar, graphs
Correct Solution:
```
class multiset:
def __init__(self):
self.items = dict()
self.len = 0
def add(self, it):
self.items[it] = self.items.get(it,0) + 1
self.len += 1
def remove(self, it):
it_value = self... | output | 1 | 73,384 | 12 | 146,769 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A permutation of length k is a sequence of k integers from 1 to k containing each integer exactly once. For example, the sequence [3, 1, 2] is a permutation of length 3.
When Neko was five, he thought of an array a of n positive integers an... | instruction | 0 | 73,385 | 12 | 146,770 |
Tags: constructive algorithms, dfs and similar, graphs
Correct Solution:
```
from collections import defaultdict, Counter
from sys import exit
N = int(input())
B = list(map(int, input().split()))
C = list(map(int, input().split()))
Edge = defaultdict(list)
Edc = defaultdict(int)
for b, c in zip(B, C):
if b > c:
... | output | 1 | 73,385 | 12 | 146,771 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A permutation of length k is a sequence of k integers from 1 to k containing each integer exactly once. For example, the sequence [3, 1, 2] is a permutation of length 3.
When Neko was five, he ... | instruction | 0 | 73,386 | 12 | 146,772 |
No | output | 1 | 73,386 | 12 | 146,773 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A permutation of length k is a sequence of k integers from 1 to k containing each integer exactly once. For example, the sequence [3, 1, 2] is a permutation of length 3.
When Neko was five, he ... | instruction | 0 | 73,387 | 12 | 146,774 |
No | output | 1 | 73,387 | 12 | 146,775 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A permutation of length k is a sequence of k integers from 1 to k containing each integer exactly once. For example, the sequence [3, 1, 2] is a permutation of length 3.
When Neko was five, he ... | instruction | 0 | 73,388 | 12 | 146,776 |
No | output | 1 | 73,388 | 12 | 146,777 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A permutation of length k is a sequence of k integers from 1 to k containing each integer exactly once. For example, the sequence [3, 1, 2] is a permutation of length 3.
When Neko was five, he ... | instruction | 0 | 73,389 | 12 | 146,778 |
No | output | 1 | 73,389 | 12 | 146,779 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Little Petya likes to play very much. And most of all he likes to play the following game:
He is given a sequence of N integer numbers. At each step it is allowed to increase the value of any number by 1 or to decrease it by 1. The goal of ... | instruction | 0 | 73,522 | 12 | 147,044 |
Tags: dp, sortings
Correct Solution:
```
import heapq
input()
ans=0
a=[]
inf=10**9
for x in map(int,input().split()):
x=inf-x
heapq.heappush(a,x)
ans+=a[0]-x
heapq.heappop(a)
heapq.heappush(a,x)
print(-ans)
``` | output | 1 | 73,522 | 12 | 147,045 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Little Petya likes to play very much. And most of all he likes to play the following game:
He is given a sequence of N integer numbers. At each step it is allowed to increase the value of any number by 1 or to decrease it by 1. The goal of ... | instruction | 0 | 73,523 | 12 | 147,046 |
Tags: dp, sortings
Correct Solution:
```
from bisect import insort
def min_steps_N(arr):
pri_q = []
ans = 0
for n in arr:
if pri_q:
if pri_q[-1] > n:
ans += pri_q[-1] - n
pri_q.pop()
insort(pri_q, n)
insort(pri_q, n)
return ans... | output | 1 | 73,523 | 12 | 147,047 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A permutation is a sequence of integers from 1 to n of length n containing each number exactly once. For example, [1], [4, 3, 5, 1, 2], [3, 2, 1] — are permutations, and [1, 1], [4, 3, 1], [2, 3, 4] — no.
Permutation a is lexicographically ... | instruction | 0 | 73,528 | 12 | 147,056 |
Tags: brute force, math, two pointers
Correct Solution:
```
import io,os;from math import *;input = io.BytesIO(os.read(0,os.fstat(0).st_size)).readline
manual = 20;n,Q = map(int,input().split());after = min(manual, n);before = n -after;ind = 0
def unrankperm(i):
unused = [i+1 for i in range(after)];r = []
for j in ra... | output | 1 | 73,528 | 12 | 147,057 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A permutation is a sequence of integers from 1 to n of length n containing each number exactly once. For example, [1], [4, 3, 5, 1, 2], [3, 2, 1] — are permutations, and [1, 1], [4, 3, 1], [2, 3, 4] — no.
Permutation a is lexicographically ... | instruction | 0 | 73,529 | 12 | 147,058 |
Tags: brute force, math, two pointers
Correct Solution:
```
import sys
input = sys.stdin.readline
n,q=map(int,input().split())
X=list(range(1,n+1))
S=[0]
for x in X:
S.append(S[-1]+x)
FACT=[1,1]
for i in range(2,16):
FACT.append(FACT[-1]*i)
A=X[-15:]
LEN=len(A)
def calc(x):
AA=[a for a in A]
ANS... | output | 1 | 73,529 | 12 | 147,059 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A permutation is a sequence of integers from 1 to n of length n containing each number exactly once. For example, [1], [4, 3, 5, 1, 2], [3, 2, 1] — are permutations, and [1, 1], [4, 3, 1], [2, 3, 4] — no.
Permutation a is lexicographically ... | instruction | 0 | 73,530 | 12 | 147,060 |
Tags: brute force, math, two pointers
Correct Solution:
```
import io,os
input = io.BytesIO(os.read(0, os.fstat(0).st_size)).readline
import bisect
factor = [1, 2, 6, 24, 120, 720, 5040, 40320, 362880, 3628800, 39916800, 479001600, 6227020800, 87178291200]
n,q = map(int,input().split())
def getpermute(x,n):
m = b... | output | 1 | 73,530 | 12 | 147,061 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A permutation is a sequence of integers from 1 to n of length n containing each number exactly once. For example, [1], [4, 3, 5, 1, 2], [3, 2, 1] — are permutations, and [1, 1], [4, 3, 1], [2, 3, 4] — no.
Permutation a is lexicographically ... | instruction | 0 | 73,531 | 12 | 147,062 |
Tags: brute force, math, two pointers
Correct Solution:
```
import io,os
from math import *
input = io.BytesIO(os.read(0,os.fstat(0).st_size)).readline
n, q = list(map(int, input().split()))
after = min(15, n)
before = n - after
def perm(i):
unused = [i + 1 for i in range(after)]
arr = []
for j in revers... | output | 1 | 73,531 | 12 | 147,063 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A permutation is a sequence of integers from 1 to n of length n containing each number exactly once. For example, [1], [4, 3, 5, 1, 2], [3, 2, 1] — are permutations, and [1, 1], [4, 3, 1], [2, 3, 4] — no.
Permutation a is lexicographically ... | instruction | 0 | 73,532 | 12 | 147,064 |
Tags: brute force, math, two pointers
Correct Solution:
```
import sys
input=sys.stdin.readline
fact=[1]
for i in range(1,15+1):
fact.append(fact[-1]*i)
def generate_perm(n,m):
ret=[]
if n<=15:
cand=[i+1 for i in range(n)]
else:
cand=[i+1 for i in range(n-15,n)]
for i in range(1,mi... | output | 1 | 73,532 | 12 | 147,065 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A permutation is a sequence of integers from 1 to n of length n containing each number exactly once. For example, [1], [4, 3, 5, 1, 2], [3, 2, 1] — are permutations, and [1, 1], [4, 3, 1], [2, 3, 4] — no.
Permutation a is lexicographically ... | instruction | 0 | 73,533 | 12 | 147,066 |
Tags: brute force, math, two pointers
Correct Solution:
```
n, q = map(int, input().split())
A = [i for i in range(1, n + 1)]
prefix = [0] * (n + 1)
prefix[0] = A[0]
for i in range(1, n):
prefix[i] = prefix[i - 1] + A[i]
used0 = A[max(0, n - 15)::]
used0.sort()
used_d = {}
for i in used0:
used_d[i] = 0
... | output | 1 | 73,533 | 12 | 147,067 |
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