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 |
|---|---|---|---|---|---|
Provide tags and a correct Python 3 solution for this coding contest problem.
Xenia the beginner programmer has a sequence a, consisting of 2n non-negative integers: a1, a2, ..., a2n. Xenia is currently studying bit operations. To better understand how they work, Xenia decided to calculate some value v for a.
Namely,... | instruction | 0 | 10,299 | 12 | 20,598 |
Tags: data structures, trees
Correct Solution:
```
# lista[0] 0 1 2 3 4 5 6 7
# lista[1] 0 1 2 3
# lista[2] 0 1
# lista[3] 0
from sys import stdin
def ler():
for line in stdin:
yield line.rstrip()
def criar(lista_inicial, altura):
arvore = [lista_inicial]
i = 0
t = 2**alt... | output | 1 | 10,299 | 12 | 20,599 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Xenia the beginner programmer has a sequence a, consisting of 2n non-negative integers: a1, a2, ..., a2n. Xenia is currently studying bit operations. To better understand how they work, Xenia decided to calculate some value v for a.
Namely,... | instruction | 0 | 10,300 | 12 | 20,600 |
Tags: data structures, trees
Correct Solution:
```
from operator import or_, xor
import sys
n, m = map(int, input().split())
t = [list(map(int, input().split()))]
for i in range(n):
t += [[(or_, xor)[i & 1](*t[i][j: j + 2]) for j in range(0, len(t[i]), 2)]]
for s in sys.stdin:
p, b = s.split()
p = int(p)... | output | 1 | 10,300 | 12 | 20,601 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Xenia the beginner programmer has a sequence a, consisting of 2n non-negative integers: a1, a2, ..., a2n. Xenia is currently studying bit operations. To better understand how they work, Xenia decided to calculate some value v for a.
Namely,... | instruction | 0 | 10,301 | 12 | 20,602 |
Tags: data structures, trees
Correct Solution:
```
import sys,os,io
from sys import stdin
if(os.path.exists('input.txt')):
sys.stdin = open("input.txt","r") ; sys.stdout = open("output.txt","w")
else:
input = io.BytesIO(os.read(0, os.fstat(0).st_size)).readline
def powerof2(n):
while n>1:
if n%2:
... | output | 1 | 10,301 | 12 | 20,603 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Xenia the beginner programmer has a sequence a, consisting of 2n non-negative integers: a1, a2, ..., a2n. Xenia is currently studying bit operations. To better understand how they work, Xenia de... | instruction | 0 | 10,302 | 12 | 20,604 |
Yes | output | 1 | 10,302 | 12 | 20,605 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Xenia the beginner programmer has a sequence a, consisting of 2n non-negative integers: a1, a2, ..., a2n. Xenia is currently studying bit operations. To better understand how they work, Xenia de... | instruction | 0 | 10,303 | 12 | 20,606 |
Yes | output | 1 | 10,303 | 12 | 20,607 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Xenia the beginner programmer has a sequence a, consisting of 2n non-negative integers: a1, a2, ..., a2n. Xenia is currently studying bit operations. To better understand how they work, Xenia de... | instruction | 0 | 10,304 | 12 | 20,608 |
Yes | output | 1 | 10,304 | 12 | 20,609 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Xenia the beginner programmer has a sequence a, consisting of 2n non-negative integers: a1, a2, ..., a2n. Xenia is currently studying bit operations. To better understand how they work, Xenia de... | instruction | 0 | 10,305 | 12 | 20,610 |
Yes | output | 1 | 10,305 | 12 | 20,611 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Xenia the beginner programmer has a sequence a, consisting of 2n non-negative integers: a1, a2, ..., a2n. Xenia is currently studying bit operations. To better understand how they work, Xenia de... | instruction | 0 | 10,306 | 12 | 20,612 |
No | output | 1 | 10,306 | 12 | 20,613 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Xenia the beginner programmer has a sequence a, consisting of 2n non-negative integers: a1, a2, ..., a2n. Xenia is currently studying bit operations. To better understand how they work, Xenia de... | instruction | 0 | 10,307 | 12 | 20,614 |
No | output | 1 | 10,307 | 12 | 20,615 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Xenia the beginner programmer has a sequence a, consisting of 2n non-negative integers: a1, a2, ..., a2n. Xenia is currently studying bit operations. To better understand how they work, Xenia de... | instruction | 0 | 10,308 | 12 | 20,616 |
No | output | 1 | 10,308 | 12 | 20,617 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Xenia the beginner programmer has a sequence a, consisting of 2n non-negative integers: a1, a2, ..., a2n. Xenia is currently studying bit operations. To better understand how they work, Xenia de... | instruction | 0 | 10,309 | 12 | 20,618 |
No | output | 1 | 10,309 | 12 | 20,619 |
Provide a correct Python 3 solution for this coding contest problem.
Given is a permutation P of \\{1, 2, \ldots, N\\}.
For a pair (L, R) (1 \le L \lt R \le N), let X_{L, R} be the second largest value among P_L, P_{L+1}, \ldots, P_R.
Find \displaystyle \sum_{L=1}^{N-1} \sum_{R=L+1}^{N} X_{L,R}.
Constraints
* 2 \l... | instruction | 0 | 10,566 | 12 | 21,132 |
"Correct Solution:
```
import heapq
from collections import defaultdict
N = int(input())
P = list(map(int,input().split()))
d_r = defaultdict(lambda:N+1)
h_r = []
d_r2 = defaultdict(lambda:N+1)
h_r2 = []
for i in range(N):
p = P[i]
while h_r2:
q = heapq.heappop(h_r2)
if q < p:
d_r2[... | output | 1 | 10,566 | 12 | 21,133 |
Provide a correct Python 3 solution for this coding contest problem.
Given is a permutation P of \\{1, 2, \ldots, N\\}.
For a pair (L, R) (1 \le L \lt R \le N), let X_{L, R} be the second largest value among P_L, P_{L+1}, \ldots, P_R.
Find \displaystyle \sum_{L=1}^{N-1} \sum_{R=L+1}^{N} X_{L,R}.
Constraints
* 2 \l... | instruction | 0 | 10,567 | 12 | 21,134 |
"Correct Solution:
```
def argsort(a):
return list(map(lambda z: z[1], sorted(zip(a, range(len(a))))))
N = int(input())
P = list(map(int, input().split()))
a = argsort(P)
left = [i for i in range(N)]
right = [i for i in range(N)]
result = 0
for i in range(1, N):
k = a[i - 1]
extend_left = k - 1 >= 0 and P... | output | 1 | 10,567 | 12 | 21,135 |
Provide a correct Python 3 solution for this coding contest problem.
Given is a permutation P of \\{1, 2, \ldots, N\\}.
For a pair (L, R) (1 \le L \lt R \le N), let X_{L, R} be the second largest value among P_L, P_{L+1}, \ldots, P_R.
Find \displaystyle \sum_{L=1}^{N-1} \sum_{R=L+1}^{N} X_{L,R}.
Constraints
* 2 \l... | instruction | 0 | 10,568 | 12 | 21,136 |
"Correct Solution:
```
import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines
from operator import itemgetter
n = int(readline())
ppp = list(map(int,readline().split()))
def BIT_add(i,x):
while i <= n:
tree[i] += x
i += i&(-i)
def BIT_s... | output | 1 | 10,568 | 12 | 21,137 |
Provide a correct Python 3 solution for this coding contest problem.
Given is a permutation P of \\{1, 2, \ldots, N\\}.
For a pair (L, R) (1 \le L \lt R \le N), let X_{L, R} be the second largest value among P_L, P_{L+1}, \ldots, P_R.
Find \displaystyle \sum_{L=1}^{N-1} \sum_{R=L+1}^{N} X_{L,R}.
Constraints
* 2 \l... | instruction | 0 | 10,570 | 12 | 21,140 |
"Correct Solution:
```
def solve():
N = int(input())
Ps = list(map(int, input().split()))
def makeBIT(numEle):
numPow2 = 2 ** (numEle-1).bit_length()
data = [0] * (numPow2+1)
return data, numPow2
def addValue(iA, A):
iB = iA + 1
while iB <= numPow2:
d... | output | 1 | 10,570 | 12 | 21,141 |
Provide a correct Python 3 solution for this coding contest problem.
Given is a permutation P of \\{1, 2, \ldots, N\\}.
For a pair (L, R) (1 \le L \lt R \le N), let X_{L, R} be the second largest value among P_L, P_{L+1}, \ldots, P_R.
Find \displaystyle \sum_{L=1}^{N-1} \sum_{R=L+1}^{N} X_{L,R}.
Constraints
* 2 \l... | instruction | 0 | 10,571 | 12 | 21,142 |
"Correct Solution:
```
import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines
from operator import itemgetter
n = int(readline())
ppp = list(map(int,readline().split()))
class Bit:
def __init__(self, n):
self.size = n
self.tree = [0] * (... | output | 1 | 10,571 | 12 | 21,143 |
Provide a correct Python 3 solution for this coding contest problem.
Given is a permutation P of \\{1, 2, \ldots, N\\}.
For a pair (L, R) (1 \le L \lt R \le N), let X_{L, R} be the second largest value among P_L, P_{L+1}, \ldots, P_R.
Find \displaystyle \sum_{L=1}^{N-1} \sum_{R=L+1}^{N} X_{L,R}.
Constraints
* 2 \l... | instruction | 0 | 10,572 | 12 | 21,144 |
"Correct Solution:
```
class SparseTable:
def __init__(self, a, func=max, one=-10**18):
self.table = [a[:]]
self.n = len(a)
self.logn = self.n.bit_length()
self.func = func
self.one = one
for i in map(lambda x: 1 << x, range(self.logn - 1)):
self.table.ap... | output | 1 | 10,572 | 12 | 21,145 |
Provide a correct Python 3 solution for this coding contest problem.
Given is a permutation P of \\{1, 2, \ldots, N\\}.
For a pair (L, R) (1 \le L \lt R \le N), let X_{L, R} be the second largest value among P_L, P_{L+1}, \ldots, P_R.
Find \displaystyle \sum_{L=1}^{N-1} \sum_{R=L+1}^{N} X_{L,R}.
Constraints
* 2 \l... | instruction | 0 | 10,573 | 12 | 21,146 |
"Correct Solution:
```
class BinaryIndexedTree:
def __init__(self, size):
self.data = [0] * (size+1)
self.msb = 1 << (size.bit_length()-1)
def add(self, i, w):
i += 1
while i < len(self.data):
self.data[i] += w
i += i & -i
def get_sum(self, i... | output | 1 | 10,573 | 12 | 21,147 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Given is a permutation P of \\{1, 2, \ldots, N\\}.
For a pair (L, R) (1 \le L \lt R \le N), let X_{L, R} be the second largest value among P_L, P_{L+1}, \ldots, P_R.
Find \displaystyle \sum_{L... | instruction | 0 | 10,576 | 12 | 21,152 |
Yes | output | 1 | 10,576 | 12 | 21,153 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a sequence (P_1,P_2,...,P_N) which is a permutation of the integers from 1 through N. You would like to sort this sequence in ascending order by repeating the following operation:
* Choose an element in the sequence and move it to the ... | instruction | 0 | 10,608 | 12 | 21,216 |
"Correct Solution:
```
N = int(input())
P = [int(input()) for _ in range(N)]
K = [0]*(N+1)
for p in P:
K[p] = K[p-1] + 1
print(N - max(K))
``` | output | 1 | 10,608 | 12 | 21,217 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a sequence (P_1,P_2,...,P_N) which is a permutation of the integers from 1 through N. You would like to sort this sequence in ascending order by repeating the following operation:
* Choose an element in the sequence and move it to the ... | instruction | 0 | 10,609 | 12 | 21,218 |
"Correct Solution:
```
n = int(input())
P = [int(input()) for _ in range(n)]
Q = [0]*(n+1)
for i, j in enumerate(P):
Q[j-1] = i+1
count = 0
m = 0
for i in range(n):
count += 1
if Q[i] > Q[i+1]:
m = max(m, count)
count = 0
print(n-m)
``` | output | 1 | 10,609 | 12 | 21,219 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a sequence (P_1,P_2,...,P_N) which is a permutation of the integers from 1 through N. You would like to sort this sequence in ascending order by repeating the following operation:
* Choose an element in the sequence and move it to the ... | instruction | 0 | 10,610 | 12 | 21,220 |
"Correct Solution:
```
n=int(input())
l=[0]*n
for i in range(n):
l[int(input())-1]=i
pre=-1
now=0
ans=n
for i in l:
if pre<i:
now+=1
else:
ans=min(ans,n-now)
now=1
pre=i
print(min(ans,n-now))
``` | output | 1 | 10,610 | 12 | 21,221 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a sequence (P_1,P_2,...,P_N) which is a permutation of the integers from 1 through N. You would like to sort this sequence in ascending order by repeating the following operation:
* Choose an element in the sequence and move it to the ... | instruction | 0 | 10,611 | 12 | 21,222 |
"Correct Solution:
```
N = int(input())
P = [int(input()) for _ in range(N)]
dp = [0 for _ in range(N+1)]
for p in P:
dp[p] = dp[p-1]+1
print(N-max(dp))
``` | output | 1 | 10,611 | 12 | 21,223 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a sequence (P_1,P_2,...,P_N) which is a permutation of the integers from 1 through N. You would like to sort this sequence in ascending order by repeating the following operation:
* Choose an element in the sequence and move it to the ... | instruction | 0 | 10,612 | 12 | 21,224 |
"Correct Solution:
```
import bisect
n = int(input())
p = [int(input()) for _ in range(n)]
idx = dict()
for i in range(n):
idx[p[i]] = i
c = 0
cnt = 1
for i in range(1, n):
if idx[i + 1] > idx[i]:
cnt += 1
else:
c = max(c, cnt)
cnt = 1
c = max(c, cnt)
print(n - c)
``` | output | 1 | 10,612 | 12 | 21,225 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a sequence (P_1,P_2,...,P_N) which is a permutation of the integers from 1 through N. You would like to sort this sequence in ascending order by repeating the following operation:
* Choose an element in the sequence and move it to the ... | instruction | 0 | 10,613 | 12 | 21,226 |
"Correct Solution:
```
n,*p=map(int,open(0))
s=[0]*-~n
for i in p:s[i]=s[i-1]+1
print(n-max(s))
``` | output | 1 | 10,613 | 12 | 21,227 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a sequence (P_1,P_2,...,P_N) which is a permutation of the integers from 1 through N. You would like to sort this sequence in ascending order by repeating the following operation:
* Choose an element in the sequence and move it to the ... | instruction | 0 | 10,614 | 12 | 21,228 |
"Correct Solution:
```
N=int(input())
P=[int(input())-1 for i in range(N)]
Q=[0 for i in range(N)]
for i in range(N):
Q[P[i]]=i
L=[1]
k=0
for i in range(1,N):
if Q[i-1]<Q[i]:
L[k]+=1
else:
L.append(0)
k+=1
L[k]+=1
print(N-max(L))
``` | output | 1 | 10,614 | 12 | 21,229 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a sequence (P_1,P_2,...,P_N) which is a permutation of the integers from 1 through N. You would like to sort this sequence in ascending order by repeating the following operation:
* Choose an element in the sequence and move it to the ... | instruction | 0 | 10,615 | 12 | 21,230 |
"Correct Solution:
```
N = int(input())
P = []
for i in range(N):
P.append(int(input()))
#print(P)
S = [0 for _ in range(N+1)]
for i in range(N):
S[P[i]] = S[P[i]-1] + 1
print(N-max(S))
``` | output | 1 | 10,615 | 12 | 21,231 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence (P_1,P_2,...,P_N) which is a permutation of the integers from 1 through N. You would like to sort this sequence in ascending order by repeating the following operation:
... | instruction | 0 | 10,616 | 12 | 21,232 |
Yes | output | 1 | 10,616 | 12 | 21,233 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence (P_1,P_2,...,P_N) which is a permutation of the integers from 1 through N. You would like to sort this sequence in ascending order by repeating the following operation:
... | instruction | 0 | 10,617 | 12 | 21,234 |
Yes | output | 1 | 10,617 | 12 | 21,235 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence (P_1,P_2,...,P_N) which is a permutation of the integers from 1 through N. You would like to sort this sequence in ascending order by repeating the following operation:
... | instruction | 0 | 10,618 | 12 | 21,236 |
Yes | output | 1 | 10,618 | 12 | 21,237 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence (P_1,P_2,...,P_N) which is a permutation of the integers from 1 through N. You would like to sort this sequence in ascending order by repeating the following operation:
... | instruction | 0 | 10,619 | 12 | 21,238 |
Yes | output | 1 | 10,619 | 12 | 21,239 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence (P_1,P_2,...,P_N) which is a permutation of the integers from 1 through N. You would like to sort this sequence in ascending order by repeating the following operation:
... | instruction | 0 | 10,620 | 12 | 21,240 |
No | output | 1 | 10,620 | 12 | 21,241 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence (P_1,P_2,...,P_N) which is a permutation of the integers from 1 through N. You would like to sort this sequence in ascending order by repeating the following operation:
... | instruction | 0 | 10,621 | 12 | 21,242 |
No | output | 1 | 10,621 | 12 | 21,243 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence (P_1,P_2,...,P_N) which is a permutation of the integers from 1 through N. You would like to sort this sequence in ascending order by repeating the following operation:
... | instruction | 0 | 10,622 | 12 | 21,244 |
No | output | 1 | 10,622 | 12 | 21,245 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given a sequence (P_1,P_2,...,P_N) which is a permutation of the integers from 1 through N. You would like to sort this sequence in ascending order by repeating the following operation:
... | instruction | 0 | 10,623 | 12 | 21,246 |
No | output | 1 | 10,623 | 12 | 21,247 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Suppose you are given a sequence S of k pairs of integers (a_1, b_1), (a_2, b_2), ..., (a_k, b_k).
You can perform the following operations on it:
1. Choose some position i and increase a_i ... | instruction | 0 | 10,814 | 12 | 21,628 |
No | output | 1 | 10,814 | 12 | 21,629 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Recently Lynyrd and Skynyrd went to a shop where Lynyrd bought a permutation p of length n, and Skynyrd bought an array a of length m, consisting of integers from 1 to n.
Lynyrd and Skynyrd became bored, so they asked you q queries, each o... | instruction | 0 | 10,863 | 12 | 21,726 |
Tags: data structures, dfs and similar, dp, math, trees
Correct Solution:
```
# 注意array cache順序 QQ
from math import log, floor
import sys
"""
class RMQ:
'''
maximum version rmq
query: max([l, r])
'''
def __init__(self, nums):
size = floor(log(len(nums)) // log(2)) + 1
self.nums... | output | 1 | 10,863 | 12 | 21,727 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Recently Lynyrd and Skynyrd went to a shop where Lynyrd bought a permutation p of length n, and Skynyrd bought an array a of length m, consisting of integers from 1 to n.
Lynyrd and Skynyrd became bored, so they asked you q queries, each o... | instruction | 0 | 10,864 | 12 | 21,728 |
Tags: data structures, dfs and similar, dp, math, trees
Correct Solution:
```
# 注意array cache順序 QQ
from math import log, floor
class RMQ:
'''
maximum version rmq
query: max([l, r])
'''
def __init__(self, nums):
size = floor(log(len(nums)) // log(2)) + 1
self.nums = [nums]
... | output | 1 | 10,864 | 12 | 21,729 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Recently Lynyrd and Skynyrd went to a shop where Lynyrd bought a permutation p of length n, and Skynyrd bought an array a of length m, consisting of integers from 1 to n.
Lynyrd and Skynyrd became bored, so they asked you q queries, each o... | instruction | 0 | 10,865 | 12 | 21,730 |
Tags: data structures, dfs and similar, dp, math, trees
Correct Solution:
```
# 注意array cache順序 QQ
from math import log, floor
"""
class RMQ:
'''
maximum version rmq
query: max([l, r])
'''
def __init__(self, nums):
size = floor(log(len(nums)) // log(2)) + 1
self.nums = [nums]
... | output | 1 | 10,865 | 12 | 21,731 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Ujan has a lot of numbers in his boxes. He likes order and balance, so he decided to reorder the numbers.
There are k boxes numbered from 1 to k. The i-th box contains n_i integer numbers. The integers can be negative. All of the integers a... | instruction | 0 | 10,875 | 12 | 21,750 |
Tags: bitmasks, dfs and similar, dp, graphs
Correct Solution:
```
import sys
reader = (s.rstrip() for s in sys.stdin)
input = reader.__next__
k = int(input())
d = {}
aa = []
sa = []
for i in range(k):
ni, *a = map(int, input().split())
for ai in a:
d[ai] = i
aa.append(a)
sa.append(sum(a))
s = ... | output | 1 | 10,875 | 12 | 21,751 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Ujan has a lot of numbers in his boxes. He likes order and balance, so he decided to reorder the numbers.
There are k boxes numbered from 1 to k. The i-th box contains n_i integer numbers. The ... | instruction | 0 | 10,876 | 12 | 21,752 |
No | output | 1 | 10,876 | 12 | 21,753 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let A = {a1, a2, ..., an} be any permutation of the first n natural numbers {1, 2, ..., n}. You are given a positive integer k and another sequence B = {b1, b2, ..., bn}, where bi is the number of elements aj in A to the left of the element ... | instruction | 0 | 11,239 | 12 | 22,478 |
Tags: greedy
Correct Solution:
```
s = input()
l = s.split()
n = int(l[0])
k = int(l[1])
s = input()
l = s.split()
b = [-1]
for i in range(1, n + 1):
b.append(int(l[i - 1]))
for i in range(1, n + 1):
j = 1
while b[j] != 0:
j += 1
b[j] -= 1
print(j, end = ' ')
for t in range(1, n ... | output | 1 | 11,239 | 12 | 22,479 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let A = {a1, a2, ..., an} be any permutation of the first n natural numbers {1, 2, ..., n}. You are given a positive integer k and another sequence B = {b1, b2, ..., bn}, where bi is the number of elements aj in A to the left of the element ... | instruction | 0 | 11,240 | 12 | 22,480 |
Tags: greedy
Correct Solution:
```
n, k = map(int, input().split())
b = list(map(int, input().split()))
taken = [False for i in range(n + 2)]
a = []
for i in range(n):
has = -1
for j in range(1, n + 1):
if not taken[j] and b[j - 1] == 0:
has = j
break
a.append... | output | 1 | 11,240 | 12 | 22,481 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let A = {a1, a2, ..., an} be any permutation of the first n natural numbers {1, 2, ..., n}. You are given a positive integer k and another sequence B = {b1, b2, ..., bn}, where bi is the number of elements aj in A to the left of the element ... | instruction | 0 | 11,241 | 12 | 22,482 |
Tags: greedy
Correct Solution:
```
# ========= /\ /| |====/|
# | / \ | | / |
# | /____\ | | / |
# | / \ | | / |
# ========= / \ ===== |/====|
# code
def main():
n,k = map(int,input().split())
a = list(map(int,input(... | output | 1 | 11,241 | 12 | 22,483 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let A = {a1, a2, ..., an} be any permutation of the first n natural numbers {1, 2, ..., n}. You are given a positive integer k and another sequence B = {b1, b2, ..., bn}, where bi is the number of elements aj in A to the left of the element ... | instruction | 0 | 11,242 | 12 | 22,484 |
Tags: greedy
Correct Solution:
```
# /*******************************************************************************
# * Author : Quantum Of Excellence
# * email : quantumofexcellence (at) gmail (dot) com
# * copyright : 2014 - 2015
# * date : 6 - 11 - 2015
# * Judge Status :
# * file name ... | output | 1 | 11,242 | 12 | 22,485 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given n integers a1, a2, ..., an. Find the number of pairs of indexes i, j (i < j) that ai + aj is a power of 2 (i. e. some integer x exists so that ai + aj = 2x).
Input
The first line... | instruction | 0 | 11,252 | 12 | 22,504 |
Yes | output | 1 | 11,252 | 12 | 22,505 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's assume that we have a pair of numbers (a, b). We can get a new pair (a + b, b) or (a, a + b) from the given pair in a single step.
Let the initial pair of numbers be (1,1). Your task is to find number k, that is, the least number of s... | instruction | 0 | 11,769 | 12 | 23,538 |
Tags: brute force, dfs and similar, math, number theory
Correct Solution:
```
n,ans=int(input()),1000000
for i in range(1, n+1):
k,a,b=0,n,i
while b>1:
k+=a//b
a,b=b,a%b
if b!=0: ans=min(ans, a-1+k)
print(ans)
``` | output | 1 | 11,769 | 12 | 23,539 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's assume that we have a pair of numbers (a, b). We can get a new pair (a + b, b) or (a, a + b) from the given pair in a single step.
Let the initial pair of numbers be (1,1). Your task is to find number k, that is, the least number of s... | instruction | 0 | 11,770 | 12 | 23,540 |
Tags: brute force, dfs and similar, math, number theory
Correct Solution:
```
import sys
def solve():
n = int(input())
if n == 1: return 0
res = 1000000
for other in range(n - 1, 0, -1):
pair = [n, other]
temp = 0
while (pair[0] > 1 or pair[1] > 1) and (pair[0] > 0 and pair[1] >... | output | 1 | 11,770 | 12 | 23,541 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Ashish has an array a of consisting of 2n positive integers. He wants to compress a into an array b of size n-1. To do this, he first discards exactly 2 (any two) elements from a. He then performs the following operation until there are no e... | instruction | 0 | 11,780 | 12 | 23,560 |
Tags: constructive algorithms, math, number theory
Correct Solution:
```
import math
t = int(input())
for _ in range(t):
n = int(input())
a = [int(i) for i in input().split()]
o = []
e = []
for i in range(2*n):
if a[i]%2 == 0:
e.append(i+1)
else:
... | output | 1 | 11,780 | 12 | 23,561 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Ashish has an array a of consisting of 2n positive integers. He wants to compress a into an array b of size n-1. To do this, he first discards exactly 2 (any two) elements from a. He then performs the following operation until there are no e... | instruction | 0 | 11,781 | 12 | 23,562 |
Tags: constructive algorithms, math, number theory
Correct Solution:
```
for i in range(int(input())):
n=int(input())
l=[int(num) for num in input().split()]
o,e=[],[]
b=0
for num in range(len(l)):
if(l[num]%2==0):
e.append(num+1)
else:
o.append(num+1)
while(b<n-1):
if(len(e)>1):
print(e.pop(),e.po... | output | 1 | 11,781 | 12 | 23,563 |
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