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.
You are given an array of integers b_1, b_2, …, b_n.
An array a_1, a_2, …, a_n of integers is hybrid if for each i (1 ≤ i ≤ n) at least one of these conditions is true:
* b_i = a_i, or
*... | instruction | 0 | 53,312 | 12 | 106,624 |
Yes | output | 1 | 53,312 | 12 | 106,625 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an array of integers b_1, b_2, …, b_n.
An array a_1, a_2, …, a_n of integers is hybrid if for each i (1 ≤ i ≤ n) at least one of these conditions is true:
* b_i = a_i, or
*... | instruction | 0 | 53,313 | 12 | 106,626 |
Yes | output | 1 | 53,313 | 12 | 106,627 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Eugeny has array a = a1, a2, ..., an, consisting of n integers. Each integer ai equals to -1, or to 1. Also, he has m queries:
* Query number i is given as a pair of integers li, ri (1 ≤ li ≤ ri ≤ n).
* The response to the query will b... | instruction | 0 | 53,379 | 12 | 106,758 |
Tags: implementation
Correct Solution:
```
#!/usr/bin/env python3
n, m = map(int, input().split())
a = input().split().count('1')
b = min(a, n - a) * 2
ans = []
for i in range(m):
l, r = map(int, input().split())
length = r - l + 1
ans += ['0'] if length % 2 or length > b else ['1']
print('\n'.join(ans))
``... | output | 1 | 53,379 | 12 | 106,759 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Eugeny has array a = a1, a2, ..., an, consisting of n integers. Each integer ai equals to -1, or to 1. Also, he has m queries:
* Query number i is given as a pair of integers li, ri (1 ≤ li ≤ ri ≤ n).
* The response to the query will b... | instruction | 0 | 53,380 | 12 | 106,760 |
Tags: implementation
Correct Solution:
```
from sys import stdin,stdout
n,m = map(int,stdin.readline().split())
a = list(map(int,stdin.readline().split()))
neg_count = 0
pos_count = 0
for i in a:
if i == -1:
neg_count += 1
else:
pos_count += 1
for i in range(m):
l,r = map(int,stdin.read... | output | 1 | 53,380 | 12 | 106,761 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Eugeny has array a = a1, a2, ..., an, consisting of n integers. Each integer ai equals to -1, or to 1. Also, he has m queries:
* Query number i is given as a pair of integers li, ri (1 ≤ li ≤ ri ≤ n).
* The response to the query will b... | instruction | 0 | 53,381 | 12 | 106,762 |
Tags: implementation
Correct Solution:
```
import sys
def minp():
return sys.stdin.readline().strip()
def mints():
return map(int, minp().split())
def solve():
n, m = mints()
a = list(mints())
ones = a.count(1)
mones = n-ones
for i in range(m):
l, r = mints()
c = r-l+1
if c % 2 == 1:
print(0)
e... | output | 1 | 53,381 | 12 | 106,763 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Eugeny has array a = a1, a2, ..., an, consisting of n integers. Each integer ai equals to -1, or to 1. Also, he has m queries:
* Query number i is given as a pair of integers li, ri (1 ≤ li ≤ ri ≤ n).
* The response to the query will b... | instruction | 0 | 53,382 | 12 | 106,764 |
Tags: implementation
Correct Solution:
```
n, m = map(int, input().split())
a_plus = input().split().count('1')
a_min = min(a_plus, n - a_plus) * 2
res = []
for i in range(m):
l, r = map(int, input().split())
length = r - l + 1
res.append('0' if length % 2 or length > a_min else '1')
print('\n'.join(res))
`... | output | 1 | 53,382 | 12 | 106,765 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Eugeny has array a = a1, a2, ..., an, consisting of n integers. Each integer ai equals to -1, or to 1. Also, he has m queries:
* Query number i is given as a pair of integers li, ri (1 ≤ li ≤ ri ≤ n).
* The response to the query will b... | instruction | 0 | 53,383 | 12 | 106,766 |
Tags: implementation
Correct Solution:
```
n,m=map(int, input().split())
a=input().split()
d=a.count("-1")
d=min(d, n-d)
s=""
for i in range(m):
l,r=map(int,input().split())
if (r-l)% 2==1 and d>=(r-l+1)//2:
s+="1\n"
else:
s+="0\n"
print(s)
``` | output | 1 | 53,383 | 12 | 106,767 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Eugeny has array a = a1, a2, ..., an, consisting of n integers. Each integer ai equals to -1, or to 1. Also, he has m queries:
* Query number i is given as a pair of integers li, ri (1 ≤ li ≤ ri ≤ n).
* The response to the query will b... | instruction | 0 | 53,384 | 12 | 106,768 |
Tags: implementation
Correct Solution:
```
n, m = map(int, input().split())
a = list(map(int, input().split()))
a_plus = a.count(1)
a_min = min(a_plus, n - a_plus)
res = []
for i in range(m):
l, r = map(int, input().split())
length = r - l + 1
res += ['0'] if length % 2 or length // 2 > a_min else ['1']
pri... | output | 1 | 53,384 | 12 | 106,769 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Eugeny has array a = a1, a2, ..., an, consisting of n integers. Each integer ai equals to -1, or to 1. Also, he has m queries:
* Query number i is given as a pair of integers li, ri (1 ≤ li ≤ ri ≤ n).
* The response to the query will b... | instruction | 0 | 53,385 | 12 | 106,770 |
Tags: implementation
Correct Solution:
```
n, m = map(int, input().split())
a = list(map(int, input().split()))
a_plus = a.count(1)
a_minus = a.count(-1)
s = ''
for i in range(m):
l, r = map(int, input().split())
length = r - l + 1
s += '0\n' if length % 2 or length // 2 > a_plus or length // 2 > a_minus el... | output | 1 | 53,385 | 12 | 106,771 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Eugeny has array a = a1, a2, ..., an, consisting of n integers. Each integer ai equals to -1, or to 1. Also, he has m queries:
* Query number i is given as a pair of integers li, ri (1 ≤ li ≤ ri ≤ n).
* The response to the query will b... | instruction | 0 | 53,386 | 12 | 106,772 |
Tags: implementation
Correct Solution:
```
n, m = map(int, input().split())
a = input().split()
x = a.count("-1")
x = min(x, n-x)
ans = ""
for _ in range(m):
l, r = map(int, input().split())
if (r-l) % 2 == 1 and x >= (r-l+1)//2:
ans += "1\n"
else:
ans += "0\n"
print(ans)
``` | output | 1 | 53,386 | 12 | 106,773 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Eugeny has array a = a1, a2, ..., an, consisting of n integers. Each integer ai equals to -1, or to 1. Also, he has m queries:
* Query number i is given as a pair of integers li, ri (1 ≤ li ≤... | instruction | 0 | 53,392 | 12 | 106,784 |
No | output | 1 | 53,392 | 12 | 106,785 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a permutation of n numbers p1, p2, ..., pn. We perform k operations of the following type: choose uniformly at random two indices l and r (l ≤ r) and reverse the order of the elements pl, pl + 1, ..., pr. Your task is to find t... | instruction | 0 | 53,454 | 12 | 106,908 |
Tags: brute force, dfs and similar, dp, meet-in-the-middle
Correct Solution:
```
from random import randint
n, k = map(int, input().split())
perm = list(map(int, input().split()))
moves = []
for i in range(n):
for j in range(i, n):
moves.append((i, j))
def go(p, cnt):
if cnt == k:
ret = 0
... | output | 1 | 53,454 | 12 | 106,909 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a permutation of n numbers p1, p2, ..., pn. We perform k operations of the following type: choose uniformly at random two indices l and r (l ≤ r) and reverse the order of the elements pl, pl + 1, ..., pr. Your task is to find t... | instruction | 0 | 53,455 | 12 | 106,910 |
Tags: brute force, dfs and similar, dp, meet-in-the-middle
Correct Solution:
```
n, k = map(int, input().split())
p = list(map(int, input().split()))
def count_invs(a):
ans = 0
for i in range(n-1):
for j in range(i + 1, n):
if a[i] > a[j]:
ans += 1
return ans
def ... | output | 1 | 53,455 | 12 | 106,911 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a permutation of n numbers p1, p2, ..., pn. We perform k operations of the following type: choose uniformly at random two indices l and r (l ≤ r) and reverse the order of the elements pl, pl + 1, ..., pr. Your task is to find t... | instruction | 0 | 53,456 | 12 | 106,912 |
Tags: brute force, dfs and similar, dp, meet-in-the-middle
Correct Solution:
```
def ofsum(num):
num2 = 0
for i in range(num+1):
num2+=i
return num2
def strspace(k):
spaces = 11 - len(str(k)) + len(str(int(k)))
return str(k)+'0' * spaces
def inversion(array):
num = 0
z = len(array)
... | output | 1 | 53,456 | 12 | 106,913 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a permutation of n numbers p1, p2, ..., pn. We perform k operations of the following type: choose uniformly at random two indices l and r (l ≤ r) and reverse the order of the elements pl, pl + 1, ..., pr. Your task is to find t... | instruction | 0 | 53,457 | 12 | 106,914 |
Tags: brute force, dfs and similar, dp, meet-in-the-middle
Correct Solution:
```
#! /usr/bin/env python3
import bisect
def memo(f):
def _f(*args):
try:
return cache[args]
except KeyError:
data = cache[args] = f(*args)
return data
cache = {}
return _f
def... | output | 1 | 53,457 | 12 | 106,915 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a permutation of n numbers p1, p2, ..., pn. We perform k operations of the following type: choose uniformly at random two indices l and r (l ≤ r) and reverse the order of the elements pl, pl + 1, ..., pr. Your task is to find t... | instruction | 0 | 53,458 | 12 | 106,916 |
Tags: brute force, dfs and similar, dp, meet-in-the-middle
Correct Solution:
```
#! /usr/bin/env python3
def memo(f):
def _f(*args):
key = str(args)
try:
return cache[key]
except KeyError:
data = cache[key] = f(*args)
return data
cache = {}
return... | output | 1 | 53,458 | 12 | 106,917 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a permutation of n numbers p1, p2, ..., pn. We perform k operations of the following type: choose uniformly at random two indices l and r (l ≤ r) and reverse the order of the elements pl, pl + 1, ..., pr. Your task is to find t... | instruction | 0 | 53,459 | 12 | 106,918 |
Tags: brute force, dfs and similar, dp, meet-in-the-middle
Correct Solution:
```
import sys
TESTING = False
def reverse(a, l, r):
res = list(a)
while l < r:
res[l], res[r] = res[r], res[l]
l+=1
r-=1
return res
def inversions(a):
res = 0
for l in range(len(a)):
for ... | output | 1 | 53,459 | 12 | 106,919 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a permutation of n numbers p1, p2, ..., pn. We perform k operations of the following type: choose uniformly at random two indices l and r (l ≤ r) and reverse the order of the elements pl, pl + 1, ..., pr. Your task is to find t... | instruction | 0 | 53,460 | 12 | 106,920 |
Tags: brute force, dfs and similar, dp, meet-in-the-middle
Correct Solution:
```
def f(p):
ans = 0
for i in range(len(p)):
for j in range(i, len(p)):
if (p[i] > p[j]):
ans += 1
return ans
n, k = map(int, input().split())
p = list(map(int, input().split())... | output | 1 | 53,460 | 12 | 106,921 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a permutation of n numbers p1, p2, ..., pn. We perform k operations of the following type: choose uniformly at random two indices l and r (l ≤ r) and reverse the order of the elements pl, pl + 1, ..., pr. Your task is to find t... | instruction | 0 | 53,461 | 12 | 106,922 |
Tags: brute force, dfs and similar, dp, meet-in-the-middle
Correct Solution:
```
f = lambda: map(int, input().split())
n, k = f()
p = list(f())
r = range
u = [l * l + l >> 1 for l in r(n + 1)]
v = [(i, j) for i in r(n) for j in r(i + 1, n)]
t = [[p[i] > p[j] for j in r(n)] for i in r(n)]
a = [[0] * n for i in r(n)]
b... | output | 1 | 53,461 | 12 | 106,923 |
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 of n numbers p1, p2, ..., pn. We perform k operations of the following type: choose uniformly at random two indices l and r (l ≤ r) and reverse the order of the eleme... | instruction | 0 | 53,462 | 12 | 106,924 |
Yes | output | 1 | 53,462 | 12 | 106,925 |
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 of n numbers p1, p2, ..., pn. We perform k operations of the following type: choose uniformly at random two indices l and r (l ≤ r) and reverse the order of the eleme... | instruction | 0 | 53,463 | 12 | 106,926 |
Yes | output | 1 | 53,463 | 12 | 106,927 |
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 of n numbers p1, p2, ..., pn. We perform k operations of the following type: choose uniformly at random two indices l and r (l ≤ r) and reverse the order of the eleme... | instruction | 0 | 53,464 | 12 | 106,928 |
Yes | output | 1 | 53,464 | 12 | 106,929 |
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 of n numbers p1, p2, ..., pn. We perform k operations of the following type: choose uniformly at random two indices l and r (l ≤ r) and reverse the order of the eleme... | instruction | 0 | 53,465 | 12 | 106,930 |
Yes | output | 1 | 53,465 | 12 | 106,931 |
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 of n numbers p1, p2, ..., pn. We perform k operations of the following type: choose uniformly at random two indices l and r (l ≤ r) and reverse the order of the eleme... | instruction | 0 | 53,466 | 12 | 106,932 |
No | output | 1 | 53,466 | 12 | 106,933 |
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 of n numbers p1, p2, ..., pn. We perform k operations of the following type: choose uniformly at random two indices l and r (l ≤ r) and reverse the order of the eleme... | instruction | 0 | 53,467 | 12 | 106,934 |
No | output | 1 | 53,467 | 12 | 106,935 |
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 of n numbers p1, p2, ..., pn. We perform k operations of the following type: choose uniformly at random two indices l and r (l ≤ r) and reverse the order of the eleme... | instruction | 0 | 53,468 | 12 | 106,936 |
No | output | 1 | 53,468 | 12 | 106,937 |
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 of n numbers p1, p2, ..., pn. We perform k operations of the following type: choose uniformly at random two indices l and r (l ≤ r) and reverse the order of the eleme... | instruction | 0 | 53,469 | 12 | 106,938 |
No | output | 1 | 53,469 | 12 | 106,939 |
Provide tags and a correct Python 3 solution for this coding contest problem.
After returning from the army Makes received a gift — an array a consisting of n positive integer numbers. He hadn't been solving problems for a long time, so he became interested to answer a particular question: how many triples of indices ... | instruction | 0 | 53,555 | 12 | 107,110 |
Tags: combinatorics, implementation, math, sortings
Correct Solution:
```
input()
l=sorted(list(map(int,input().split())))
a=l.count(l[0]);b=l.count(l[1]);c=l.count(l[2])
if a>2:
print(a*(a-1)*(a-2)//6)
elif a==1 and b>1:
print(b*(b-1)//2)
else:
print(c)
``` | output | 1 | 53,555 | 12 | 107,111 |
Provide tags and a correct Python 3 solution for this coding contest problem.
After returning from the army Makes received a gift — an array a consisting of n positive integer numbers. He hadn't been solving problems for a long time, so he became interested to answer a particular question: how many triples of indices ... | instruction | 0 | 53,556 | 12 | 107,112 |
Tags: combinatorics, implementation, math, sortings
Correct Solution:
```
n = int(input())
a = input().split()
for i in range(n):
a[i] = int(a[i])
from math import factorial
'''def merge(a,b):
c=[]
a1=0
b1=0
while a1!=len(a) and b1!=len(b):
if a[a1]<b[b1]:
c.append(a[a1])
... | output | 1 | 53,556 | 12 | 107,113 |
Provide tags and a correct Python 3 solution for this coding contest problem.
After returning from the army Makes received a gift — an array a consisting of n positive integer numbers. He hadn't been solving problems for a long time, so he became interested to answer a particular question: how many triples of indices ... | instruction | 0 | 53,557 | 12 | 107,114 |
Tags: combinatorics, implementation, math, sortings
Correct Solution:
```
n = int(input())
A = list(map(int, input().split(' '))); A.sort()
ia, ib, ic = 0, 0, 0
while ia < n and A[ia] == A[0]: ia += 1
while (ia+ib) < n and A[ia+ib] == A[1]: ib += 1
while (ia+ib+ic) < n and A[ia+ib+ic] == A[2]: ic += 1
#This works bec... | output | 1 | 53,557 | 12 | 107,115 |
Provide tags and a correct Python 3 solution for this coding contest problem.
After returning from the army Makes received a gift — an array a consisting of n positive integer numbers. He hadn't been solving problems for a long time, so he became interested to answer a particular question: how many triples of indices ... | instruction | 0 | 53,558 | 12 | 107,116 |
Tags: combinatorics, implementation, math, sortings
Correct Solution:
```
n = int(input())
a = [int(i) for i in input().split()]
a.sort()
same = 1
while same < 3 and a[2 - same] == a[2]:
same += 1
cnt = 1
i = 3
if same == 1:
while i < n and a[i] == a[2]:
cnt += 1
i += 1
if same == 2:
while ... | output | 1 | 53,558 | 12 | 107,117 |
Provide tags and a correct Python 3 solution for this coding contest problem.
After returning from the army Makes received a gift — an array a consisting of n positive integer numbers. He hadn't been solving problems for a long time, so he became interested to answer a particular question: how many triples of indices ... | instruction | 0 | 53,559 | 12 | 107,118 |
Tags: combinatorics, implementation, math, sortings
Correct Solution:
```
n = int(input())
a = (list(map(int, input().split())))
b = a[:]
a.sort()
a = a[:3]
if a[0] == a[1] and a[1] == a[2]:
ans = (b.count(a[0]) * (b.count(a[0]) - 1) * (b.count(a[0]) - 2)) // 6
elif a[1] == a[2]:
ans = (b.count(a[1]) * (b.count... | output | 1 | 53,559 | 12 | 107,119 |
Provide tags and a correct Python 3 solution for this coding contest problem.
After returning from the army Makes received a gift — an array a consisting of n positive integer numbers. He hadn't been solving problems for a long time, so he became interested to answer a particular question: how many triples of indices ... | instruction | 0 | 53,560 | 12 | 107,120 |
Tags: combinatorics, implementation, math, sortings
Correct Solution:
```
n=int(input())
inp=input().split()
l=[]
for val in inp:
l.append(int(val))
l.sort()
count=3
while(count<n and l[count]==l[count-1]):
count+=1
if(l[2]!=l[1]):
print(count-2)
elif(l[2]!=l[0]):
print(((count-1)*(count-2))//2)
else:
print((count... | output | 1 | 53,560 | 12 | 107,121 |
Provide tags and a correct Python 3 solution for this coding contest problem.
After returning from the army Makes received a gift — an array a consisting of n positive integer numbers. He hadn't been solving problems for a long time, so he became interested to answer a particular question: how many triples of indices ... | instruction | 0 | 53,561 | 12 | 107,122 |
Tags: combinatorics, implementation, math, sortings
Correct Solution:
```
import sys
input=sys.stdin.readline
from collections import defaultdict as dc
from collections import Counter
from bisect import bisect_right, bisect_left,bisect
import math
from operator import itemgetter
from heapq import heapify, heappop, heap... | output | 1 | 53,561 | 12 | 107,123 |
Provide tags and a correct Python 3 solution for this coding contest problem.
After returning from the army Makes received a gift — an array a consisting of n positive integer numbers. He hadn't been solving problems for a long time, so he became interested to answer a particular question: how many triples of indices ... | instruction | 0 | 53,562 | 12 | 107,124 |
Tags: combinatorics, implementation, math, sortings
Correct Solution:
```
def f(n, r):
if r == 1:
return n
elif r == 2:
return n * (n - 1) // 2
else:
return n * (n - 1) * (n - 2) // 6
n = int(input())
a = list(map(int, input().split()))
dic = {}
for ai in a:
if ai in dic:
... | output | 1 | 53,562 | 12 | 107,125 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
After returning from the army Makes received a gift — an array a consisting of n positive integer numbers. He hadn't been solving problems for a long time, so he became interested to answer a pa... | instruction | 0 | 53,563 | 12 | 107,126 |
Yes | output | 1 | 53,563 | 12 | 107,127 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
After returning from the army Makes received a gift — an array a consisting of n positive integer numbers. He hadn't been solving problems for a long time, so he became interested to answer a pa... | instruction | 0 | 53,564 | 12 | 107,128 |
Yes | output | 1 | 53,564 | 12 | 107,129 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
After returning from the army Makes received a gift — an array a consisting of n positive integer numbers. He hadn't been solving problems for a long time, so he became interested to answer a pa... | instruction | 0 | 53,565 | 12 | 107,130 |
Yes | output | 1 | 53,565 | 12 | 107,131 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
After returning from the army Makes received a gift — an array a consisting of n positive integer numbers. He hadn't been solving problems for a long time, so he became interested to answer a pa... | instruction | 0 | 53,566 | 12 | 107,132 |
Yes | output | 1 | 53,566 | 12 | 107,133 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
After returning from the army Makes received a gift — an array a consisting of n positive integer numbers. He hadn't been solving problems for a long time, so he became interested to answer a pa... | instruction | 0 | 53,567 | 12 | 107,134 |
No | output | 1 | 53,567 | 12 | 107,135 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
After returning from the army Makes received a gift — an array a consisting of n positive integer numbers. He hadn't been solving problems for a long time, so he became interested to answer a pa... | instruction | 0 | 53,568 | 12 | 107,136 |
No | output | 1 | 53,568 | 12 | 107,137 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
After returning from the army Makes received a gift — an array a consisting of n positive integer numbers. He hadn't been solving problems for a long time, so he became interested to answer a pa... | instruction | 0 | 53,569 | 12 | 107,138 |
No | output | 1 | 53,569 | 12 | 107,139 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
After returning from the army Makes received a gift — an array a consisting of n positive integer numbers. He hadn't been solving problems for a long time, so he became interested to answer a pa... | instruction | 0 | 53,570 | 12 | 107,140 |
No | output | 1 | 53,570 | 12 | 107,141 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A permutation of size n is an array of size n such that each integer from 1 to n occurs exactly once in this array. An inversion in a permutation p is a pair of indices (i, j) such that i > j and ai < aj. For example, a permutation [4, 1, 3,... | instruction | 0 | 53,605 | 12 | 107,210 |
Tags: brute force, math
Correct Solution:
```
n = int(input())
s = list(map(int, input().split()))
t = False #even
for i in range(n):
for j in range(i + 1, n):
if s[i] > s[j]:
t = not t
m = int(input())
a = []
for h in range(m):
l, r = map(int, input().split())
if ((r - l + 1) / ... | output | 1 | 53,605 | 12 | 107,211 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A permutation of size n is an array of size n such that each integer from 1 to n occurs exactly once in this array. An inversion in a permutation p is a pair of indices (i, j) such that i > j and ai < aj. For example, a permutation [4, 1, 3,... | instruction | 0 | 53,606 | 12 | 107,212 |
Tags: brute force, math
Correct Solution:
```
import sys
class fenwick():
"""
This Tree Data Structure speeds up caliculating summations of partial sum
and also updating subsets of sequences. Both queries finish in logarithmic times.
"""
# 1-indexed
def __init__(self, n):
self.n = n
... | output | 1 | 53,606 | 12 | 107,213 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A permutation of size n is an array of size n such that each integer from 1 to n occurs exactly once in this array. An inversion in a permutation p is a pair of indices (i, j) such that i > j and ai < aj. For example, a permutation [4, 1, 3,... | instruction | 0 | 53,607 | 12 | 107,214 |
Tags: brute force, math
Correct Solution:
```
def divisors(M):
d=[]
i=1
while M>=i**2:
if M%i==0:
d.append(i)
if i**2!=M:
d.append(M//i)
i=i+1
return d
def popcount(x):
x = x - ((x >> 1) & 0x55555555)
x = (x & 0x33333333) + ((x >> 2) & 0x3... | output | 1 | 53,607 | 12 | 107,215 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A permutation of size n is an array of size n such that each integer from 1 to n occurs exactly once in this array. An inversion in a permutation p is a pair of indices (i, j) such that i > j and ai < aj. For example, a permutation [4, 1, 3,... | instruction | 0 | 53,608 | 12 | 107,216 |
Tags: brute force, math
Correct Solution:
```
import sys
n = int(input())
a = [int(i) for i in input().split(" ")]
m = int(input())
inversion = 0
for i in range(n):
for j in range(i + 1, n):
if a[i] > a[j]:
inversion += 1
if inversion % 2:
even = False
else:
even = True
lines = sys... | output | 1 | 53,608 | 12 | 107,217 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A permutation of size n is an array of size n such that each integer from 1 to n occurs exactly once in this array. An inversion in a permutation p is a pair of indices (i, j) such that i > j and ai < aj. For example, a permutation [4, 1, 3,... | instruction | 0 | 53,609 | 12 | 107,218 |
Tags: brute force, math
Correct Solution:
```
import sys
input=sys.stdin.readline
def getsum(BITTree,i):
i=i+1
s = 0
while i > 0:
s += BITTree[i]
i -= i & (-i)
return(s)
def updatebit(BITTree , n , i ,v):
i=i+1
while i <= n:
BITTree[i] += v
i += i & (-i)
#pr... | output | 1 | 53,609 | 12 | 107,219 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A permutation of size n is an array of size n such that each integer from 1 to n occurs exactly once in this array. An inversion in a permutation p is a pair of indices (i, j) such that i > j and ai < aj. For example, a permutation [4, 1, 3,... | instruction | 0 | 53,610 | 12 | 107,220 |
Tags: brute force, math
Correct Solution:
```
n = int(input())
a = list(map(int, input().split()))
inv = False # even
for i in range(n):
for j in range(i + 1, n):
if a[i] > a[j]:
inv = not inv
m = int(input())
ans = list()
for i in range(m):
l, r = map(int, input().split())
if ((r -... | output | 1 | 53,610 | 12 | 107,221 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A permutation of size n is an array of size n such that each integer from 1 to n occurs exactly once in this array. An inversion in a permutation p is a pair of indices (i, j) such that i > j and ai < aj. For example, a permutation [4, 1, 3,... | instruction | 0 | 53,611 | 12 | 107,222 |
Tags: brute force, math
Correct Solution:
```
import sys,math,itertools
from collections import Counter,deque,defaultdict
from bisect import bisect_left,bisect_right
from heapq import heappop,heappush,heapify, nlargest
from copy import deepcopy
mod = 10**9+7
INF = float('inf')
def inp(): return int(sys.stdin.readline(... | output | 1 | 53,611 | 12 | 107,223 |
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