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.
Today, hedgehog Filya went to school for the very first time! Teacher gave him a homework which Filya was unable to complete without your help.
Filya is given an array of non-negative integers a1, a2, ..., an. First, he pick an integer x an... | instruction | 0 | 66,879 | 12 | 133,758 |
Tags: implementation, sortings
Correct Solution:
```
#!/usr/local/env python3
# -*- encoding: utf-8 -*-
import sys
def readnlines(f_in):
n = int(f_in.readline().strip())
s = set()
content = f_in.readline().strip()
for i, line in zip(range(n), content.split(' ')):
if line.isdigit():
... | output | 1 | 66,879 | 12 | 133,759 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Today, hedgehog Filya went to school for the very first time! Teacher gave him a homework which Filya was unable to complete without your help.
Filya is given an array of non-negative integers a1, a2, ..., an. First, he pick an integer x an... | instruction | 0 | 66,880 | 12 | 133,760 |
Tags: implementation, sortings
Correct Solution:
```
n=int(input())
a=input().split()
count=0
a_distinct=[None]*3
for i in a:
cur_num=int(i)
if cur_num not in a_distinct:
if count==3:
print("NO")
exit()
a_distinct[count]=cur_num
count+=1
if count<3:
print("YES")
exit()
sum=a_distinct[0]+a_distinct[1]... | output | 1 | 66,880 | 12 | 133,761 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Today, hedgehog Filya went to school for the very first time! Teacher gave him a homework which Filya was unable to complete without your help.
Filya is given an array of non-negative integers ... | instruction | 0 | 66,881 | 12 | 133,762 |
Yes | output | 1 | 66,881 | 12 | 133,763 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Today, hedgehog Filya went to school for the very first time! Teacher gave him a homework which Filya was unable to complete without your help.
Filya is given an array of non-negative integers ... | instruction | 0 | 66,882 | 12 | 133,764 |
Yes | output | 1 | 66,882 | 12 | 133,765 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Today, hedgehog Filya went to school for the very first time! Teacher gave him a homework which Filya was unable to complete without your help.
Filya is given an array of non-negative integers ... | instruction | 0 | 66,883 | 12 | 133,766 |
Yes | output | 1 | 66,883 | 12 | 133,767 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Today, hedgehog Filya went to school for the very first time! Teacher gave him a homework which Filya was unable to complete without your help.
Filya is given an array of non-negative integers ... | instruction | 0 | 66,884 | 12 | 133,768 |
Yes | output | 1 | 66,884 | 12 | 133,769 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Today, hedgehog Filya went to school for the very first time! Teacher gave him a homework which Filya was unable to complete without your help.
Filya is given an array of non-negative integers ... | instruction | 0 | 66,885 | 12 | 133,770 |
No | output | 1 | 66,885 | 12 | 133,771 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Today, hedgehog Filya went to school for the very first time! Teacher gave him a homework which Filya was unable to complete without your help.
Filya is given an array of non-negative integers ... | instruction | 0 | 66,886 | 12 | 133,772 |
No | output | 1 | 66,886 | 12 | 133,773 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Today, hedgehog Filya went to school for the very first time! Teacher gave him a homework which Filya was unable to complete without your help.
Filya is given an array of non-negative integers ... | instruction | 0 | 66,887 | 12 | 133,774 |
No | output | 1 | 66,887 | 12 | 133,775 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Today, hedgehog Filya went to school for the very first time! Teacher gave him a homework which Filya was unable to complete without your help.
Filya is given an array of non-negative integers ... | instruction | 0 | 66,888 | 12 | 133,776 |
No | output | 1 | 66,888 | 12 | 133,777 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given the array of integer numbers a0, a1, ..., an - 1. For each element find the distance to the nearest zero (to the element which equals to zero). There is at least one zero element in the given array.
Input
The first line conta... | instruction | 0 | 66,901 | 12 | 133,802 |
Tags: constructive algorithms
Correct Solution:
```
n=int(input())
a=list(map(int,input().split()))
L,R=[0]*n,[0]*n
m=-2*10**9
for i in range(n):
if a[i]==0:
L[i],m=0,i
else:
L[i]=i-m
m=2*10**9
for i in range(n-1,-1,-1):
if a[i]==0:
R[i],m=0,i
else:
R[i]=m-i
s=""
for i in... | output | 1 | 66,901 | 12 | 133,803 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given the array of integer numbers a0, a1, ..., an - 1. For each element find the distance to the nearest zero (to the element which equals to zero). There is at least one zero element in the given array.
Input
The first line conta... | instruction | 0 | 66,902 | 12 | 133,804 |
Tags: constructive algorithms
Correct Solution:
```
# @oj: codeforces
# @id: hitwanyang
# @email: 296866643@qq.com
# @date: 2020-11-12 10:38
# @url:https://codeforc.es/contest/803/problem/B
import sys,os
from io import BytesIO, IOBase
import collections,itertools,bisect,heapq,math,string
from decimal import *
# region ... | output | 1 | 66,902 | 12 | 133,805 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given the array of integer numbers a0, a1, ..., an - 1. For each element find the distance to the nearest zero (to the element which equals to zero). There is at least one zero element in the given array.
Input
The first line conta... | instruction | 0 | 66,903 | 12 | 133,806 |
Tags: constructive algorithms
Correct Solution:
```
n = int(input())
a = list(map(int,input().split()))
s = [i for i in range(n) if a[i]==0]
c=0
for i in range(n):
if c+1<len(s) and (abs(s[c]-i)>abs(s[c+1]-i)):
c+=1
print(abs(i-s[c]))
``` | output | 1 | 66,903 | 12 | 133,807 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given the array of integer numbers a0, a1, ..., an - 1. For each element find the distance to the nearest zero (to the element which equals to zero). There is at least one zero element in the given array.
Input
The first line conta... | instruction | 0 | 66,904 | 12 | 133,808 |
Tags: constructive algorithms
Correct Solution:
```
n = int(input())
f = list(map(int, input().split()))
zeroes = []
for i in range(len(f)):
if f[i] == 0:
zeroes.append(i)
cur0 = 0
if len(zeroes) > 1:
next0 = 1
else:
next0 = None
for i in range(len(f)):
end = " "
if i == len(f) - 1:
... | output | 1 | 66,904 | 12 | 133,809 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given the array of integer numbers a0, a1, ..., an - 1. For each element find the distance to the nearest zero (to the element which equals to zero). There is at least one zero element in the given array.
Input
The first line conta... | instruction | 0 | 66,905 | 12 | 133,810 |
Tags: constructive algorithms
Correct Solution:
```
def zero(i):
for j in range(i+1,n):
if a[j] == 0:
return j
return -1
n = int(input())
a = list(map(int, input().split()))
res = []
zerol, zeror = 2 * 10**5 + 1, zero(-1)
for i in range(n):
if a[i] != 0:
res.append(min(abs(i-ze... | output | 1 | 66,905 | 12 | 133,811 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given the array of integer numbers a0, a1, ..., an - 1. For each element find the distance to the nearest zero (to the element which equals to zero). There is at least one zero element in the given array.
Input
The first line conta... | instruction | 0 | 66,906 | 12 | 133,812 |
Tags: constructive algorithms
Correct Solution:
```
import sys
n = int(input())
arr = sys.stdin.readline().split()
z = [None]*n
j = k = 0
for i in range(n):
if(arr[i] == '0'):
"z contains zero's index of arr"
z[j] = i
j += 1
"remove extra space"
z = z[0:j]
#print(z)
for i in range(n):
i... | output | 1 | 66,906 | 12 | 133,813 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given the array of integer numbers a0, a1, ..., an - 1. For each element find the distance to the nearest zero (to the element which equals to zero). There is at least one zero element in the given array.
Input
The first line conta... | instruction | 0 | 66,907 | 12 | 133,814 |
Tags: constructive algorithms
Correct Solution:
```
n=int(input())
a=list(map(int,input().split()))
l,r,ll,rr,c=[0]*n,[0]*n,-10**9,10**9,[]
for i in range(n):
if not a[i]:ll=i
l[i]=i-ll
for i in range(n-1,-1,-1):
if not a[i]:rr=i
r[i]=rr-i
for i in range(n):c.append(str(min(l[i],r[i])))
print(' '.join(c))
``` | output | 1 | 66,907 | 12 | 133,815 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given the array of integer numbers a0, a1, ..., an - 1. For each element find the distance to the nearest zero (to the element which equals to zero). There is at least one zero element in the given array.
Input
The first line conta... | instruction | 0 | 66,908 | 12 | 133,816 |
Tags: constructive algorithms
Correct Solution:
```
#!/usr/bin/env python3
MAX = 2*10**5 + 1
n = int(input().strip())
ais = list(map(int, input().strip().split()))
dleft = [MAX for _ in range(n)]
dright = [MAX for _ in range(n)]
for i in range(n):
if ais[i] == 0:
dleft[i] = 0
else:
dleft[i] = MAX if i == 0 el... | output | 1 | 66,908 | 12 | 133,817 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
After entering high school, Takeko, who joined the programming club, gradually became absorbed in the fun of algorithms. Now, when I'm in the second grade, I'd like to participate in Programming... | instruction | 0 | 67,162 | 12 | 134,324 |
No | output | 1 | 67,162 | 12 | 134,325 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
After entering high school, Takeko, who joined the programming club, gradually became absorbed in the fun of algorithms. Now, when I'm in the second grade, I'd like to participate in Programming... | instruction | 0 | 67,163 | 12 | 134,326 |
No | output | 1 | 67,163 | 12 | 134,327 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
After entering high school, Takeko, who joined the programming club, gradually became absorbed in the fun of algorithms. Now, when I'm in the second grade, I'd like to participate in Programming... | instruction | 0 | 67,164 | 12 | 134,328 |
No | output | 1 | 67,164 | 12 | 134,329 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
After entering high school, Takeko, who joined the programming club, gradually became absorbed in the fun of algorithms. Now, when I'm in the second grade, I'd like to participate in Programming... | instruction | 0 | 67,165 | 12 | 134,330 |
No | output | 1 | 67,165 | 12 | 134,331 |
Provide a correct Python 3 solution for this coding contest problem.
problem
Given the sequence $ A $ of length $ N $. The $ i $ item in $ A $ is $ A_i $. You can do the following for this sequence:
* $ 1 \ leq i \ leq N --Choose the integer i that is 1 $. Swap the value of $ A_i $ with the value of $ A_ {i + 1} $.
... | instruction | 0 | 67,216 | 12 | 134,432 |
"Correct Solution:
```
n = int(input())
a = list(map(int, input().split()))
ans = n
s = 0
b = [0 for i in range(n)]
for i in range(n):
b[i] = a[i]
for i in range(1,n):
if i%2 == 1:
if b[i] > b[i-1]:
flag = True
if i < n-1:
if b[i-1] > b[i+1] and b[i+1] < b[i]:
... | output | 1 | 67,216 | 12 | 134,433 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Learn, learn and learn again — Valera has to do this every day. He is studying at mathematical school, where math is the main discipline. The mathematics teacher loves her discipline very much and tries to cultivate this love in children. Th... | instruction | 0 | 67,581 | 12 | 135,162 |
Tags: greedy
Correct Solution:
```
n = int(input())
l = list(map(int,input().split()))
suf = [0]
tot = 0
for i in range(1,n+1):
tot += l[n - i]
suf.append(min(0,tot,suf[i-1]))
pre = [0]
for i in range(1,n+1):
pre.append(pre[i-1] + l[i-1])
ans = -9999999999999999999
for i in range(n+1):
ans = max(ans,pre[n] - 2... | output | 1 | 67,581 | 12 | 135,163 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Learn, learn and learn again — Valera has to do this every day. He is studying at mathematical school, where math is the main discipline. The mathematics teacher loves her discipline very much and tries to cultivate this love in children. Th... | instruction | 0 | 67,582 | 12 | 135,164 |
Tags: greedy
Correct Solution:
```
n = int(input())
seq = list(map(int, input().split()))
soma, melhor = 0, 0
for i in seq:
soma = max(0, soma + i)
melhor = max(melhor, soma)
print(2*melhor - sum(seq))
``` | output | 1 | 67,582 | 12 | 135,165 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Learn, learn and learn again — Valera has to do this every day. He is studying at mathematical school, where math is the main discipline. The mathematics teacher loves her discipline very much and tries to cultivate this love in children. Th... | instruction | 0 | 67,583 | 12 | 135,166 |
Tags: greedy
Correct Solution:
```
n=int(input())
ans1=0
ans=0
sum=0
x=list(input().split())
for i in range(len(x)):
sum+=int(x[i])
ans1+=int(x[i])
ans1=max(ans1,0)
ans=max(ans,ans1)
print(2*ans-sum)
``` | output | 1 | 67,583 | 12 | 135,167 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Learn, learn and learn again — Valera has to do this every day. He is studying at mathematical school, where math is the main discipline. The mathematics teacher loves her discipline very much and tries to cultivate this love in children. Th... | instruction | 0 | 67,584 | 12 | 135,168 |
Tags: greedy
Correct Solution:
```
n, a = int(input()), list(map(int, input().split()))
b = a[:: -1]
for i in range(n - 1): a[i + 1] += a[i]
for i in range(n - 1): b[i + 1] += b[i]
s, a, b = a[-1], [0] + a, [0] + b
for i in range(n): a[i + 1] = min(a[i], a[i + 1])
for i in range(n): b[i + 1] = min(b[i], b[i + 1])
b.rev... | output | 1 | 67,584 | 12 | 135,169 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Learn, learn and learn again — Valera has to do this every day. He is studying at mathematical school, where math is the main discipline. The mathematics teacher loves her discipline very much and tries to cultivate this love in children. Th... | instruction | 0 | 67,585 | 12 | 135,170 |
Tags: greedy
Correct Solution:
```
n = int(input())
values = list(map(int, input().split()))
best_infix = infix = 0
for x in values:
infix = max(0, infix + x)
best_infix = max(best_infix, infix)
print(2 * best_infix - sum(values))
``` | output | 1 | 67,585 | 12 | 135,171 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Learn, learn and learn again — Valera has to do this every day. He is studying at mathematical school, where math is the main discipline. The mathematics teacher loves her discipline very much and tries to cultivate this love in children. Th... | instruction | 0 | 67,586 | 12 | 135,172 |
Tags: greedy
Correct Solution:
```
# by the authority of GOD author: manhar singh sachdev #
import os,sys
from io import BytesIO,IOBase
def main():
n = int(input())
a = list(map(int,input().split()))
dp = [0 if a[-1]>0 else a[-1]]
dp1 = [0 if a[-1]<0 else a[-1]]
xx = a[-1]
for i in range(n... | output | 1 | 67,586 | 12 | 135,173 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Learn, learn and learn again — Valera has to do this every day. He is studying at mathematical school, where math is the main discipline. The mathematics teacher loves her discipline very much and tries to cultivate this love in children. Th... | instruction | 0 | 67,587 | 12 | 135,174 |
Tags: greedy
Correct Solution:
```
n = int(input())
arr = input().split()
arr = [int(i) for i in arr]
max_, sum_ = 0, 0
for i in range(len(arr)):
sum_ += arr[i]
if sum_ < 0:
sum_ = 0
max_ = max(max_, sum_)
print(2*max_ - sum(arr))
``` | output | 1 | 67,587 | 12 | 135,175 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Learn, learn and learn again — Valera has to do this every day. He is studying at mathematical school, where math is the main discipline. The mathematics teacher loves her discipline very much and tries to cultivate this love in children. Th... | instruction | 0 | 67,588 | 12 | 135,176 |
Tags: greedy
Correct Solution:
```
n = int(input())
s = input().split()
a = []
sum = 0
for i in range(0, n) :
a.append(int(s[i]))
sum += int(s[i])
maxx = 0
s = 0
for i in range(0, n) :
if (s + a[i] < 0) : s = 0
else :
s += a[i]
maxx = max(maxx, s)
maxx = max(maxx, s)
print(maxx * 2 - sum... | output | 1 | 67,588 | 12 | 135,177 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an integer sequence a_1, a_2, ..., a_n.
Find the number of pairs of indices (l, r) (1 ≤ l ≤ r ≤ n) such that the value of median of a_l, a_{l+1}, ..., a_r is exactly the given number m.
The median of a sequence is the value o... | instruction | 0 | 68,133 | 12 | 136,266 |
Tags: sortings
Correct Solution:
```
import math
import sys
from collections import defaultdict
# input = sys.stdin.readline
rt = lambda: map(int, input().split())
ri = lambda: int(input())
rl = lambda: list(map(int, input().split()))
def main():
n, m = rt()
a = rl()
def greaterCount(m):
sums = ... | output | 1 | 68,133 | 12 | 136,267 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an integer sequence a_1, a_2, ..., a_n.
Find the number of pairs of indices (l, r) (1 ≤ l ≤ r ≤ n) such that the value of median of a_l, a_{l+1}, ..., a_r is exactly the given number m.
The median of a sequence is the value o... | instruction | 0 | 68,134 | 12 | 136,268 |
Tags: sortings
Correct Solution:
```
class BinaryIndexedTree:
def __init__(self, n):
self.bit = [0] * n
def add(self, i, x):
i += 1
while i <= len(self.bit):
self.bit[i-1] += x
i += i & -i
def sum_sub(self, i):
a = 0
i += 1
while i:
a += self.bit[i-1]
i -= i & -i
... | output | 1 | 68,134 | 12 | 136,269 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an integer sequence a_1, a_2, ..., a_n.
Find the number of pairs of indices (l, r) (1 ≤ l ≤ r ≤ n) such that the value of median of a_l, a_{l+1}, ..., a_r is exactly the given number m.
The median of a sequence is the value o... | instruction | 0 | 68,135 | 12 | 136,270 |
Tags: sortings
Correct Solution:
```
L1=list(map(int, input().split()))
numList=list(map(int, input().split()))
length=L1[0]
m=L1[1]
def greaterCount(numList,m):
countDic={0:1}
sum=0
total=0
rem=0
for number in numList:
if number>=m:
sum+=1
rem+=countDic[sum-1]
... | output | 1 | 68,135 | 12 | 136,271 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an integer sequence a_1, a_2, ..., a_n.
Find the number of pairs of indices (l, r) (1 ≤ l ≤ r ≤ n) such that the value of median of a_l, a_{l+1}, ..., a_r is exactly the given number m.
The median of a sequence is the value o... | instruction | 0 | 68,136 | 12 | 136,272 |
Tags: sortings
Correct Solution:
```
n, m = map(int, input().split())
a = list(map(int, input().split()))
class BIT:
def __init__(self, n):
self.n = n
self.data = [0]*(n+1)
def to_sum(self, i):
s = 0
while i > 0:
s += self.data[i]
i -= (i & -i)
... | output | 1 | 68,136 | 12 | 136,273 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an integer sequence a_1, a_2, ..., a_n.
Find the number of pairs of indices (l, r) (1 ≤ l ≤ r ≤ n) such that the value of median of a_l, a_{l+1}, ..., a_r is exactly the given number m.
The median of a sequence is the value o... | instruction | 0 | 68,137 | 12 | 136,274 |
Tags: sortings
Correct Solution:
```
MAXN = 200001
def less_sum(s, m):
n = len(s)
a = 0
b = 0
res = 0
last = 0
count = [0 for i in range(-MAXN, MAXN+1)]
count[0] = 1
x = 0
last = 1
for i in range(n):
if s[i] > m:
b += 1
else:
a += 1
... | output | 1 | 68,137 | 12 | 136,275 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an integer sequence a_1, a_2, ..., a_n.
Find the number of pairs of indices (l, r) (1 ≤ l ≤ r ≤ n) such that the value of median of a_l, a_{l+1}, ..., a_r is exactly the given number m.
The median of a sequence is the value o... | instruction | 0 | 68,138 | 12 | 136,276 |
Tags: sortings
Correct Solution:
```
class BIT():
def __init__(self,n):
self.BIT=[0]*(n+1)
self.num=n
def query(self,idx):
res_sum = 0
while idx > 0:
res_sum += self.BIT[idx]
idx -= idx&(-idx)
return res_sum
#Ai += x O(logN)
def update(se... | output | 1 | 68,138 | 12 | 136,277 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an integer sequence a_1, a_2, ..., a_n.
Find the number of pairs of indices (l, r) (1 ≤ l ≤ r ≤ n) such that the value of median of a_l, a_{l+1}, ..., a_r is exactly the given number m.
The median of a sequence is the value o... | instruction | 0 | 68,139 | 12 | 136,278 |
Tags: sortings
Correct Solution:
```
def ask(x):
s={}
s[0]=1
sum,cnt,res=0,0,0
for i in range(n):
if(a[i]<x):
sum-=1
cnt-=s.get(sum,0)
else:
cnt+=s.get(sum,0)
sum+=1
s[sum]=s.get(sum,0)+1
res+=cnt
return res
n,m=map(int... | output | 1 | 68,139 | 12 | 136,279 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given an integer sequence a_1, a_2, ..., a_n.
Find the number of pairs of indices (l, r) (1 ≤ l ≤ r ≤ n) such that the value of median of a_l, a_{l+1}, ..., a_r is exactly the given number m.
The median of a sequence is the value o... | instruction | 0 | 68,140 | 12 | 136,280 |
Tags: sortings
Correct Solution:
```
def main():
n, m = map(int, input().split())
l = list(map(int, input().split()))
res = []
for m in m, m - 1:
r = c = 0
cnt = [0] * 400002
cnt[0] = last = 1
for a in l:
if a > m:
c -= 1
last -... | output | 1 | 68,140 | 12 | 136,281 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an integer sequence a_1, a_2, ..., a_n.
Find the number of pairs of indices (l, r) (1 ≤ l ≤ r ≤ n) such that the value of median of a_l, a_{l+1}, ..., a_r is exactly the given num... | instruction | 0 | 68,141 | 12 | 136,282 |
Yes | output | 1 | 68,141 | 12 | 136,283 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an integer sequence a_1, a_2, ..., a_n.
Find the number of pairs of indices (l, r) (1 ≤ l ≤ r ≤ n) such that the value of median of a_l, a_{l+1}, ..., a_r is exactly the given num... | instruction | 0 | 68,142 | 12 | 136,284 |
Yes | output | 1 | 68,142 | 12 | 136,285 |
Provide tags and a correct Python 2 solution for this coding contest problem.
You are given an array a, consisting of n positive integers.
Let's call a concatenation of numbers x and y the number that is obtained by writing down numbers x and y one right after another without changing the order. For example, a concat... | instruction | 0 | 68,151 | 12 | 136,302 |
Tags: implementation, math
Correct Solution:
```
from sys import stdin, stdout
from collections import Counter, defaultdict
from itertools import permutations, combinations
raw_input = stdin.readline
pr = stdout.write
def in_num():
return int(raw_input())
def in_arr():
return map(int,raw_input().split())
... | output | 1 | 68,151 | 12 | 136,303 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vasya has got an array consisting of n integers, and two integers k and len in addition. All numbers in the array are either between 1 and k (inclusive), or equal to -1. The array is good if there is no segment of len consecutive equal numbe... | instruction | 0 | 68,176 | 12 | 136,352 |
Tags: dp
Correct Solution:
```
def vasya_and_array():
n,k,leng = [int(x) for x in input().split()]
if(leng==1):
return 0
a = [int(x) for x in input().split()]
mod = 998244353
a.insert(0,0)
dp = [[0 for x in range((k+1))] for y in range(n+1)]
sumdp = [0 for _ in range(n+1)]
sumdp[... | output | 1 | 68,176 | 12 | 136,353 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This is the harder version of the problem. In this version, 1 ≤ n, m ≤ 2⋅10^5. You can hack this problem if you locked it. But you can hack the previous problem only if you locked both problems.
You are given a sequence of integers a=[a_1,a... | instruction | 0 | 68,259 | 12 | 136,518 |
Tags: data structures, greedy
Correct Solution:
```
import sys
input=sys.stdin.readline
from operator import itemgetter
def updatebit(BITTree , n , i ,v):
#print('n',n)
while i <= n:
#print('i',i)
BITTree[i] += v
i += i & (-i)
#print(BITTree)
def bisect_left( val):
sum_ = 0
... | output | 1 | 68,259 | 12 | 136,519 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This is the harder version of the problem. In this version, 1 ≤ n, m ≤ 2⋅10^5. You can hack this problem if you locked it. But you can hack the previous problem only if you locked both problems.
You are given a sequence of integers a=[a_1,a... | instruction | 0 | 68,260 | 12 | 136,520 |
Tags: data structures, greedy
Correct Solution:
```
# Binary Indexed Tree (Fenwick Tree)
class BIT():
"""一点加算、区間取得クエリをそれぞれO(logN)で答える
add: i番目にvalを加える
get_sum: 区間[l, r)の和を求める
i, l, rは0-indexed
"""
def __init__(self, n):
self.n = n
self.bit = [0] * (n + 1)
def _sum(self, i):
... | output | 1 | 68,260 | 12 | 136,521 |
Provide tags and a correct Python 3 solution for this coding contest problem.
This is the harder version of the problem. In this version, 1 ≤ n, m ≤ 2⋅10^5. You can hack this problem if you locked it. But you can hack the previous problem only if you locked both problems.
You are given a sequence of integers a=[a_1,a... | instruction | 0 | 68,261 | 12 | 136,522 |
Tags: data structures, greedy
Correct Solution:
```
from bisect import bisect_left, bisect_right, insort_right
class SquareSkipList:
def __init__(self, values=None, sorted_=False, square=1000, seed=42):
inf = float("inf")
self.square = square
if values is None:
self.rand_y = seed... | output | 1 | 68,261 | 12 | 136,523 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Anton loves transforming one permutation into another one by swapping elements for money, and Ira doesn't like paying for stupid games. Help them obtain the required permutation by paying as little money as possible.
More formally, we have ... | instruction | 0 | 68,563 | 12 | 137,126 |
Tags: constructive algorithms, greedy, math
Correct Solution:
```
n = int(input())
a = list(map(int,input().split()))
b = list(map(int,input().split()))
c = {}
for i in range(n):
c[b[i]] = i
b = []
for i in range(n):
a[i] = c[a[i]]
print(sum(abs(a[i] - i) for i in range(n)) >> 1)
while True:
for i in range... | output | 1 | 68,563 | 12 | 137,127 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Anton loves transforming one permutation into another one by swapping elements for money, and Ira doesn't like paying for stupid games. Help them obtain the required permutation by paying as little money as possible.
More formally, we have ... | instruction | 0 | 68,564 | 12 | 137,128 |
Tags: constructive algorithms, greedy, math
Correct Solution:
```
n = int(input())
a = list(map(int, input().split()))
b = list(map(int, input().split()))
c = {}
for i in range(n):
c[b[i]] = i
b = []
for i in range(n):
a[i] = c[a[i]]
print(sum(abs(a[i] - i) for i in range(n)) >> 1)
while True:
for i in rang... | output | 1 | 68,564 | 12 | 137,129 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Anton loves transforming one permutation into another one by swapping elements for money, and Ira doesn't like paying for stupid games. Help them obtain the required permutation by paying as little money as possible.
More formally, we have ... | instruction | 0 | 68,565 | 12 | 137,130 |
Tags: constructive algorithms, greedy, math
Correct Solution:
```
n = int(input())
p = [int(x) for x in input().split()]
s = [int(x) for x in input().split()]
list = []
for i in range(n):
list.append(s.index(p[i])-i)
cost = 0
output = []
while list != [0]*n:
for i in range(n):
if list[i] != 0:
... | output | 1 | 68,565 | 12 | 137,131 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Anton loves transforming one permutation into another one by swapping elements for money, and Ira doesn't like paying for stupid games. Help them obtain the required permutation by paying as lit... | instruction | 0 | 68,566 | 12 | 137,132 |
No | output | 1 | 68,566 | 12 | 137,133 |
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