message stringlengths 2 15.4k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 45 107k | cluster float64 21 21 | __index_level_0__ int64 90 214k |
|---|---|---|---|---|---|
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As Will is stuck in the Upside Down, he can still communicate with his mom, Joyce, through the Christmas lights (he can turn them on and off with his mind). He can't directly tell his mom where ... | instruction | 0 | 47,639 | 21 | 95,278 |
No | output | 1 | 47,639 | 21 | 95,279 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As Will is stuck in the Upside Down, he can still communicate with his mom, Joyce, through the Christmas lights (he can turn them on and off with his mind). He can't directly tell his mom where ... | instruction | 0 | 47,640 | 21 | 95,280 |
No | output | 1 | 47,640 | 21 | 95,281 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As Will is stuck in the Upside Down, he can still communicate with his mom, Joyce, through the Christmas lights (he can turn them on and off with his mind). He can't directly tell his mom where ... | instruction | 0 | 47,641 | 21 | 95,282 |
No | output | 1 | 47,641 | 21 | 95,283 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As Will is stuck in the Upside Down, he can still communicate with his mom, Joyce, through the Christmas lights (he can turn them on and off with his mind). He can't directly tell his mom where ... | instruction | 0 | 47,642 | 21 | 95,284 |
No | output | 1 | 47,642 | 21 | 95,285 |
Provide tags and a correct Python 3 solution for this coding contest problem.
As Will is stuck in the Upside Down, he can still communicate with his mom, Joyce, through the Christmas lights (he can turn them on and off with his mind). He can't directly tell his mom where he is, because the monster that took him to the... | instruction | 0 | 51,032 | 21 | 102,064 |
Tags: dp, greedy, implementation, math
Correct Solution:
```
#!/user/bin/env python 3.5
# -*- coding: utf-8 -*-
s=input()
a=0
n=len(s)
for i in range(n):
l=0
k=0
for j in range(i,n):
l+=s[j]=='('
l-=s[j]==')'
k+=s[j]=='?'
if l+k<0:
break
if k>l:
l,k=k,l
if l==k:
a=a+1
print(a)
``` | output | 1 | 51,032 | 21 | 102,065 |
Provide tags and a correct Python 3 solution for this coding contest problem.
As Will is stuck in the Upside Down, he can still communicate with his mom, Joyce, through the Christmas lights (he can turn them on and off with his mind). He can't directly tell his mom where he is, because the monster that took him to the... | instruction | 0 | 51,033 | 21 | 102,066 |
Tags: dp, greedy, implementation, math
Correct Solution:
```
s = input()
l = len(s)
ans = 0
for i in range(0, l):
m = n = 0
for j in range(i, l):
m += s[j] == '('
m -= s[j] == ')'
n += s[j] == '?'
if m + n < 0:
break
if m < n:
m, n = n, m
... | output | 1 | 51,033 | 21 | 102,067 |
Provide tags and a correct Python 3 solution for this coding contest problem.
As Will is stuck in the Upside Down, he can still communicate with his mom, Joyce, through the Christmas lights (he can turn them on and off with his mind). He can't directly tell his mom where he is, because the monster that took him to the... | instruction | 0 | 51,034 | 21 | 102,068 |
Tags: dp, greedy, implementation, math
Correct Solution:
```
s = input()
res, n = 0, len(s)
for i in range(n-1):
j, c, q = i , 0, 0
while j < n and c + q >= 0:
if(s[j] == '('): c += 1
elif(s[j] == ')'): c -= 1
else: q += 1
if(c < q):
c, q = q, c
... | output | 1 | 51,034 | 21 | 102,069 |
Provide tags and a correct Python 3 solution for this coding contest problem.
As Will is stuck in the Upside Down, he can still communicate with his mom, Joyce, through the Christmas lights (he can turn them on and off with his mind). He can't directly tell his mom where he is, because the monster that took him to the... | instruction | 0 | 51,035 | 21 | 102,070 |
Tags: dp, greedy, implementation, math
Correct Solution:
```
s=input().strip()
n=len(s)
ques=ans=ini=0
for i in range(n):
ques=ini=0
for j in range(i,n):
c=s[j]
if(c=="?"):ques+=1
elif(c=='('):ini+=1
else:ini-=1
if(ini<0):break
if(ques>ini):
ques-=1;in... | output | 1 | 51,035 | 21 | 102,071 |
Provide tags and a correct Python 3 solution for this coding contest problem.
As Will is stuck in the Upside Down, he can still communicate with his mom, Joyce, through the Christmas lights (he can turn them on and off with his mind). He can't directly tell his mom where he is, because the monster that took him to the... | instruction | 0 | 51,036 | 21 | 102,072 |
Tags: dp, greedy, implementation, math
Correct Solution:
```
s = str(input())
n = len(s)
ans = 0
dp = [[0 for _ in range(n)] for _ in range(2)]
for i in range(n - 1):
if s[i] == ')':
continue
dp[0][i] = 1
dp[1][i] = 1
for j in range(i + 1, n):
if s[j] == '(':
dp[0][j] = dp[0... | output | 1 | 51,036 | 21 | 102,073 |
Provide tags and a correct Python 3 solution for this coding contest problem.
As Will is stuck in the Upside Down, he can still communicate with his mom, Joyce, through the Christmas lights (he can turn them on and off with his mind). He can't directly tell his mom where he is, because the monster that took him to the... | instruction | 0 | 51,037 | 21 | 102,074 |
Tags: dp, greedy, implementation, math
Correct Solution:
```
s = input()
l = len(s)
ans = 0
for i in range(0, l):
ln = n = 0
for j in range(i, l):
if s[j] == '(':
ln += 1
elif s[j] == ')':
ln -= 1
else:
n += 1
ln -= 1
if ln == 0:
... | output | 1 | 51,037 | 21 | 102,075 |
Provide tags and a correct Python 3 solution for this coding contest problem.
As Will is stuck in the Upside Down, he can still communicate with his mom, Joyce, through the Christmas lights (he can turn them on and off with his mind). He can't directly tell his mom where he is, because the monster that took him to the... | instruction | 0 | 51,038 | 21 | 102,076 |
Tags: dp, greedy, implementation, math
Correct Solution:
```
import sys
li = lambda : [int(x) for x in sys.stdin.readline().strip().split()]
rw = lambda : sys.stdin.readline().strip().split()
ni = lambda : int(sys.stdin.readline().strip())
nsi = lambda : sys.stdin.readline().strip()
from collections import ... | output | 1 | 51,038 | 21 | 102,077 |
Provide tags and a correct Python 3 solution for this coding contest problem.
As Will is stuck in the Upside Down, he can still communicate with his mom, Joyce, through the Christmas lights (he can turn them on and off with his mind). He can't directly tell his mom where he is, because the monster that took him to the... | instruction | 0 | 51,039 | 21 | 102,078 |
Tags: dp, greedy, implementation, math
Correct Solution:
```
s = str(input())
n = len(s)
ans = 0
for l in range(n-1):
cnt = 0
qu = 0
chk = 0
if s[l] == '(':
cnt += 1
chk += 1
elif s[l] == '?':
qu += 1
chk = max(chk-1, 0)
else:
continue
for r in range(... | output | 1 | 51,039 | 21 | 102,079 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As Will is stuck in the Upside Down, he can still communicate with his mom, Joyce, through the Christmas lights (he can turn them on and off with his mind). He can't directly tell his mom where ... | instruction | 0 | 51,040 | 21 | 102,080 |
Yes | output | 1 | 51,040 | 21 | 102,081 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As Will is stuck in the Upside Down, he can still communicate with his mom, Joyce, through the Christmas lights (he can turn them on and off with his mind). He can't directly tell his mom where ... | instruction | 0 | 51,041 | 21 | 102,082 |
Yes | output | 1 | 51,041 | 21 | 102,083 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As Will is stuck in the Upside Down, he can still communicate with his mom, Joyce, through the Christmas lights (he can turn them on and off with his mind). He can't directly tell his mom where ... | instruction | 0 | 51,042 | 21 | 102,084 |
Yes | output | 1 | 51,042 | 21 | 102,085 |
Provide a correct Python 3 solution for this coding contest problem.
You are given a string $S$, which is balanced parentheses with a star symbol '*' inserted.
Any balanced parentheses can be constructed using the following rules:
* An empty string is balanced.
* Concatenation of two balanced parentheses is balanced... | instruction | 0 | 52,152 | 21 | 104,304 |
"Correct Solution:
```
line = input()
lebel = 0
for i in range(len(line)):
if line[i] == '*':
print(lebel)
break
if line[i] == '(':
lebel += 1
elif line[i] == ')':
lebel -= 1
``` | output | 1 | 52,152 | 21 | 104,305 |
Provide tags and a correct Python 3 solution for this coding contest problem.
As Famil Door’s birthday is coming, some of his friends (like Gabi) decided to buy a present for him. His friends are going to buy a string consisted of round brackets since Famil Door loves string of brackets of length n more than any other... | instruction | 0 | 52,627 | 21 | 105,254 |
Tags: dp, strings
Correct Solution:
```
def ij(s):
i = 0
j = 0
for c in s:
if c == ')':
if j > 0:
j -= 1
else:
i += 1
else:
j += 1
return i, j
K = 10**9 + 7
def ways(n, s):
I, J = ij(s)
f = n - len(s) - I - J... | output | 1 | 52,627 | 21 | 105,255 |
Provide tags and a correct Python 3 solution for this coding contest problem.
As Famil Door’s birthday is coming, some of his friends (like Gabi) decided to buy a present for him. His friends are going to buy a string consisted of round brackets since Famil Door loves string of brackets of length n more than any other... | instruction | 0 | 52,628 | 21 | 105,256 |
Tags: dp, strings
Correct Solution:
```
import os
import sys
from io import BytesIO, IOBase
# import string
# characters = string.ascii_lowercase
# digits = string.digits
# sys.setrecursionlimit(int(1e6))
# dir = [-1,0,1,0,-1]
# moves = 'NESW'
inf = float('inf')
from functools import cmp_to_key
from collections import... | output | 1 | 52,628 | 21 | 105,257 |
Provide tags and a correct Python 3 solution for this coding contest problem.
As Famil Door’s birthday is coming, some of his friends (like Gabi) decided to buy a present for him. His friends are going to buy a string consisted of round brackets since Famil Door loves string of brackets of length n more than any other... | instruction | 0 | 52,629 | 21 | 105,258 |
Tags: dp, strings
Correct Solution:
```
n, m = map(int, input().split())
s = input()
mod = 10 ** 9 + 7
c = b = 0
for x in s:
c += (x == '(') * 2 - 1
b = min(c, b)
d = [[1]]
for i in range(n - m):
nd = d[-1][1:] + [0] * 2
for j in range(1, i + 2):
nd[j] = (nd[j] + d[-1][j-1]) % mod
d.append(n... | output | 1 | 52,629 | 21 | 105,259 |
Provide tags and a correct Python 3 solution for this coding contest problem.
As Famil Door’s birthday is coming, some of his friends (like Gabi) decided to buy a present for him. His friends are going to buy a string consisted of round brackets since Famil Door loves string of brackets of length n more than any other... | instruction | 0 | 52,630 | 21 | 105,260 |
Tags: dp, strings
Correct Solution:
```
from sys import stdin
n,m=map(int, stdin.readline().strip().split())
s=input()
dp=[[0 for i in range(2004)] for j in range(2004)]
mod=10**9+7
d=n-m
ans=0
b=0
d1=0
for i in s:
if i=='(':
b+=1
else:
b-=1
if b<d1:
d1=b
d1=-d1
dp[0][0]=1
d+=1
try:... | output | 1 | 52,630 | 21 | 105,261 |
Provide tags and a correct Python 3 solution for this coding contest problem.
As Famil Door’s birthday is coming, some of his friends (like Gabi) decided to buy a present for him. His friends are going to buy a string consisted of round brackets since Famil Door loves string of brackets of length n more than any other... | instruction | 0 | 52,631 | 21 | 105,262 |
Tags: dp, strings
Correct Solution:
```
n, m = map(int, input().split())
s = input()
mod = 10 ** 9 + 7
c, b, ans, d, k = 0, 0, 0, [[1]], n - m
for i in s:
c += (i == '(') * 2 - 1
b = min(c, b)
for i in range(n - m):
nd = d[-1][1:] + [0] * 2
for j in range(1, i + 2):
nd[j] = (nd[j] + d[-1][j - 1]... | output | 1 | 52,631 | 21 | 105,263 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As Famil Door’s birthday is coming, some of his friends (like Gabi) decided to buy a present for him. His friends are going to buy a string consisted of round brackets since Famil Door loves str... | instruction | 0 | 52,632 | 21 | 105,264 |
No | output | 1 | 52,632 | 21 | 105,265 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As Famil Door’s birthday is coming, some of his friends (like Gabi) decided to buy a present for him. His friends are going to buy a string consisted of round brackets since Famil Door loves str... | instruction | 0 | 52,633 | 21 | 105,266 |
No | output | 1 | 52,633 | 21 | 105,267 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As Famil Door’s birthday is coming, some of his friends (like Gabi) decided to buy a present for him. His friends are going to buy a string consisted of round brackets since Famil Door loves str... | instruction | 0 | 52,634 | 21 | 105,268 |
No | output | 1 | 52,634 | 21 | 105,269 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As Famil Door’s birthday is coming, some of his friends (like Gabi) decided to buy a present for him. His friends are going to buy a string consisted of round brackets since Famil Door loves str... | instruction | 0 | 52,635 | 21 | 105,270 |
No | output | 1 | 52,635 | 21 | 105,271 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A bracket sequence is called regular if it is possible to obtain correct arithmetic expression by inserting characters + and 1 into this sequence. For example, sequences (())(), () and (()(())) are regular, while )(, (() and (()))( are not. ... | instruction | 0 | 55,796 | 21 | 111,592 |
Tags: constructive algorithms, greedy
Correct Solution:
```
t=int(input())
for o in range(t):
s=list(input())
c=0
if len(s)%2!=0:
print('NO')
elif s[0]==')':
print('NO')
elif s[len(s)-1]=='(':
print('NO')
else:
print('YES')
``` | output | 1 | 55,796 | 21 | 111,593 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A bracket sequence is called regular if it is possible to obtain correct arithmetic expression by inserting characters + and 1 into this sequence. For example, sequences (())(), () and (()(())) are regular, while )(, (() and (()))( are not. ... | instruction | 0 | 55,797 | 21 | 111,594 |
Tags: constructive algorithms, greedy
Correct Solution:
```
from math import *
from collections import deque
from copy import deepcopy
import sys
def inp(): return sys.stdin.readline().rstrip("\r\n") #for fast input
def multi(): return map(int,input().split())
def strmulti(): return map(str, inp().split())
def lis(): r... | output | 1 | 55,797 | 21 | 111,595 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A bracket sequence is called regular if it is possible to obtain correct arithmetic expression by inserting characters + and 1 into this sequence. For example, sequences (())(), () and (()(())) are regular, while )(, (() and (()))( are not. ... | instruction | 0 | 55,798 | 21 | 111,596 |
Tags: constructive algorithms, greedy
Correct Solution:
```
for _ in range(int(input())):
s = input()
if len(s) % 2 != 0:
print("NO")
elif s.startswith(')'):
print("NO")
elif s.endswith('('):
print("NO")
else:
lb = [s.count('('), s.count(')')]
qb = s.count('?'... | output | 1 | 55,798 | 21 | 111,597 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A bracket sequence is called regular if it is possible to obtain correct arithmetic expression by inserting characters + and 1 into this sequence. For example, sequences (())(), () and (()(())) are regular, while )(, (() and (()))( are not. ... | instruction | 0 | 55,799 | 21 | 111,598 |
Tags: constructive algorithms, greedy
Correct Solution:
```
for _ in range(int(input())):
s=input()
if len(s)%2==1:
print("NO")
else:
if s[0]==')' or s[-1]=='(':
print("NO")
else:
print("YES")
``` | output | 1 | 55,799 | 21 | 111,599 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A bracket sequence is called regular if it is possible to obtain correct arithmetic expression by inserting characters + and 1 into this sequence. For example, sequences (())(), () and (()(())) are regular, while )(, (() and (()))( are not. ... | instruction | 0 | 55,800 | 21 | 111,600 |
Tags: constructive algorithms, greedy
Correct Solution:
```
t=int(input())
for _ in range(t):
s=input()
l=r=q=0
for c in s:
if c == '(': l += 1
if c == ')': r += 1
if c == '?': q += 1
if (l+r+q)%2:
print('NO')
continue
lq = (l+r+q)//2-l
if not 0 <= lq <= q... | output | 1 | 55,800 | 21 | 111,601 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A bracket sequence is called regular if it is possible to obtain correct arithmetic expression by inserting characters + and 1 into this sequence. For example, sequences (())(), () and (()(())) are regular, while )(, (() and (()))( are not. ... | instruction | 0 | 55,801 | 21 | 111,602 |
Tags: constructive algorithms, greedy
Correct Solution:
```
for _ in range(int(input())):
s = input()
if len(s) % 2 == 0 and s[0] != ')' and s[-1] != '(':
print('YES')
else:
print("NO")
``` | output | 1 | 55,801 | 21 | 111,603 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A bracket sequence is called regular if it is possible to obtain correct arithmetic expression by inserting characters + and 1 into this sequence. For example, sequences (())(), () and (()(())) are regular, while )(, (() and (()))( are not. ... | instruction | 0 | 55,802 | 21 | 111,604 |
Tags: constructive algorithms, greedy
Correct Solution:
```
import math
from sys import *
#input=stdin.readline
def solve():
#n=int(input())
s=input()
#n,k=map(int,input().split())
##m=int(input())
#l=list(map(int,input().split()))
#l1=list(map(int,input().split()))
#zero=s.count('0')
... | output | 1 | 55,802 | 21 | 111,605 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A bracket sequence is called regular if it is possible to obtain correct arithmetic expression by inserting characters + and 1 into this sequence. For example, sequences (())(), () and (()(())) are regular, while )(, (() and (()))( are not. ... | instruction | 0 | 55,803 | 21 | 111,606 |
Tags: constructive algorithms, greedy
Correct Solution:
```
def valid_brackets(s):
openBrackets = 0
for i in s:
if openBrackets < 0:
return False
if i == "(":
openBrackets += 1
elif i == ")":
openBrackets -= 1
if openBrackets != 0:
retu... | output | 1 | 55,803 | 21 | 111,607 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A bracket sequence is called regular if it is possible to obtain correct arithmetic expression by inserting characters + and 1 into this sequence. For example, sequences (())(), () and (()(())) ... | instruction | 0 | 55,804 | 21 | 111,608 |
Yes | output | 1 | 55,804 | 21 | 111,609 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A bracket sequence is called regular if it is possible to obtain correct arithmetic expression by inserting characters + and 1 into this sequence. For example, sequences (())(), () and (()(())) ... | instruction | 0 | 55,805 | 21 | 111,610 |
Yes | output | 1 | 55,805 | 21 | 111,611 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A bracket sequence is called regular if it is possible to obtain correct arithmetic expression by inserting characters + and 1 into this sequence. For example, sequences (())(), () and (()(())) ... | instruction | 0 | 55,806 | 21 | 111,612 |
Yes | output | 1 | 55,806 | 21 | 111,613 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A bracket sequence is called regular if it is possible to obtain correct arithmetic expression by inserting characters + and 1 into this sequence. For example, sequences (())(), () and (()(())) ... | instruction | 0 | 55,807 | 21 | 111,614 |
Yes | output | 1 | 55,807 | 21 | 111,615 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A bracket sequence is called regular if it is possible to obtain correct arithmetic expression by inserting characters + and 1 into this sequence. For example, sequences (())(), () and (()(())) ... | instruction | 0 | 55,808 | 21 | 111,616 |
No | output | 1 | 55,808 | 21 | 111,617 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A bracket sequence is called regular if it is possible to obtain correct arithmetic expression by inserting characters + and 1 into this sequence. For example, sequences (())(), () and (()(())) ... | instruction | 0 | 55,809 | 21 | 111,618 |
No | output | 1 | 55,809 | 21 | 111,619 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A bracket sequence is called regular if it is possible to obtain correct arithmetic expression by inserting characters + and 1 into this sequence. For example, sequences (())(), () and (()(())) ... | instruction | 0 | 55,810 | 21 | 111,620 |
No | output | 1 | 55,810 | 21 | 111,621 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A bracket sequence is called regular if it is possible to obtain correct arithmetic expression by inserting characters + and 1 into this sequence. For example, sequences (())(), () and (()(())) ... | instruction | 0 | 55,811 | 21 | 111,622 |
No | output | 1 | 55,811 | 21 | 111,623 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A string is called bracket sequence if it does not contain any characters other than "(" and ")". A bracket sequence is called regular (shortly, RBS) if it is possible to obtain correct arithmetic expression by inserting characters "+" and "... | instruction | 0 | 56,442 | 21 | 112,884 |
Tags: constructive algorithms, greedy
Correct Solution:
```
input()
brackets = list(input())
a = 0
b = 0
result =[]
for bracket in brackets:
if bracket == '(':
if a == b:
a+=1
result.append("1")
else:
b+=1
result.append("0")
else:
if a>b... | output | 1 | 56,442 | 21 | 112,885 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A string is called bracket sequence if it does not contain any characters other than "(" and ")". A bracket sequence is called regular (shortly, RBS) if it is possible to obtain correct arithmetic expression by inserting characters "+" and "... | instruction | 0 | 56,443 | 21 | 112,886 |
Tags: constructive algorithms, greedy
Correct Solution:
```
from collections import deque
n = int(input())
s = input()
left = deque([])
ans = [-1]*n
flag = True
for i in range(n):
if s[i]=='(':
left.append(i)
else:
if flag:
l_idx = left.popleft()
ans[l_idx] = 0
... | output | 1 | 56,443 | 21 | 112,887 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A string is called bracket sequence if it does not contain any characters other than "(" and ")". A bracket sequence is called regular (shortly, RBS) if it is possible to obtain correct arithmetic expression by inserting characters "+" and "... | instruction | 0 | 56,444 | 21 | 112,888 |
Tags: constructive algorithms, greedy
Correct Solution:
```
n = int(input())
s = str(input())
cum = [0]*(n+1)
depth = [0]*(n+1)
for i in range(n):
if s[i] == '(':
cum[i+1] = cum[i]+1
depth[i+1] = cum[i+1]
else:
depth[i+1] = cum[i]
cum[i+1] = cum[i]-1
#print(cum)
#print(depth)
ans... | output | 1 | 56,444 | 21 | 112,889 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A string is called bracket sequence if it does not contain any characters other than "(" and ")". A bracket sequence is called regular (shortly, RBS) if it is possible to obtain correct arithmetic expression by inserting characters "+" and "... | instruction | 0 | 56,445 | 21 | 112,890 |
Tags: constructive algorithms, greedy
Correct Solution:
```
n = int(input())
s = input()
ans = []
l = 0
for i in range(n):
if s[i] == '(':
l += 1
ans.append(l % 2)
if s[i] == ')':
ans.append(l% 2)
l -=1
print(''.join([str(i) for i in ans]))
``` | output | 1 | 56,445 | 21 | 112,891 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A string is called bracket sequence if it does not contain any characters other than "(" and ")". A bracket sequence is called regular (shortly, RBS) if it is possible to obtain correct arithmetic expression by inserting characters "+" and "... | instruction | 0 | 56,446 | 21 | 112,892 |
Tags: constructive algorithms, greedy
Correct Solution:
```
n = int(input())
A = input()
stack = []
for i in A:
if i == '(':
if len(stack) == 0 or stack[-1] == 1:
stack.append(0)
print(0, end='')
else:
stack.append(1)
print(1, end='')
else:
... | output | 1 | 56,446 | 21 | 112,893 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A string is called bracket sequence if it does not contain any characters other than "(" and ")". A bracket sequence is called regular (shortly, RBS) if it is possible to obtain correct arithmetic expression by inserting characters "+" and "... | instruction | 0 | 56,447 | 21 | 112,894 |
Tags: constructive algorithms, greedy
Correct Solution:
```
a=int(input())
red=0
blue=0
li=[]
if a==2:
input()
print(11)
else:
Evenprnths=input()
for elem in Evenprnths:
if elem =="(":
#todo add this to the one having least open parantheses of if draw then red
if red>blue... | output | 1 | 56,447 | 21 | 112,895 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A string is called bracket sequence if it does not contain any characters other than "(" and ")". A bracket sequence is called regular (shortly, RBS) if it is possible to obtain correct arithmetic expression by inserting characters "+" and "... | instruction | 0 | 56,448 | 21 | 112,896 |
Tags: constructive algorithms, greedy
Correct Solution:
```
import os
import sys
from io import BytesIO, IOBase
BUFSIZE = 8192
class FastIO(IOBase):
newlines = 0
def __init__(self, file):
self._fd = file.fileno()
self.buffer = BytesIO()
self.writable = "x" in file.mode or "r" not in ... | output | 1 | 56,448 | 21 | 112,897 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A string is called bracket sequence if it does not contain any characters other than "(" and ")". A bracket sequence is called regular (shortly, RBS) if it is possible to obtain correct arithmetic expression by inserting characters "+" and "... | instruction | 0 | 56,449 | 21 | 112,898 |
Tags: constructive algorithms, greedy
Correct Solution:
```
n = int(input())
l = input()
r = 0
b = 0
maxb = 0
for j in range(n):
if(l[j]=='('):
if(r>b):
b+=1
print("1",end="")
else:
r+=1
print("0",end="")
else:
if(r<b):
b-=1
print("1",end="")
else:
r-=1
print("0",end="")
print()
``` | output | 1 | 56,449 | 21 | 112,899 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A string is called bracket sequence if it does not contain any characters other than "(" and ")". A bracket sequence is called regular (shortly, RBS) if it is possible to obtain correct arithmet... | instruction | 0 | 56,450 | 21 | 112,900 |
Yes | output | 1 | 56,450 | 21 | 112,901 |
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