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 |
|---|---|---|---|---|---|
Provide tags and a correct Python 3 solution for this coding contest problem.
Petya's friends made him a birthday present — a bracket sequence. Petya was quite disappointed with his gift, because he dreamed of correct bracket sequence, yet he told his friends nothing about his dreams and decided to fix present himself... | instruction | 0 | 30,150 | 21 | 60,300 |
Tags: data structures, greedy
Correct Solution:
```
ll=lambda:map(int,input().split())
t=lambda:int(input())
ss=lambda:input()
#from math import log10 ,log2,ceil,factorial as f,gcd
#from itertools import combinations_with_replacement as cs
#from functools import reduce
#from bisect import bisect_right as br,bisect_lef... | output | 1 | 30,150 | 21 | 60,301 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Petya's friends made him a birthday present — a bracket sequence. Petya was quite disappointed with his gift, because he dreamed of correct bracket sequence, yet he told his friends nothing about his dreams and decided to fix present himself... | instruction | 0 | 30,151 | 21 | 60,302 |
Tags: data structures, greedy
Correct Solution:
```
def solve(s,n):
if len(s)%2:
return "NO"
stack = []
open = s.count("(")
close = s.count(")")
if open != close:
return "NO"
o,c = 0,0
for i in s:
if i == "(":
o += 1
else:
c += 1
... | output | 1 | 30,151 | 21 | 60,303 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Petya's friends made him a birthday present — a bracket sequence. Petya was quite disappointed with his gift, because he dreamed of correct bracket sequence, yet he told his friends nothing about his dreams and decided to fix present himself... | instruction | 0 | 30,152 | 21 | 60,304 |
Tags: data structures, greedy
Correct Solution:
```
import sys
import math
input = sys.stdin.readline
n=int(input())
s=list(input())
if s.count("(")==s.count(")"):
op=0
cl=0
flag=True
for i in range(n):
if s[i]=="(":
op+=1
else:
cl+=1
if cl-op>=2:
print("No")
flag=False
break
if flag:
prin... | output | 1 | 30,152 | 21 | 60,305 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petya's friends made him a birthday present — a bracket sequence. Petya was quite disappointed with his gift, because he dreamed of correct bracket sequence, yet he told his friends nothing abou... | instruction | 0 | 30,153 | 21 | 60,306 |
Yes | output | 1 | 30,153 | 21 | 60,307 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petya's friends made him a birthday present — a bracket sequence. Petya was quite disappointed with his gift, because he dreamed of correct bracket sequence, yet he told his friends nothing abou... | instruction | 0 | 30,154 | 21 | 60,308 |
Yes | output | 1 | 30,154 | 21 | 60,309 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petya's friends made him a birthday present — a bracket sequence. Petya was quite disappointed with his gift, because he dreamed of correct bracket sequence, yet he told his friends nothing abou... | instruction | 0 | 30,155 | 21 | 60,310 |
Yes | output | 1 | 30,155 | 21 | 60,311 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petya's friends made him a birthday present — a bracket sequence. Petya was quite disappointed with his gift, because he dreamed of correct bracket sequence, yet he told his friends nothing abou... | instruction | 0 | 30,156 | 21 | 60,312 |
Yes | output | 1 | 30,156 | 21 | 60,313 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petya's friends made him a birthday present — a bracket sequence. Petya was quite disappointed with his gift, because he dreamed of correct bracket sequence, yet he told his friends nothing abou... | instruction | 0 | 30,157 | 21 | 60,314 |
No | output | 1 | 30,157 | 21 | 60,315 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petya's friends made him a birthday present — a bracket sequence. Petya was quite disappointed with his gift, because he dreamed of correct bracket sequence, yet he told his friends nothing abou... | instruction | 0 | 30,158 | 21 | 60,316 |
No | output | 1 | 30,158 | 21 | 60,317 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petya's friends made him a birthday present — a bracket sequence. Petya was quite disappointed with his gift, because he dreamed of correct bracket sequence, yet he told his friends nothing abou... | instruction | 0 | 30,159 | 21 | 60,318 |
No | output | 1 | 30,159 | 21 | 60,319 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Petya's friends made him a birthday present — a bracket sequence. Petya was quite disappointed with his gift, because he dreamed of correct bracket sequence, yet he told his friends nothing abou... | instruction | 0 | 30,160 | 21 | 60,320 |
No | output | 1 | 30,160 | 21 | 60,321 |
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 «(... | instruction | 0 | 30,370 | 21 | 60,740 |
Tags: greedy
Correct Solution:
```
#https://codeforces.com/contest/26/problem/B
s=input()
stack=[]
cnt=0
m=0
for i in s:
if i=='(':
stack.append(i)
elif i==')':
if len(stack)!=0:
stack.pop()
cnt+=2
#m=max(m,cnt)
print(cnt)
``` | output | 1 | 30,370 | 21 | 60,741 |
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 «(... | instruction | 0 | 30,371 | 21 | 60,742 |
Tags: 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 file.mode
self.writ... | output | 1 | 30,371 | 21 | 60,743 |
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 «(... | instruction | 0 | 30,372 | 21 | 60,744 |
Tags: greedy
Correct Solution:
```
from collections import deque
def solve(s):
d = deque()
n = len(s)
cnt = 0
for i in range(n):
if s[i] == '(':
d.append(s[i])
else:
if s[i] == ')':
if len(d) > 0 and d[-1] == '(':
d.pop()... | output | 1 | 30,372 | 21 | 60,745 |
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 «(... | instruction | 0 | 30,373 | 21 | 60,746 |
Tags: greedy
Correct Solution:
```
ans = cnt = 0
for c in input():
if c == '(':
cnt += 1
elif(c == ')'):
if cnt > 0:
cnt -= 1
ans += 2
print(ans)
``` | output | 1 | 30,373 | 21 | 60,747 |
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 «(... | instruction | 0 | 30,374 | 21 | 60,748 |
Tags: greedy
Correct Solution:
```
b = input()
i = 0
N = 0
x = 0
while(i < len(b)):
if(b[i] == '('):
x = x + 1
else:
x = x - 1
if(x >= 0):
N = N + 2
else:
x = 0
# print(b[i],x,N)
# input()
i = i + 1
print(N)
``` | output | 1 | 30,374 | 21 | 60,749 |
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 «(... | instruction | 0 | 30,375 | 21 | 60,750 |
Tags: greedy
Correct Solution:
```
ch=str(input())
j=0
par=[]
for i in range (len(ch)):
if ch[i]=='(':
par.append(ch[i])
else:
if ch[i]==')' and len(par)!=0:
par.pop()
j+=2
print(j)
``` | output | 1 | 30,375 | 21 | 60,751 |
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 «(... | instruction | 0 | 30,376 | 21 | 60,752 |
Tags: greedy
Correct Solution:
```
k=2
if k!=0:
seq = input()
count = 0
maxn = 0
for i in range(len(seq)):
if(seq[i] == "("):
count += 1
elif(count > 0):
count -= 1
maxn += 2
print(maxn)
``` | output | 1 | 30,376 | 21 | 60,753 |
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 «(... | instruction | 0 | 30,377 | 21 | 60,754 |
Tags: greedy
Correct Solution:
```
def check(n):
e = 0
b = 0
for i in n:
if i == '(':
b += 1
if i == ')' and b > 0:
e += 1
b -= 1
return e
n = input()
print(check(n)*2)
``` | output | 1 | 30,377 | 21 | 60,755 |
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 | 30,378 | 21 | 60,756 |
Yes | output | 1 | 30,378 | 21 | 60,757 |
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 | 30,379 | 21 | 60,758 |
Yes | output | 1 | 30,379 | 21 | 60,759 |
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 | 30,380 | 21 | 60,760 |
Yes | output | 1 | 30,380 | 21 | 60,761 |
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 | 30,381 | 21 | 60,762 |
Yes | output | 1 | 30,381 | 21 | 60,763 |
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 | 30,382 | 21 | 60,764 |
No | output | 1 | 30,382 | 21 | 60,765 |
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 | 30,383 | 21 | 60,766 |
No | output | 1 | 30,383 | 21 | 60,767 |
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 | 30,384 | 21 | 60,768 |
No | output | 1 | 30,384 | 21 | 60,769 |
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 | 30,385 | 21 | 60,770 |
No | output | 1 | 30,385 | 21 | 60,771 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Implication is a function of two logical arguments, its value is false if and only if the value of the first argument is true and the value of the second argument is false.
Implication is written by using character '<image>', and the argum... | instruction | 0 | 32,940 | 21 | 65,880 |
Tags: constructive algorithms, greedy, implementation, math
Correct Solution:
```
x = int(input())
seq = list(map(int, input().split(' ')))
if seq == [0]:
print("YES")
print(0)
elif seq == [0, 0]:
print("NO")
elif seq == [1, 0]:
print("YES")
print('1->0')
elif seq == [0, 0, 0]:
print("YES")... | output | 1 | 32,940 | 21 | 65,881 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Implication is a function of two logical arguments, its value is false if and only if the value of the first argument is true and the value of the second argument is false.
Implication is written by using character '<image>', and the argum... | instruction | 0 | 32,941 | 21 | 65,882 |
Tags: constructive algorithms, greedy, implementation, math
Correct Solution:
```
# https://codeforces.com/contest/550/problem/E
# TLE
from collections import deque
def solve():
n = int(input())
a = list(map(int, input().split()))
S = n - sum(a)
if a[-1] != 0:
return 'NO', None
if ... | output | 1 | 32,941 | 21 | 65,883 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Implication is a function of two logical arguments, its value is false if and only if the value of the first argument is true and the value of the second argument is false.
Implication is written by using character '<image>', and the argum... | instruction | 0 | 32,942 | 21 | 65,884 |
Tags: constructive algorithms, greedy, implementation, math
Correct Solution:
```
n=int(input())
a=list(input().split())
if (a[-1]>'0') or (len(a)>1 and a.count('0')==2 and a[-1]<'1' and a[-2]<'1'): print("NO")
else:
if len(a)>1:
if (a[-2]<'1'):
a[-2]+='))'
b=a[:-2]
b.reverse()
p=len(a)-3-b.index('0')
... | output | 1 | 32,942 | 21 | 65,885 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Implication is a function of two logical arguments, its value is false if and only if the value of the first argument is true and the value of the second argument is false.
Implication is written by using character '<image>', and the argum... | instruction | 0 | 32,943 | 21 | 65,886 |
Tags: constructive algorithms, greedy, implementation, math
Correct Solution:
```
n=int(input())
s=input().split()
t=[]
j=-1
for i in range(n):
t+=[int(s[i])]
if int(s[i])==1:j=i
if t[n-1]==1:print("NO")
elif j==-1:
if n==1:
print("YES")
print(0)
elif n==2:
print("NO")
else:
print("YES")
for i in range(n... | output | 1 | 32,943 | 21 | 65,887 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Implication is a function of two logical arguments, its value is false if and only if the value of the first argument is true and the value of the second argument is false.
Implication is written by using character '<image>', and the argum... | instruction | 0 | 32,944 | 21 | 65,888 |
Tags: constructive algorithms, greedy, implementation, math
Correct Solution:
```
def f(a):
if len(a) == 1:
if a[0] == 0:
print("YES\n0")
return
else:
print("NO")
return
if a[-1] == 1:
print("NO")
return
if a[-2] == 1:
print("YES")
print("->".join(str(x) for x in a))
return
elif len(a) == ... | output | 1 | 32,944 | 21 | 65,889 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Implication is a function of two logical arguments, its value is false if and only if the value of the first argument is true and the value of the second argument is false.
Implication is written by using character '<image>', and the argum... | instruction | 0 | 32,945 | 21 | 65,890 |
Tags: constructive algorithms, greedy, implementation, math
Correct Solution:
```
import math,string,itertools,fractions,heapq,collections,re,array,bisect
from itertools import chain, dropwhile, permutations, combinations
from collections import defaultdict, deque
def VI(): return list(map(int,input().split()))
def r... | output | 1 | 32,945 | 21 | 65,891 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Implication is a function of two logical arguments, its value is false if and only if the value of the first argument is true and the value of the second argument is false.
Implication is written by using character '<image>', and the argum... | instruction | 0 | 32,946 | 21 | 65,892 |
Tags: constructive algorithms, greedy, implementation, math
Correct Solution:
```
n = int(input())
v = input().split()
if v[-1] != '0':
print("NO")
else:
if n >= 2 and v[-2] == "0":
for i in range(n-3, -1, -1):
if v[i] == "0":
v[i] = "(" + v[i]
v[i+1] = "(" +... | output | 1 | 32,946 | 21 | 65,893 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Implication is a function of two logical arguments, its value is false if and only if the value of the first argument is true and the value of the second argument is false.
Implication is written by using character '<image>', and the argum... | instruction | 0 | 32,947 | 21 | 65,894 |
Tags: constructive algorithms, greedy, implementation, math
Correct Solution:
```
import sys
input = []
input_index = 0
def next(type, number = None):
def next():
global input, input_index
while input_index == len(input):
if sys.stdin:
input = sys.stdin.readline().split()
input_ind... | output | 1 | 32,947 | 21 | 65,895 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Implication is a function of two logical arguments, its value is false if and only if the value of the first argument is true and the value of the second argument is false.
Implication is writ... | instruction | 0 | 32,948 | 21 | 65,896 |
Yes | output | 1 | 32,948 | 21 | 65,897 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Implication is a function of two logical arguments, its value is false if and only if the value of the first argument is true and the value of the second argument is false.
Implication is writ... | instruction | 0 | 32,949 | 21 | 65,898 |
Yes | output | 1 | 32,949 | 21 | 65,899 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Implication is a function of two logical arguments, its value is false if and only if the value of the first argument is true and the value of the second argument is false.
Implication is writ... | instruction | 0 | 32,950 | 21 | 65,900 |
Yes | output | 1 | 32,950 | 21 | 65,901 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Implication is a function of two logical arguments, its value is false if and only if the value of the first argument is true and the value of the second argument is false.
Implication is writ... | instruction | 0 | 32,951 | 21 | 65,902 |
Yes | output | 1 | 32,951 | 21 | 65,903 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Implication is a function of two logical arguments, its value is false if and only if the value of the first argument is true and the value of the second argument is false.
Implication is writ... | instruction | 0 | 32,952 | 21 | 65,904 |
No | output | 1 | 32,952 | 21 | 65,905 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Implication is a function of two logical arguments, its value is false if and only if the value of the first argument is true and the value of the second argument is false.
Implication is writ... | instruction | 0 | 32,953 | 21 | 65,906 |
No | output | 1 | 32,953 | 21 | 65,907 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Implication is a function of two logical arguments, its value is false if and only if the value of the first argument is true and the value of the second argument is false.
Implication is writ... | instruction | 0 | 32,954 | 21 | 65,908 |
No | output | 1 | 32,954 | 21 | 65,909 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Implication is a function of two logical arguments, its value is false if and only if the value of the first argument is true and the value of the second argument is false.
Implication is writ... | instruction | 0 | 32,955 | 21 | 65,910 |
No | output | 1 | 32,955 | 21 | 65,911 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The development of a text editor is a hard problem. You need to implement an extra module for brackets coloring in text.
Your editor consists of a line with infinite length and cursor, which points to the current character. Please note that... | instruction | 0 | 33,452 | 21 | 66,904 |
Tags: data structures, implementation
Correct Solution:
```
import os, sys, math
def solve(seq):
result = []
# +d, min +d, max +d
max_depth_allowed = min(20, int(math.log2(max(1, seq.count('R')))) + 1)
dbase_delta_d = [ 0 ] * (2 ** (max_depth_allowed + 1))
dbase_min_d = [ 0 ] * (2 ** (max_depth_allowed + 1))
d... | output | 1 | 33,452 | 21 | 66,905 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The development of a text editor is a hard problem. You need to implement an extra module for brackets coloring in text.
Your editor consists of a line with infinite length and cursor, which points to the current character. Please note that... | instruction | 0 | 33,453 | 21 | 66,906 |
Tags: data structures, implementation
Correct Solution:
```
'''input
11
(R)R(R)Ra)c
'''
# https://codeforces.com/blog/entry/18051
# Min = minimum prefix sum instead of minimum value
class SegmentTree:
def __init__(self, n, arr=[]):
self.n = n
self.tsum = [0] * (2 * n)
self.tmin = [0] * (2 ... | output | 1 | 33,453 | 21 | 66,907 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The development of a text editor is a hard problem. You need to implement an extra module for brackets coloring in text.
Your editor consists of a line with infinite length and cursor, which points to the current character. Please note that... | instruction | 0 | 33,454 | 21 | 66,908 |
Tags: data structures, implementation
Correct Solution:
```
# reproduction of solution 66039386 by @windhunterSB
import sys
# inf = open('input.txt', 'r')
# reader = (line.rstrip() for line in inf)
reader = (s.rstrip() for s in sys.stdin)
n = int(next(reader))
operations = next(reader)
# inf.close()
left_sum ... | output | 1 | 33,454 | 21 | 66,909 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The development of a text editor is a hard problem. You need to implement an extra module for brackets coloring in text.
Your editor consists of a line with infinite length and cursor, which points to the current character. Please note that... | instruction | 0 | 33,455 | 21 | 66,910 |
Tags: data structures, implementation
Correct Solution:
```
# reproduction of solution № 66039386 by @windhunterSB
import sys
# inf = open('input.txt', 'r')
# reader = (line.rstrip() for line in inf)
reader = (s.rstrip() for s in sys.stdin)
n = int(next(reader))
operations = next(reader)
# inf.close()
left_su... | output | 1 | 33,455 | 21 | 66,911 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The development of a text editor is a hard problem. You need to implement an extra module for brackets coloring in text.
Your editor consists of a line with infinite length and cursor, which points to the current character. Please note that... | instruction | 0 | 33,456 | 21 | 66,912 |
Tags: data structures, implementation
Correct Solution:
```
# reproduction of solution № 66039386 by @windhunterSB
import sys
# inf = open('input.txt', 'r')
# reader = (line.rstrip() for line in inf)
reader = (s.rstrip() for s in sys.stdin)
n = int(next(reader))
operations = next(reader)
# inf.close()
left_sum = [... | output | 1 | 33,456 | 21 | 66,913 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The development of a text editor is a hard problem. You need to implement an extra module for brackets coloring in text.
Your editor consists of a line with infinite length and cursor, which points to the current character. Please note that... | instruction | 0 | 33,457 | 21 | 66,914 |
Tags: data structures, implementation
Correct Solution:
```
'''input
11
(R)R(R)Ra)c
'''
# MODIFIED SEGMENT TREE (MIN = MINIMUM PREFIX SUM instead of MINIMUM ELEMENT IN PREFIX)
class SegmentTree:
def __init__(self, n, arr=[]):
self.n = n
self.tsum = [0] * (2 * n)
self.tmin = [0] * (2 * n)
... | output | 1 | 33,457 | 21 | 66,915 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The development of a text editor is a hard problem. You need to implement an extra module for brackets coloring in text.
Your editor consists of a line with infinite length and cursor, which points to the current character. Please note that... | instruction | 0 | 33,458 | 21 | 66,916 |
Tags: data structures, implementation
Correct Solution:
```
import traceback
def push(stack, delta):
if stack:
_, d, mn, mx = stack[-1]
else:
d, mn, mx = 0, 0, 0
stack.append((delta, d + delta, min(d + delta, mn), max(d + delta, mx)))
def main():
n = int(input())
ss = input()
l... | output | 1 | 33,458 | 21 | 66,917 |
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