message stringlengths 2 28.7k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 21 109k | cluster float64 7 7 | __index_level_0__ int64 42 217k |
|---|---|---|---|---|---|
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You have a long fence which consists of n sections. Unfortunately, it is not painted, so you decided to hire q painters to paint it. i-th painter will paint all sections x such that l_i ≤ x ≤ r_... | instruction | 0 | 55,662 | 7 | 111,324 |
No | output | 1 | 55,662 | 7 | 111,325 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You have a long fence which consists of n sections. Unfortunately, it is not painted, so you decided to hire q painters to paint it. i-th painter will paint all sections x such that l_i ≤ x ≤ r_... | instruction | 0 | 55,663 | 7 | 111,326 |
No | output | 1 | 55,663 | 7 | 111,327 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You have a long fence which consists of n sections. Unfortunately, it is not painted, so you decided to hire q painters to paint it. i-th painter will paint all sections x such that l_i ≤ x ≤ r_... | instruction | 0 | 55,664 | 7 | 111,328 |
No | output | 1 | 55,664 | 7 | 111,329 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You have a long fence which consists of n sections. Unfortunately, it is not painted, so you decided to hire q painters to paint it. i-th painter will paint all sections x such that l_i ≤ x ≤ r_... | instruction | 0 | 55,665 | 7 | 111,330 |
No | output | 1 | 55,665 | 7 | 111,331 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Nothing is eternal in the world, Kostya understood it on the 7-th of January when he saw partially dead four-color garland.
Now he has a goal to replace dead light bulbs, however he doesn't know how many light bulbs for each color are requi... | instruction | 0 | 56,087 | 7 | 112,174 |
Tags: brute force, implementation, number theory
Correct Solution:
```
s=input()+' '
d,ans,DD={},0,{"R":0,"B":0,"Y":0,"G":0}
for i in range(len(s)):
if s[i] in "RGBY": d[i%4]=s[i]
for i in range(len(s)):
if s[i]=="!": DD[d[i%4]]+=1
print(DD["R"],DD["B"],DD["Y"],DD["G"])
``` | output | 1 | 56,087 | 7 | 112,175 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Nothing is eternal in the world, Kostya understood it on the 7-th of January when he saw partially dead four-color garland.
Now he has a goal to replace dead light bulbs, however he doesn't know how many light bulbs for each color are requi... | instruction | 0 | 56,088 | 7 | 112,176 |
Tags: brute force, implementation, number theory
Correct Solution:
```
inp=str(input())
res=[0,0,0,0]
rbyg=[-1,-1,-1,-1]
for i in range(len(inp)):
try:
rbyg["RBYG".index(inp[i])]=i%4
except:
res[i%4]+=1
print(res[rbyg[0]], res[rbyg[1]], res[rbyg[2]], res[rbyg[3]], sep=' ')
``` | output | 1 | 56,088 | 7 | 112,177 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Nothing is eternal in the world, Kostya understood it on the 7-th of January when he saw partially dead four-color garland.
Now he has a goal to replace dead light bulbs, however he doesn't know how many light bulbs for each color are requi... | instruction | 0 | 56,089 | 7 | 112,178 |
Tags: brute force, implementation, number theory
Correct Solution:
```
import sys
import os
def changeStdioToFile():
path = os.path.dirname(os.path.abspath(__file__))
sys.stdin = open(f'{path}/input.txt', 'r')
sys.stdout = open(f'{path}/output.txt', 'w')
#changeStdioToFile()
t = 1
#t = int(input())
for _... | output | 1 | 56,089 | 7 | 112,179 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Nothing is eternal in the world, Kostya understood it on the 7-th of January when he saw partially dead four-color garland.
Now he has a goal to replace dead light bulbs, however he doesn't know how many light bulbs for each color are requi... | instruction | 0 | 56,090 | 7 | 112,180 |
Tags: brute force, implementation, number theory
Correct Solution:
```
arr = input()
pos = [0,1,2,3]
myd = {}
for c in pos:
cnt = 0
for l in range(c,len(arr), 4):
if(arr[l]!='!'):
k=arr[l]
else:
cnt = cnt + 1
myd[k] = cnt
print('%d %d %d %d' % (myd['R'], myd['B'], my... | output | 1 | 56,090 | 7 | 112,181 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Nothing is eternal in the world, Kostya understood it on the 7-th of January when he saw partially dead four-color garland.
Now he has a goal to replace dead light bulbs, however he doesn't know how many light bulbs for each color are requi... | instruction | 0 | 56,091 | 7 | 112,182 |
Tags: brute force, implementation, number theory
Correct Solution:
```
a=input()
b=a.index('B')%4
r=a.index('R')%4
g=a.index('G')%4
y=a.index('Y')%4
tb=0
tr=0
tg=0
ty=0
for i in range(len(a)):
if a[i]=='!':
z=i%4
if z==b:
tb+=1
if z==r:
tr+=1
if z==g:
... | output | 1 | 56,091 | 7 | 112,183 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Nothing is eternal in the world, Kostya understood it on the 7-th of January when he saw partially dead four-color garland.
Now he has a goal to replace dead light bulbs, however he doesn't know how many light bulbs for each color are requi... | instruction | 0 | 56,092 | 7 | 112,184 |
Tags: brute force, implementation, number theory
Correct Solution:
```
s=input()
n=len(s)
arr={'R':0,'B':0,'Y':0,'G':0}
for i in range(4):
j=i
count=0
while j<n:
if s[j]=='!':
count+=1
else:
chr=s[j]
j+=4
arr[chr]=count
for j in list(arr.values()):
p... | output | 1 | 56,092 | 7 | 112,185 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Nothing is eternal in the world, Kostya understood it on the 7-th of January when he saw partially dead four-color garland.
Now he has a goal to replace dead light bulbs, however he doesn't know how many light bulbs for each color are requi... | instruction | 0 | 56,093 | 7 | 112,186 |
Tags: brute force, implementation, number theory
Correct Solution:
```
s = list(input().strip())
dead = {'R':0,'B':0,'Y':0,'G':0}
for i in range(len(s)):
if s[i] == '!':
for j in range(i%4, len(s), 4):
if s[j] != '!':
s[i] = s[j]
dead[s[j]] += 1
break
print(*dead.values())
``` | output | 1 | 56,093 | 7 | 112,187 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Nothing is eternal in the world, Kostya understood it on the 7-th of January when he saw partially dead four-color garland.
Now he has a goal to replace dead light bulbs, however he doesn't know how many light bulbs for each color are requi... | instruction | 0 | 56,094 | 7 | 112,188 |
Tags: brute force, implementation, number theory
Correct Solution:
```
s=list(input())
d = {'R':-1,'Y':-1,'G':-1,'B':-1}
j=0
for i in s:
if(i!='!'):
d[i] = j%4
j+=1
_d = {}
for key in d:
_d[d[key]] = key
j=0
l = [0,0,0,0]
for i in range(len(s)):
if(s[i]=='!'):
try:
key = _d[j%4]
except:
key = _d[-1]
i... | output | 1 | 56,094 | 7 | 112,189 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Nothing is eternal in the world, Kostya understood it on the 7-th of January when he saw partially dead four-color garland.
Now he has a goal to replace dead light bulbs, however he doesn't kno... | instruction | 0 | 56,095 | 7 | 112,190 |
Yes | output | 1 | 56,095 | 7 | 112,191 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Nothing is eternal in the world, Kostya understood it on the 7-th of January when he saw partially dead four-color garland.
Now he has a goal to replace dead light bulbs, however he doesn't kno... | instruction | 0 | 56,096 | 7 | 112,192 |
Yes | output | 1 | 56,096 | 7 | 112,193 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Nothing is eternal in the world, Kostya understood it on the 7-th of January when he saw partially dead four-color garland.
Now he has a goal to replace dead light bulbs, however he doesn't kno... | instruction | 0 | 56,097 | 7 | 112,194 |
Yes | output | 1 | 56,097 | 7 | 112,195 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Nothing is eternal in the world, Kostya understood it on the 7-th of January when he saw partially dead four-color garland.
Now he has a goal to replace dead light bulbs, however he doesn't kno... | instruction | 0 | 56,098 | 7 | 112,196 |
Yes | output | 1 | 56,098 | 7 | 112,197 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Nothing is eternal in the world, Kostya understood it on the 7-th of January when he saw partially dead four-color garland.
Now he has a goal to replace dead light bulbs, however he doesn't kno... | instruction | 0 | 56,099 | 7 | 112,198 |
No | output | 1 | 56,099 | 7 | 112,199 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Nothing is eternal in the world, Kostya understood it on the 7-th of January when he saw partially dead four-color garland.
Now he has a goal to replace dead light bulbs, however he doesn't kno... | instruction | 0 | 56,100 | 7 | 112,200 |
No | output | 1 | 56,100 | 7 | 112,201 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Nothing is eternal in the world, Kostya understood it on the 7-th of January when he saw partially dead four-color garland.
Now he has a goal to replace dead light bulbs, however he doesn't kno... | instruction | 0 | 56,101 | 7 | 112,202 |
No | output | 1 | 56,101 | 7 | 112,203 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Nothing is eternal in the world, Kostya understood it on the 7-th of January when he saw partially dead four-color garland.
Now he has a goal to replace dead light bulbs, however he doesn't kno... | instruction | 0 | 56,102 | 7 | 112,204 |
No | output | 1 | 56,102 | 7 | 112,205 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A competitive eater, Alice is scheduling some practices for an eating contest on a magical calendar. The calendar is unusual because a week contains not necessarily 7 days!
In detail, she can choose any integer k which satisfies 1 ≤ k ≤ r, ... | instruction | 0 | 56,540 | 7 | 113,080 |
Tags: math
Correct Solution:
```
import math
from collections import deque
import sys
sys.setrecursionlimit(10**4)
def Divisors(n) :
l=[]
i = 2
while i <= math.sqrt(n):
if (n % i == 0) :
if (n // i == i) :
l.append(i)
else :
l.append(i)
l.append(n//i)
i = i + 1
return l
... | output | 1 | 56,540 | 7 | 113,081 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A competitive eater, Alice is scheduling some practices for an eating contest on a magical calendar. The calendar is unusual because a week contains not necessarily 7 days!
In detail, she can choose any integer k which satisfies 1 ≤ k ≤ r, ... | instruction | 0 | 56,541 | 7 | 113,082 |
Tags: math
Correct Solution:
```
import collections as cc
import math as mt
I=lambda:list(map(int,input().split()))
for tc in range(int(input())):
n,k=I()
d=0
if k>=n:
d=abs(n-k)
n-=1
print(n*(n+1)//2+1)
else:
print(k*(k+1)//2)
``` | output | 1 | 56,541 | 7 | 113,083 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A competitive eater, Alice is scheduling some practices for an eating contest on a magical calendar. The calendar is unusual because a week contains not necessarily 7 days!
In detail, she can choose any integer k which satisfies 1 ≤ k ≤ r, ... | instruction | 0 | 56,542 | 7 | 113,084 |
Tags: math
Correct Solution:
```
for i in range(int(input())):
n,r = map(int, input().split())
ct = 0
if r >= n:
ct = ((n-1)*(n)//2) +1
print(int(ct))
elif r < n:
ct = ((r)*(r+1)//2)
print(int(ct))
``` | output | 1 | 56,542 | 7 | 113,085 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A competitive eater, Alice is scheduling some practices for an eating contest on a magical calendar. The calendar is unusual because a week contains not necessarily 7 days!
In detail, she can choose any integer k which satisfies 1 ≤ k ≤ r, ... | instruction | 0 | 56,543 | 7 | 113,086 |
Tags: math
Correct Solution:
```
t = int(input())
while t!=0:
t-=1
n ,r= map(int, input().split())
if n > r:
print((r*(r+1))//2)
else:
print((n*(n-1))//2 + 1)
``` | output | 1 | 56,543 | 7 | 113,087 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A competitive eater, Alice is scheduling some practices for an eating contest on a magical calendar. The calendar is unusual because a week contains not necessarily 7 days!
In detail, she can choose any integer k which satisfies 1 ≤ k ≤ r, ... | instruction | 0 | 56,544 | 7 | 113,088 |
Tags: math
Correct Solution:
```
t=int(input())
for i in range(t):
n,r=map(int,input().split())
v=min(r,n-1)
s=(v*(v+1))//2
if r>=n:
s+=1
print(s)
``` | output | 1 | 56,544 | 7 | 113,089 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A competitive eater, Alice is scheduling some practices for an eating contest on a magical calendar. The calendar is unusual because a week contains not necessarily 7 days!
In detail, she can choose any integer k which satisfies 1 ≤ k ≤ r, ... | instruction | 0 | 56,545 | 7 | 113,090 |
Tags: math
Correct Solution:
```
for _ in range(int(input())):
n, r = map(int, input().split())
if n > r:
print((1+r)*r//2)
else:
ans = (1+n-1)*(n-1)//2 + 1
print(ans)
``` | output | 1 | 56,545 | 7 | 113,091 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A competitive eater, Alice is scheduling some practices for an eating contest on a magical calendar. The calendar is unusual because a week contains not necessarily 7 days!
In detail, she can choose any integer k which satisfies 1 ≤ k ≤ r, ... | instruction | 0 | 56,546 | 7 | 113,092 |
Tags: math
Correct Solution:
```
# cook your dish here
from math import *
t=int(input())
while t:
t=t-1
n,r=map(int,input().split())
out=0
if r<n:
out+=(r*(r+1))//2
else:
n=n-1
out+=(n*(n+1))//2
out+=1
print(out)
``` | output | 1 | 56,546 | 7 | 113,093 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A competitive eater, Alice is scheduling some practices for an eating contest on a magical calendar. The calendar is unusual because a week contains not necessarily 7 days!
In detail, she can choose any integer k which satisfies 1 ≤ k ≤ r, ... | instruction | 0 | 56,547 | 7 | 113,094 |
Tags: math
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.write ... | output | 1 | 56,547 | 7 | 113,095 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A competitive eater, Alice is scheduling some practices for an eating contest on a magical calendar. The calendar is unusual because a week contains not necessarily 7 days!
In detail, she can c... | instruction | 0 | 56,548 | 7 | 113,096 |
Yes | output | 1 | 56,548 | 7 | 113,097 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A competitive eater, Alice is scheduling some practices for an eating contest on a magical calendar. The calendar is unusual because a week contains not necessarily 7 days!
In detail, she can c... | instruction | 0 | 56,549 | 7 | 113,098 |
Yes | output | 1 | 56,549 | 7 | 113,099 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A competitive eater, Alice is scheduling some practices for an eating contest on a magical calendar. The calendar is unusual because a week contains not necessarily 7 days!
In detail, she can c... | instruction | 0 | 56,550 | 7 | 113,100 |
Yes | output | 1 | 56,550 | 7 | 113,101 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A competitive eater, Alice is scheduling some practices for an eating contest on a magical calendar. The calendar is unusual because a week contains not necessarily 7 days!
In detail, she can c... | instruction | 0 | 56,551 | 7 | 113,102 |
Yes | output | 1 | 56,551 | 7 | 113,103 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A competitive eater, Alice is scheduling some practices for an eating contest on a magical calendar. The calendar is unusual because a week contains not necessarily 7 days!
In detail, she can c... | instruction | 0 | 56,552 | 7 | 113,104 |
No | output | 1 | 56,552 | 7 | 113,105 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A competitive eater, Alice is scheduling some practices for an eating contest on a magical calendar. The calendar is unusual because a week contains not necessarily 7 days!
In detail, she can c... | instruction | 0 | 56,553 | 7 | 113,106 |
No | output | 1 | 56,553 | 7 | 113,107 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A competitive eater, Alice is scheduling some practices for an eating contest on a magical calendar. The calendar is unusual because a week contains not necessarily 7 days!
In detail, she can c... | instruction | 0 | 56,554 | 7 | 113,108 |
No | output | 1 | 56,554 | 7 | 113,109 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
A competitive eater, Alice is scheduling some practices for an eating contest on a magical calendar. The calendar is unusual because a week contains not necessarily 7 days!
In detail, she can c... | instruction | 0 | 56,555 | 7 | 113,110 |
No | output | 1 | 56,555 | 7 | 113,111 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's call some square matrix with integer values in its cells palindromic if it doesn't change after the order of rows is reversed and it doesn't change after the order of columns is reversed.
For example, the following matrices are palind... | instruction | 0 | 58,056 | 7 | 116,112 |
Tags: constructive algorithms, implementation
Correct Solution:
```
n=int(input())
a=list(map(int,input().split()))
from collections import defaultdict as dc
d=dc(int)
for i in a:
d[i]+=1
ch=0
for i in d:
if d[i]%2!=0:ch+=1
if ch>1:print('NO');exit()
l=len(d)
ch=0
a1=(n//2)**2
if n%2==0:
... | output | 1 | 58,056 | 7 | 116,113 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's call some square matrix with integer values in its cells palindromic if it doesn't change after the order of rows is reversed and it doesn't change after the order of columns is reversed.
For example, the following matrices are palind... | instruction | 0 | 58,057 | 7 | 116,114 |
Tags: constructive algorithms, implementation
Correct Solution:
```
def print_mat(m):
n = len(m)
for i in range(n):
print(' '.join([str(j) for j in m[i]]))
def mat_unity4(b):
global n
b1, b2, b3, b4 = b, tr_mat(b, 2), tr_mat(b, 3), tr_mat(b, 4)
r = [['' for i in range(n)] for j in range(n)]... | output | 1 | 58,057 | 7 | 116,115 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's call some square matrix with integer values in its cells palindromic if it doesn't change after the order of rows is reversed and it doesn't change after the order of columns is reversed.
For example, the following matrices are palind... | instruction | 0 | 58,058 | 7 | 116,116 |
Tags: constructive algorithms, implementation
Correct Solution:
```
def fastio():
import sys
from io import StringIO
from atexit import register
global input
sys.stdin = StringIO(sys.stdin.read())
input = lambda : sys.stdin.readline().rstrip('\r\n')
sys.stdout = StringIO()
register(lambda : sys.__stdout__.writ... | output | 1 | 58,058 | 7 | 116,117 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's call some square matrix with integer values in its cells palindromic if it doesn't change after the order of rows is reversed and it doesn't change after the order of columns is reversed.
For example, the following matrices are palind... | instruction | 0 | 58,059 | 7 | 116,118 |
Tags: constructive algorithms, implementation
Correct Solution:
```
from collections import defaultdict, deque
import sys
def input():
return sys.stdin.readline().rstrip()
def getcnt(LIST):
d = defaultdict(int)
for v in LIST:
d[v] += 1
return d
def odd_only_1(dic):
cnt = 0
res_valu... | output | 1 | 58,059 | 7 | 116,119 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's call some square matrix with integer values in its cells palindromic if it doesn't change after the order of rows is reversed and it doesn't change after the order of columns is reversed.
For example, the following matrices are palind... | instruction | 0 | 58,060 | 7 | 116,120 |
Tags: constructive algorithms, implementation
Correct Solution:
```
n=int(input())
l=list(map(int,input().split()))
d=dict()
for j in range(n*n):
if l[j] not in d:
d.update({l[j]:1})
else:
d[l[j]]+=1
four=0
t=0
f=0
#print(d)
for j in d:
if d[j]%2==1:
if n%2==1 and t==0:
... | output | 1 | 58,060 | 7 | 116,121 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's call some square matrix with integer values in its cells palindromic if it doesn't change after the order of rows is reversed and it doesn't change after the order of columns is reversed.
For example, the following matrices are palind... | instruction | 0 | 58,061 | 7 | 116,122 |
Tags: constructive algorithms, implementation
Correct Solution:
```
from collections import defaultdict, Counter
from itertools import product, groupby, count, permutations, combinations
from math import pi, sqrt, sin, cos, ceil, floor
from collections import deque
from bisect import bisect, bisect_left, bisect_right
f... | output | 1 | 58,061 | 7 | 116,123 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's call some square matrix with integer values in its cells palindromic if it doesn't change after the order of rows is reversed and it doesn't change after the order of columns is reversed.
For example, the following matrices are palind... | instruction | 0 | 58,062 | 7 | 116,124 |
Tags: constructive algorithms, implementation
Correct Solution:
```
from collections import Counter
n = int(input().strip())
entries = list(map(int, input().strip().split()))
# n = 5
# entries = []
# entries += [1]
# entries += [2]*2
# entries += [3]*2
# entries += [4]*2
# entries += [5]*2
# entries += [6]*(4*4)
if... | output | 1 | 58,062 | 7 | 116,125 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Let's call some square matrix with integer values in its cells palindromic if it doesn't change after the order of rows is reversed and it doesn't change after the order of columns is reversed.
For example, the following matrices are palind... | instruction | 0 | 58,063 | 7 | 116,126 |
Tags: constructive algorithms, implementation
Correct Solution:
```
from collections import Counter
n = int(input())
s = list(map(int, input().split()))
c = Counter(s)
m = {}
two_pos = []
four_pos = []
one_pos = []
if n % 2 == 1:
one_pos.append((n // 2, n // 2))
for i in range(n // 2):
two_pos.append... | output | 1 | 58,063 | 7 | 116,127 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Let's call some square matrix with integer values in its cells palindromic if it doesn't change after the order of rows is reversed and it doesn't change after the order of columns is reversed.
... | instruction | 0 | 58,067 | 7 | 116,134 |
Yes | output | 1 | 58,067 | 7 | 116,135 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Let's call some square matrix with integer values in its cells palindromic if it doesn't change after the order of rows is reversed and it doesn't change after the order of columns is reversed.
... | instruction | 0 | 58,068 | 7 | 116,136 |
No | output | 1 | 58,068 | 7 | 116,137 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vadim loves decorating the Christmas tree, so he got a beautiful garland as a present. It consists of n light bulbs in a single row. Each bulb has a number from 1 to n (in arbitrary order), such that all the numbers are distinct. While Vadim... | instruction | 0 | 58,146 | 7 | 116,292 |
Tags: dp, greedy, sortings
Correct Solution:
```
n = int(input())
girl = list(map(int, input().split()))
odd = 0
even = 0
for g in girl:
if g != 0:
if g % 2 != 0:
odd += 1
else:
even += 1
left_odd = (n + 1) // 2 - odd
left_even = n // 2 - even
series = []
left = 0
right = n ... | output | 1 | 58,146 | 7 | 116,293 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vadim loves decorating the Christmas tree, so he got a beautiful garland as a present. It consists of n light bulbs in a single row. Each bulb has a number from 1 to n (in arbitrary order), such that all the numbers are distinct. While Vadim... | instruction | 0 | 58,147 | 7 | 116,294 |
Tags: dp, greedy, sortings
Correct Solution:
```
def arr_inp():
return [int(x) for x in stdin.readline().split()]
def dp(i, odd, even, pre):
if i >= n:
return 0
ret = mem[i, odd, even, pre]
if ret != -1:
return ret
ret = float('inf')
if a[i] > 0:
if pre == 0:
... | output | 1 | 58,147 | 7 | 116,295 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vadim loves decorating the Christmas tree, so he got a beautiful garland as a present. It consists of n light bulbs in a single row. Each bulb has a number from 1 to n (in arbitrary order), such that all the numbers are distinct. While Vadim... | instruction | 0 | 58,148 | 7 | 116,296 |
Tags: dp, greedy, sortings
Correct Solution:
```
def calculate(ar, num):
s = 0
for x in range(len(ar)):
if(num >= ar[x][0]):
num -= ar[x][0]
else:
s += (1 if ar[x][1] else 2)
return s
def calculate1(ar, num):
s = calculate(ar, num)
ar1 = []
for x in range(len(ar)):
if(ar[x][1]):
ar1.append(x)
if(... | output | 1 | 58,148 | 7 | 116,297 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vadim loves decorating the Christmas tree, so he got a beautiful garland as a present. It consists of n light bulbs in a single row. Each bulb has a number from 1 to n (in arbitrary order), such that all the numbers are distinct. While Vadim... | instruction | 0 | 58,149 | 7 | 116,298 |
Tags: dp, greedy, sortings
Correct Solution:
```
n=int(input())
z=float("INF")
a=[int(x) for x in input().split()]
dp=[[[[z]*2 for k in range(n+1)] for j in range(n+1)]for i in range(n+1)]
dp[0][0][0][0]=0
dp[0][0][0][1]=0
for i in range(1,n+1):
for j in range(n+1):
for k in range(n+1):
if a[i-1]&1:
dp[i][j][... | output | 1 | 58,149 | 7 | 116,299 |
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