message stringlengths 2 48.6k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 318 108k | cluster float64 8 8 | __index_level_0__ int64 636 217k |
|---|---|---|---|---|---|
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Our master carpenter is designing a condominium called Bange Hills Mansion. The condominium is constructed by stacking up floors of the same height. The height of each floor is designed so that ... | instruction | 0 | 14,967 | 8 | 29,934 |
Yes | output | 1 | 14,967 | 8 | 29,935 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Our master carpenter is designing a condominium called Bange Hills Mansion. The condominium is constructed by stacking up floors of the same height. The height of each floor is designed so that ... | instruction | 0 | 14,968 | 8 | 29,936 |
No | output | 1 | 14,968 | 8 | 29,937 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Our master carpenter is designing a condominium called Bange Hills Mansion. The condominium is constructed by stacking up floors of the same height. The height of each floor is designed so that ... | instruction | 0 | 14,969 | 8 | 29,938 |
No | output | 1 | 14,969 | 8 | 29,939 |
Provide a correct Python 3 solution for this coding contest problem.
problem
There are $ N $ islands numbered from $ 1 $ to $ N $.
Each island has $ N-1 $ bridges, allowing any $ 2 $ island to move to each other across several bridges.
Each bridge has durability, and the durability of the $ i $ th bridge given the in... | instruction | 0 | 15,028 | 8 | 30,056 |
"Correct Solution:
```
#!usr/bin/env python3
from collections import defaultdict,deque
from heapq import heappush, heappop
import sys
import math
import bisect
import random
def LI(): return [int(x) for x in sys.stdin.readline().split()]
def I(): return int(sys.stdin.readline())
def LS():return [list(x) for x in sys.st... | output | 1 | 15,028 | 8 | 30,057 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vasya has got n books, numbered from 1 to n, arranged in a stack. The topmost book has number a_1, the next one — a_2, and so on. The book at the bottom of the stack has number a_n. All numbers are distinct.
Vasya wants to move all the book... | instruction | 0 | 15,106 | 8 | 30,212 |
Tags: implementation, math
Correct Solution:
```
def inint():
return int(input())
def inlist():
return list(map(int,input().split()))
def main():
n=inint()
a=inlist()
b=inlist()
i=0;j=0
ans={}
for k in range(n):
ans[a[k]]=k
sol=[]
#print(ans)
for k in b:
j=an... | output | 1 | 15,106 | 8 | 30,213 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vasya has got n books, numbered from 1 to n, arranged in a stack. The topmost book has number a_1, the next one — a_2, and so on. The book at the bottom of the stack has number a_n. All numbers are distinct.
Vasya wants to move all the book... | instruction | 0 | 15,107 | 8 | 30,214 |
Tags: implementation, math
Correct Solution:
```
from collections import deque
n = int(input())
stack = deque([int(p) for p in input().split()])
b = [int(p) for p in input().split()]
st = set(stack)
for i in range(len(b)):
count = 0
if b[i] not in st:
print(0)
continue
if stack:
while True:
bk = stack.pople... | output | 1 | 15,107 | 8 | 30,215 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vasya has got n books, numbered from 1 to n, arranged in a stack. The topmost book has number a_1, the next one — a_2, and so on. The book at the bottom of the stack has number a_n. All numbers are distinct.
Vasya wants to move all the book... | instruction | 0 | 15,108 | 8 | 30,216 |
Tags: implementation, math
Correct Solution:
```
if __name__ == "__main__":
n = int(input())
a = list(map(int, input().split()))
b = list(map(int, input().split()))
L = [0]*(n+1)
for i in range(n):
L[a[i]] = i+1
ind = 0
for i in range(n):
if L[b[i]] > ind:
print(L[b[i]]-ind,end=' ')
... | output | 1 | 15,108 | 8 | 30,217 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vasya has got n books, numbered from 1 to n, arranged in a stack. The topmost book has number a_1, the next one — a_2, and so on. The book at the bottom of the stack has number a_n. All numbers are distinct.
Vasya wants to move all the book... | instruction | 0 | 15,109 | 8 | 30,218 |
Tags: implementation, math
Correct Solution:
```
n=int(input())
arr=list(map(int,input().strip().split(' ')))
arr1=list(map(int,input().strip().split(' ')))
mp={}
for i in range(n):
mp[arr[i]]=i
mx=-1
for i in range(n):
if(mx>=mp[arr1[i]]):
print(0,end=' ')
else:
print(mp[arr1[i]]-mx,end=' '... | output | 1 | 15,109 | 8 | 30,219 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vasya has got n books, numbered from 1 to n, arranged in a stack. The topmost book has number a_1, the next one — a_2, and so on. The book at the bottom of the stack has number a_n. All numbers are distinct.
Vasya wants to move all the book... | instruction | 0 | 15,110 | 8 | 30,220 |
Tags: implementation, math
Correct Solution:
```
I=lambda:map(int,input().split())
I()
a=*I(),
b=I()
s={0}
i=0
r=[]
for x in b:
if x in s:
r+=[0]
continue
c=i
while a[i]!=x:s|={a[i]};i+=1
s|={a[i]}
i+=1
r+=[i-c]
print(*r)
``` | output | 1 | 15,110 | 8 | 30,221 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vasya has got n books, numbered from 1 to n, arranged in a stack. The topmost book has number a_1, the next one — a_2, and so on. The book at the bottom of the stack has number a_n. All numbers are distinct.
Vasya wants to move all the book... | instruction | 0 | 15,111 | 8 | 30,222 |
Tags: implementation, math
Correct Solution:
```
def read():
return int(input())
def readlist():
return list(map(int, input().split()))
def readmap():
return map(int, input().split())
n = read()
A = readlist()
B = readlist()
S = set()
j = 0
ans = []
for i in range(n):
if B[i] in S:
ans.ap... | output | 1 | 15,111 | 8 | 30,223 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vasya has got n books, numbered from 1 to n, arranged in a stack. The topmost book has number a_1, the next one — a_2, and so on. The book at the bottom of the stack has number a_n. All numbers are distinct.
Vasya wants to move all the book... | instruction | 0 | 15,112 | 8 | 30,224 |
Tags: implementation, math
Correct Solution:
```
n = input()
a = input().split()
b = input().split()
d = {el: i for i, el in enumerate(a)}
diff_b = []
prev_number = 0
for i, el in enumerate(b):
f = d[el]
if prev_number < i:
t = max(f - i + 1, 0)
else:
t = max(f - prev_number + 1, 0)
prev... | output | 1 | 15,112 | 8 | 30,225 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vasya has got n books, numbered from 1 to n, arranged in a stack. The topmost book has number a_1, the next one — a_2, and so on. The book at the bottom of the stack has number a_n. All numbers are distinct.
Vasya wants to move all the book... | instruction | 0 | 15,113 | 8 | 30,226 |
Tags: implementation, math
Correct Solution:
```
n = int(input())
a_trans = [n + 1] * (n + 1)
i = 1
for ai in input().split():
a_trans[int(ai)] = i
i += 1
min_unt_ake_n = 1
res = []
for bi in input().split():
atb_i = a_trans[int(bi)]
if atb_i < min_unt_ake_n:
res.append('0')
else:
nex = atb_i + 1
res.append(... | output | 1 | 15,113 | 8 | 30,227 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya has got n books, numbered from 1 to n, arranged in a stack. The topmost book has number a_1, the next one — a_2, and so on. The book at the bottom of the stack has number a_n. All numbers ... | instruction | 0 | 15,114 | 8 | 30,228 |
Yes | output | 1 | 15,114 | 8 | 30,229 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya has got n books, numbered from 1 to n, arranged in a stack. The topmost book has number a_1, the next one — a_2, and so on. The book at the bottom of the stack has number a_n. All numbers ... | instruction | 0 | 15,115 | 8 | 30,230 |
Yes | output | 1 | 15,115 | 8 | 30,231 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya has got n books, numbered from 1 to n, arranged in a stack. The topmost book has number a_1, the next one — a_2, and so on. The book at the bottom of the stack has number a_n. All numbers ... | instruction | 0 | 15,116 | 8 | 30,232 |
Yes | output | 1 | 15,116 | 8 | 30,233 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya has got n books, numbered from 1 to n, arranged in a stack. The topmost book has number a_1, the next one — a_2, and so on. The book at the bottom of the stack has number a_n. All numbers ... | instruction | 0 | 15,117 | 8 | 30,234 |
Yes | output | 1 | 15,117 | 8 | 30,235 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya has got n books, numbered from 1 to n, arranged in a stack. The topmost book has number a_1, the next one — a_2, and so on. The book at the bottom of the stack has number a_n. All numbers ... | instruction | 0 | 15,118 | 8 | 30,236 |
No | output | 1 | 15,118 | 8 | 30,237 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya has got n books, numbered from 1 to n, arranged in a stack. The topmost book has number a_1, the next one — a_2, and so on. The book at the bottom of the stack has number a_n. All numbers ... | instruction | 0 | 15,119 | 8 | 30,238 |
No | output | 1 | 15,119 | 8 | 30,239 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya has got n books, numbered from 1 to n, arranged in a stack. The topmost book has number a_1, the next one — a_2, and so on. The book at the bottom of the stack has number a_n. All numbers ... | instruction | 0 | 15,120 | 8 | 30,240 |
No | output | 1 | 15,120 | 8 | 30,241 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya has got n books, numbered from 1 to n, arranged in a stack. The topmost book has number a_1, the next one — a_2, and so on. The book at the bottom of the stack has number a_n. All numbers ... | instruction | 0 | 15,121 | 8 | 30,242 |
No | output | 1 | 15,121 | 8 | 30,243 |
Provide tags and a correct Python 3 solution for this coding contest problem.
As meticulous Gerald sets the table and caring Alexander sends the postcards, Sergey makes snowmen. Each showman should consist of three snowballs: a big one, a medium one and a small one. Sergey's twins help him: they've already made n snow... | instruction | 0 | 15,257 | 8 | 30,514 |
Tags: binary search, data structures, greedy
Correct Solution:
```
import heapq
n=int(input())
a={}
for r in map(int,input().split()):
a[r]=a.get(r,0)-1
b=[]
for r in a:
b.append((a[r],r))
heapq.heapify(b)
ans,k=[],0
while len(b)>2:
k+=1
c=[heapq.heappop(b),heapq.heappop(b),heapq.heappop(b)]
ans... | output | 1 | 15,257 | 8 | 30,515 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As meticulous Gerald sets the table and caring Alexander sends the postcards, Sergey makes snowmen. Each showman should consist of three snowballs: a big one, a medium one and a small one. Serge... | instruction | 0 | 15,260 | 8 | 30,520 |
Yes | output | 1 | 15,260 | 8 | 30,521 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As meticulous Gerald sets the table and caring Alexander sends the postcards, Sergey makes snowmen. Each showman should consist of three snowballs: a big one, a medium one and a small one. Serge... | instruction | 0 | 15,261 | 8 | 30,522 |
Yes | output | 1 | 15,261 | 8 | 30,523 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As meticulous Gerald sets the table and caring Alexander sends the postcards, Sergey makes snowmen. Each showman should consist of three snowballs: a big one, a medium one and a small one. Serge... | instruction | 0 | 15,262 | 8 | 30,524 |
Yes | output | 1 | 15,262 | 8 | 30,525 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As meticulous Gerald sets the table and caring Alexander sends the postcards, Sergey makes snowmen. Each showman should consist of three snowballs: a big one, a medium one and a small one. Serge... | instruction | 0 | 15,263 | 8 | 30,526 |
Yes | output | 1 | 15,263 | 8 | 30,527 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As meticulous Gerald sets the table and caring Alexander sends the postcards, Sergey makes snowmen. Each showman should consist of three snowballs: a big one, a medium one and a small one. Serge... | instruction | 0 | 15,264 | 8 | 30,528 |
No | output | 1 | 15,264 | 8 | 30,529 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As meticulous Gerald sets the table and caring Alexander sends the postcards, Sergey makes snowmen. Each showman should consist of three snowballs: a big one, a medium one and a small one. Serge... | instruction | 0 | 15,265 | 8 | 30,530 |
No | output | 1 | 15,265 | 8 | 30,531 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As meticulous Gerald sets the table and caring Alexander sends the postcards, Sergey makes snowmen. Each showman should consist of three snowballs: a big one, a medium one and a small one. Serge... | instruction | 0 | 15,266 | 8 | 30,532 |
No | output | 1 | 15,266 | 8 | 30,533 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
As meticulous Gerald sets the table and caring Alexander sends the postcards, Sergey makes snowmen. Each showman should consist of three snowballs: a big one, a medium one and a small one. Serge... | instruction | 0 | 15,267 | 8 | 30,534 |
No | output | 1 | 15,267 | 8 | 30,535 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Nikolay lives in a two-storied house. There are n rooms on each floor, arranged in a row and numbered from one from left to right. So each room can be represented by the number of the floor and the number of the room on this floor (room numb... | instruction | 0 | 16,046 | 8 | 32,092 |
Tags: brute force, implementation
Correct Solution:
```
import sys
from collections import defaultdict
t=int(sys.stdin.readline())
for _ in range(t):
n=int(sys.stdin.readline())
s=sys.stdin.readline()[:-1]
#vis=defaultdict(int)
ans=1
for i in range(n):
if s[i]=='1':
ans=max(... | output | 1 | 16,046 | 8 | 32,093 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Nikolay lives in a two-storied house. There are n rooms on each floor, arranged in a row and numbered from one from left to right. So each room can be represented by the number of the floor and the number of the room on this floor (room numb... | instruction | 0 | 16,047 | 8 | 32,094 |
Tags: brute force, implementation
Correct Solution:
```
t = int(input())
for i in range(t):
n = int(input())
a = list(input())
ans = 0
b = []
last = -1
if '1' not in a:
print(n)
continue
for i in range(n):
if a[i] == '1':
b.append(i)
kek = 0
for i ... | output | 1 | 16,047 | 8 | 32,095 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Nikolay lives in a two-storied house. There are n rooms on each floor, arranged in a row and numbered from one from left to right. So each room can be represented by the number of the floor and the number of the room on this floor (room numb... | instruction | 0 | 16,048 | 8 | 32,096 |
Tags: brute force, implementation
Correct Solution:
```
for _ in range(int(input())):
n=int(input())
s=input()
f=0
if s[0]=='1' or s[n-1]=='1':
print(2*n)
f=1
else:
for i in range(0,n):
if s[i]=='1':
m=max(i+1,n-i)
print(2*m)
... | output | 1 | 16,048 | 8 | 32,097 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Nikolay lives in a two-storied house. There are n rooms on each floor, arranged in a row and numbered from one from left to right. So each room can be represented by the number of the floor and the number of the room on this floor (room numb... | instruction | 0 | 16,049 | 8 | 32,098 |
Tags: brute force, implementation
Correct Solution:
```
import math
for i in range(int(input())):
n=int(input())
s=str(input())
if s[-1]=='1' or s[0]=='1':
print(2*len(s))
elif s.count('1')>0:
a=s.index('1')
b=n - 1 - s[::-1].index('1')
print(max((n-a)*2,(b+1)*2))
else:
print(n)
``` | output | 1 | 16,049 | 8 | 32,099 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Nikolay lives in a two-storied house. There are n rooms on each floor, arranged in a row and numbered from one from left to right. So each room can be represented by the number of the floor and the number of the room on this floor (room numb... | instruction | 0 | 16,050 | 8 | 32,100 |
Tags: brute force, implementation
Correct Solution:
```
def maximum_rooms (n,s):
if s[0] == "1" or s[-1] == "1":
return n*2
elif "1" not in s:
return n
else:
stair_left = 0
stair_right = 0
rooms = 0
for x in range(n-1,-1,-1):
if s[x] == "1":
... | output | 1 | 16,050 | 8 | 32,101 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Nikolay lives in a two-storied house. There are n rooms on each floor, arranged in a row and numbered from one from left to right. So each room can be represented by the number of the floor and the number of the room on this floor (room numb... | instruction | 0 | 16,051 | 8 | 32,102 |
Tags: brute force, implementation
Correct Solution:
```
# cook your dish here
import math
t = int(input())
while t>0:
n = int(input())
inp = list(map(int, list(input())))
if inp[0] == 1 or inp[n-1] == 1:
print(n*2)
else:
counter = 0
for i in inp:
if i == 0... | output | 1 | 16,051 | 8 | 32,103 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Nikolay lives in a two-storied house. There are n rooms on each floor, arranged in a row and numbered from one from left to right. So each room can be represented by the number of the floor and the number of the room on this floor (room numb... | instruction | 0 | 16,052 | 8 | 32,104 |
Tags: brute force, implementation
Correct Solution:
```
q=int(input())
for _ in range(q):
n=int(input())
string=input()
if string.count('1')==0:
print(n)
else:
temp=string[::-1]
ind1=string.find('1')
ind2=temp.find('1')
ans=max(n-ind1,n-ind2)
print(2*ans)
``` | output | 1 | 16,052 | 8 | 32,105 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Nikolay lives in a two-storied house. There are n rooms on each floor, arranged in a row and numbered from one from left to right. So each room can be represented by the number of the floor and the number of the room on this floor (room numb... | instruction | 0 | 16,053 | 8 | 32,106 |
Tags: brute force, implementation
Correct Solution:
```
t=int(input())
while t:
n=int(input())
a=input()
if(a.count('1')==0):print(n)
else:
for i in range(n):
if(a[i]=='1'):
break
for j in range(n):
if(a[n-1-j]=='1'):
break
... | output | 1 | 16,053 | 8 | 32,107 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Nikolay lives in a two-storied house. There are n rooms on each floor, arranged in a row and numbered from one from left to right. So each room can be represented by the number of the floor and ... | instruction | 0 | 16,054 | 8 | 32,108 |
Yes | output | 1 | 16,054 | 8 | 32,109 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Nikolay lives in a two-storied house. There are n rooms on each floor, arranged in a row and numbered from one from left to right. So each room can be represented by the number of the floor and ... | instruction | 0 | 16,055 | 8 | 32,110 |
Yes | output | 1 | 16,055 | 8 | 32,111 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Nikolay lives in a two-storied house. There are n rooms on each floor, arranged in a row and numbered from one from left to right. So each room can be represented by the number of the floor and ... | instruction | 0 | 16,056 | 8 | 32,112 |
Yes | output | 1 | 16,056 | 8 | 32,113 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Nikolay lives in a two-storied house. There are n rooms on each floor, arranged in a row and numbered from one from left to right. So each room can be represented by the number of the floor and ... | instruction | 0 | 16,057 | 8 | 32,114 |
Yes | output | 1 | 16,057 | 8 | 32,115 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Nikolay lives in a two-storied house. There are n rooms on each floor, arranged in a row and numbered from one from left to right. So each room can be represented by the number of the floor and ... | instruction | 0 | 16,058 | 8 | 32,116 |
No | output | 1 | 16,058 | 8 | 32,117 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Nikolay lives in a two-storied house. There are n rooms on each floor, arranged in a row and numbered from one from left to right. So each room can be represented by the number of the floor and ... | instruction | 0 | 16,059 | 8 | 32,118 |
No | output | 1 | 16,059 | 8 | 32,119 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Nikolay lives in a two-storied house. There are n rooms on each floor, arranged in a row and numbered from one from left to right. So each room can be represented by the number of the floor and ... | instruction | 0 | 16,060 | 8 | 32,120 |
No | output | 1 | 16,060 | 8 | 32,121 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Nikolay lives in a two-storied house. There are n rooms on each floor, arranged in a row and numbered from one from left to right. So each room can be represented by the number of the floor and ... | instruction | 0 | 16,061 | 8 | 32,122 |
No | output | 1 | 16,061 | 8 | 32,123 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A very brave explorer Petya once decided to explore Paris catacombs. Since Petya is not really experienced, his exploration is just walking through the catacombs.
Catacombs consist of several rooms and bidirectional passages between some pa... | instruction | 0 | 16,515 | 8 | 33,030 |
Tags: dsu, greedy, implementation, trees
Correct Solution:
```
y=int (input())
x=list(map(int,input().split()))
print(len(x)+1-len(set(x)))
``` | output | 1 | 16,515 | 8 | 33,031 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A very brave explorer Petya once decided to explore Paris catacombs. Since Petya is not really experienced, his exploration is just walking through the catacombs.
Catacombs consist of several rooms and bidirectional passages between some pa... | instruction | 0 | 16,516 | 8 | 33,032 |
Tags: dsu, greedy, implementation, trees
Correct Solution:
```
import fractions
import math
n=int(input())
#a,b=map(int,input().split(' '))
#n=list(map(int,input().split(' ')))
t=list(map(int,input().split(' ')))
a=set(t)
print(n+1-len(a))
``` | output | 1 | 16,516 | 8 | 33,033 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A very brave explorer Petya once decided to explore Paris catacombs. Since Petya is not really experienced, his exploration is just walking through the catacombs.
Catacombs consist of several rooms and bidirectional passages between some pa... | instruction | 0 | 16,517 | 8 | 33,034 |
Tags: dsu, greedy, implementation, trees
Correct Solution:
```
n=int(input())
a=list(map(int,input().split()))
z=[-1]*n
s=0
for i in range (n):
if z[n-1-i]!=(1):
if a[n-1-i]!=0:
z[a[n-1-i]-1]=1
s+=1
else:
s+=1
else:
if a[n-1-i]!=0:
z[a[n-1-... | output | 1 | 16,517 | 8 | 33,035 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A very brave explorer Petya once decided to explore Paris catacombs. Since Petya is not really experienced, his exploration is just walking through the catacombs.
Catacombs consist of several rooms and bidirectional passages between some pa... | instruction | 0 | 16,518 | 8 | 33,036 |
Tags: dsu, greedy, implementation, trees
Correct Solution:
```
n = int(input())
tl = [0] + list(map(int,input().split())) #2e5
ll = list(range(n+1)) #0-n
cnt = 1
for m,t in enumerate(tl):
if ll[t] > t:
ll[m] = m
cnt += 1
else:
ll[t] = m
print(cnt)
``` | output | 1 | 16,518 | 8 | 33,037 |
Provide tags and a correct Python 3 solution for this coding contest problem.
A very brave explorer Petya once decided to explore Paris catacombs. Since Petya is not really experienced, his exploration is just walking through the catacombs.
Catacombs consist of several rooms and bidirectional passages between some pa... | instruction | 0 | 16,519 | 8 | 33,038 |
Tags: dsu, greedy, implementation, trees
Correct Solution:
```
import sys
input()
k=list(map(int,input().split()))
l=[]
s=[0 for i in range(200001)]
t=1
for i in k:
if s[i]==1:
s[i]=0
s[t]=1
t+=1
print(sum(s))
``` | output | 1 | 16,519 | 8 | 33,039 |
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