message stringlengths 2 22.8k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 16 109k | cluster float64 1 1 | __index_level_0__ int64 32 217k |
|---|---|---|---|---|---|
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n cities numbered from 1 to n, and city i has beauty a_i.
A salesman wants to start at city 1, visit every city exactly once, and return to city 1.
For all i≠ j, a flight from city i to city j costs max(c_i,a_j-a_i) dollars, wher... | instruction | 0 | 78,504 | 1 | 157,008 |
Tags: binary search, data structures, dp, greedy, shortest paths, sortings, two pointers
Correct Solution:
```
import sys
from sys import stdin
n = int(stdin.readline())
ans = 0
ac = []
LAC = []
RAC = []
for i in range(n):
a,c = map(int,stdin.readline().split())
ans += c
ac.append((a,c))
LAC.ap... | output | 1 | 78,504 | 1 | 157,009 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n cities numbered from 1 to n, and city i has beauty a_i.
A salesman wants to start at city 1, visit every city exactly once, and return to city 1.
For all i≠ j, a flight from city i to city j costs max(c_i,a_j-a_i) dollars, wher... | instruction | 0 | 78,505 | 1 | 157,010 |
Tags: binary search, data structures, dp, greedy, shortest paths, sortings, two pointers
Correct Solution:
```
n = int(input())
cities = []
ans = 0
for i in range(n):
a, c = map(int, input().split())
cities += [(a, c)]
ans += c
cities = sorted(cities, key=lambda city: city[0])
mx = cities[0][0]+cities[0][1]... | output | 1 | 78,505 | 1 | 157,011 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n cities numbered from 1 to n, and city i has beauty a_i.
A salesman wants to start at city 1, visit every city exactly once, and return to city 1.
For all i≠ j, a flight from city i to city j costs max(c_i,a_j-a_i) dollars, wher... | instruction | 0 | 78,506 | 1 | 157,012 |
Tags: binary search, data structures, dp, greedy, shortest paths, sortings, two pointers
Correct Solution:
```
import sys
input=sys.stdin.readline
n=int(input())
l=[]
ans=0
for i in range(n):
d=input().split()
l.append(((int(d[0])),int(d[1])))
ans+=(int(d[1]))
l.sort()
maxa=l[0][0]+l[0][1]
for i in range(1,... | output | 1 | 78,506 | 1 | 157,013 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n cities numbered from 1 to n, and city i has beauty a_i.
A salesman wants to start at city 1, visit every city exactly once, and return to city 1.
For all i≠ j, a flight from city i to city j costs max(c_i,a_j-a_i) dollars, wher... | instruction | 0 | 78,507 | 1 | 157,014 |
Tags: binary search, data structures, dp, greedy, shortest paths, sortings, two pointers
Correct Solution:
```
mod = 1000000007
eps = 10**-9
def main():
import sys
input = sys.stdin.buffer.readline
N = int(input())
AC = []
ans = 0
for i in range(N):
a, c = map(int, input().split())
... | output | 1 | 78,507 | 1 | 157,015 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n cities numbered from 1 to n, and city i has beauty a_i.
A salesman wants to start at city 1, visit every city exactly once, and return to city 1.
For all i≠ j, a flight from city i to city j costs max(c_i,a_j-a_i) dollars, wher... | instruction | 0 | 78,508 | 1 | 157,016 |
Tags: binary search, data structures, dp, greedy, shortest paths, sortings, two pointers
Correct Solution:
```
import sys
from bisect import bisect_left
input = sys.stdin.readline
def solve():
n = int(input())
a = [tuple(map(int,input().split())) for i in range(n)]
a.sort()
c = a[0][0]
r = 0
for i in range(len(... | output | 1 | 78,508 | 1 | 157,017 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n cities numbered from 1 to n, and city i has beauty a_i.
A salesman wants to start at city 1, visit every city exactly once, and return to city 1.
For all i≠ j, a flight from city i to city j costs max(c_i,a_j-a_i) dollars, wher... | instruction | 0 | 78,509 | 1 | 157,018 |
Tags: binary search, data structures, dp, greedy, shortest paths, sortings, two pointers
Correct Solution:
```
#!/usr/bin/env python
import os
import sys
from io import BytesIO, IOBase
def main():
n = int(input())
city = []
for _ in range(n):
city.append(tuple(map(int,input().split())))
city.s... | output | 1 | 78,509 | 1 | 157,019 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n cities numbered from 1 to n, and city i has beauty a_i.
A salesman wants to start at city 1, visit every city exactly once, and return to city 1.
For all i≠ j, a flight from city i to city j costs max(c_i,a_j-a_i) dollars, wher... | instruction | 0 | 78,510 | 1 | 157,020 |
Tags: binary search, data structures, dp, greedy, shortest paths, sortings, two pointers
Correct Solution:
```
import io
import os
from collections import Counter, defaultdict, deque
from heapq import heappop, heappush
from itertools import permutations
def solve1(N, A, C):
best = float("inf")
for perm in p... | output | 1 | 78,510 | 1 | 157,021 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There are n cities numbered from 1 to n, and city i has beauty a_i.
A salesman wants to start at city 1, visit every city exactly once, and return to city 1.
For all i≠ j, a flight from city i to city j costs max(c_i,a_j-a_i) dollars, wher... | instruction | 0 | 78,511 | 1 | 157,022 |
Tags: binary search, data structures, dp, greedy, shortest paths, sortings, two pointers
Correct Solution:
```
import sys
input = sys.stdin.readline
import bisect
n=int(input())
seg_el=1<<((n+1).bit_length())
SEG=[1<<60]*(2*seg_el)
def getvalue(n,seg_el):
i=n+seg_el
ANS=1<<60
ANS=min(SEG[i],ANS)
... | output | 1 | 78,511 | 1 | 157,023 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n cities numbered from 1 to n, and city i has beauty a_i.
A salesman wants to start at city 1, visit every city exactly once, and return to city 1.
For all i≠ j, a flight from city i... | instruction | 0 | 78,512 | 1 | 157,024 |
Yes | output | 1 | 78,512 | 1 | 157,025 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n cities numbered from 1 to n, and city i has beauty a_i.
A salesman wants to start at city 1, visit every city exactly once, and return to city 1.
For all i≠ j, a flight from city i... | instruction | 0 | 78,513 | 1 | 157,026 |
Yes | output | 1 | 78,513 | 1 | 157,027 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n cities numbered from 1 to n, and city i has beauty a_i.
A salesman wants to start at city 1, visit every city exactly once, and return to city 1.
For all i≠ j, a flight from city i... | instruction | 0 | 78,514 | 1 | 157,028 |
Yes | output | 1 | 78,514 | 1 | 157,029 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n cities numbered from 1 to n, and city i has beauty a_i.
A salesman wants to start at city 1, visit every city exactly once, and return to city 1.
For all i≠ j, a flight from city i... | instruction | 0 | 78,515 | 1 | 157,030 |
Yes | output | 1 | 78,515 | 1 | 157,031 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n cities numbered from 1 to n, and city i has beauty a_i.
A salesman wants to start at city 1, visit every city exactly once, and return to city 1.
For all i≠ j, a flight from city i... | instruction | 0 | 78,516 | 1 | 157,032 |
No | output | 1 | 78,516 | 1 | 157,033 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n cities numbered from 1 to n, and city i has beauty a_i.
A salesman wants to start at city 1, visit every city exactly once, and return to city 1.
For all i≠ j, a flight from city i... | instruction | 0 | 78,517 | 1 | 157,034 |
No | output | 1 | 78,517 | 1 | 157,035 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n cities numbered from 1 to n, and city i has beauty a_i.
A salesman wants to start at city 1, visit every city exactly once, and return to city 1.
For all i≠ j, a flight from city i... | instruction | 0 | 78,518 | 1 | 157,036 |
No | output | 1 | 78,518 | 1 | 157,037 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are n cities numbered from 1 to n, and city i has beauty a_i.
A salesman wants to start at city 1, visit every city exactly once, and return to city 1.
For all i≠ j, a flight from city i... | instruction | 0 | 78,519 | 1 | 157,038 |
No | output | 1 | 78,519 | 1 | 157,039 |
Provide a correct Python 3 solution for this coding contest problem.
Tokyo has a very complex railway system. For example, there exists a partial map of lines and stations as shown in Figure D-1.
<image>
Figure D-1: A sample railway network
Suppose you are going to station D from station A. Obviously, the path wit... | instruction | 0 | 79,062 | 1 | 158,124 |
"Correct Solution:
```
def solve():
import sys
from itertools import combinations
from bisect import bisect
from heapq import heappush, heappop
file_input = sys.stdin
inf = float('inf')
while True:
n, m, c, s, g = map(int, file_input.readline().split())
if n == 0:
... | output | 1 | 79,062 | 1 | 158,125 |
Provide a correct Python 3 solution for this coding contest problem.
Tokyo has a very complex railway system. For example, there exists a partial map of lines and stations as shown in Figure D-1.
<image>
Figure D-1: A sample railway network
Suppose you are going to station D from station A. Obviously, the path wit... | instruction | 0 | 79,063 | 1 | 158,126 |
"Correct Solution:
```
import heapq
from collections import defaultdict
from functools import lru_cache
from bisect import bisect_right
while True:
N, M, C, S, G = map(int, input().split())
if N == M == C == S == G == 0: # 駅の数、路線の数10000、鉄道会社の数20、出発駅、目的地駅
break
#E = [[[] for _ in range(N + 1)] for ... | output | 1 | 79,063 | 1 | 158,127 |
Provide a correct Python 3 solution for this coding contest problem.
Tokyo has a very complex railway system. For example, there exists a partial map of lines and stations as shown in Figure D-1.
<image>
Figure D-1: A sample railway network
Suppose you are going to station D from station A. Obviously, the path wit... | instruction | 0 | 79,064 | 1 | 158,128 |
"Correct Solution:
```
import math,string,itertools,fractions,heapq,collections,re,array,bisect,sys,random,time,copy,functools
sys.setrecursionlimit(10**7)
inf = 10**20
eps = 1.0 / 10**10
mod = 10**9+7
dd = [(-1,0),(0,1),(1,0),(0,-1)]
ddn = [(-1,0),(-1,1),(0,1),(1,1),(1,0),(1,-1),(0,-1),(-1,-1)]
def LI(): return [int... | output | 1 | 79,064 | 1 | 158,129 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Tokyo has a very complex railway system. For example, there exists a partial map of lines and stations as shown in Figure D-1.
<image>
Figure D-1: A sample railway network
Suppose you are go... | instruction | 0 | 79,065 | 1 | 158,130 |
No | output | 1 | 79,065 | 1 | 158,131 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Tokyo has a very complex railway system. For example, there exists a partial map of lines and stations as shown in Figure D-1.
<image>
Figure D-1: A sample railway network
Suppose you are go... | instruction | 0 | 79,066 | 1 | 158,132 |
No | output | 1 | 79,066 | 1 | 158,133 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Tokyo has a very complex railway system. For example, there exists a partial map of lines and stations as shown in Figure D-1.
<image>
Figure D-1: A sample railway network
Suppose you are go... | instruction | 0 | 79,067 | 1 | 158,134 |
No | output | 1 | 79,067 | 1 | 158,135 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Tokyo has a very complex railway system. For example, there exists a partial map of lines and stations as shown in Figure D-1.
<image>
Figure D-1: A sample railway network
Suppose you are go... | instruction | 0 | 79,068 | 1 | 158,136 |
No | output | 1 | 79,068 | 1 | 158,137 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The Little Elephant loves Ukraine very much. Most of all he loves town Rozdol (ukr. "Rozdil").
However, Rozdil is dangerous to settle, so the Little Elephant wants to go to some other town. The Little Elephant doesn't like to spend much tim... | instruction | 0 | 79,396 | 1 | 158,792 |
Tags: brute force, implementation
Correct Solution:
```
n = int(input())
l = list(map(int, input().split()))
print([l.index(min(l))+1, "Still Rozdil"][l.count(min(l)) > 1])
``` | output | 1 | 79,396 | 1 | 158,793 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The Little Elephant loves Ukraine very much. Most of all he loves town Rozdol (ukr. "Rozdil").
However, Rozdil is dangerous to settle, so the Little Elephant wants to go to some other town. The Little Elephant doesn't like to spend much tim... | instruction | 0 | 79,397 | 1 | 158,794 |
Tags: brute force, implementation
Correct Solution:
```
b=int(input())
a=list(map(int,input().split()))
k=min(a)
if a.count(k)>1:
print("Still Rozdil")
else:
print(a.index(k)+1)
``` | output | 1 | 79,397 | 1 | 158,795 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The Little Elephant loves Ukraine very much. Most of all he loves town Rozdol (ukr. "Rozdil").
However, Rozdil is dangerous to settle, so the Little Elephant wants to go to some other town. The Little Elephant doesn't like to spend much tim... | instruction | 0 | 79,398 | 1 | 158,796 |
Tags: brute force, implementation
Correct Solution:
```
num_cities = int(input())
times = list(map(int, input().split()))
minimum = times[0]
multiple = False
city = 1
for pos, time in enumerate(times[1:]):
if time < minimum:
minimum = time
multiple = False
city = pos + 2
elif time == mi... | output | 1 | 79,398 | 1 | 158,797 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The Little Elephant loves Ukraine very much. Most of all he loves town Rozdol (ukr. "Rozdil").
However, Rozdil is dangerous to settle, so the Little Elephant wants to go to some other town. The Little Elephant doesn't like to spend much tim... | instruction | 0 | 79,399 | 1 | 158,798 |
Tags: brute force, implementation
Correct Solution:
```
n=int(input())
arr = [int(x) for x in input().strip().split()]
k = 10**9 + 1
count = 1
loc = 0
last = -1
for i in range(0,n):
if k>=arr[i]:
k=arr[i]
if last == arr[i]:
count+=1
else:
count=1
if not last==arr[i]:
last = arr[i]
loc=i
if count==1... | output | 1 | 79,399 | 1 | 158,799 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The Little Elephant loves Ukraine very much. Most of all he loves town Rozdol (ukr. "Rozdil").
However, Rozdil is dangerous to settle, so the Little Elephant wants to go to some other town. The Little Elephant doesn't like to spend much tim... | instruction | 0 | 79,400 | 1 | 158,800 |
Tags: brute force, implementation
Correct Solution:
```
n=input()
n=list(map(int,input().split()))
m=min(n)
if n.count(m)!=1:
print('Still Rozdil')
else:
print(n.index(m)+1)
``` | output | 1 | 79,400 | 1 | 158,801 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The Little Elephant loves Ukraine very much. Most of all he loves town Rozdol (ukr. "Rozdil").
However, Rozdil is dangerous to settle, so the Little Elephant wants to go to some other town. The Little Elephant doesn't like to spend much tim... | instruction | 0 | 79,401 | 1 | 158,802 |
Tags: brute force, implementation
Correct Solution:
```
n=int(input())
a=list(map(int,input().split()))
b=min(a)
q=0
for i in range(n):
if a[i]==b:
q+=1
if q>1:
print("Still Rozdil")
else:
print(a.index(b)+1)
``` | output | 1 | 79,401 | 1 | 158,803 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The Little Elephant loves Ukraine very much. Most of all he loves town Rozdol (ukr. "Rozdil").
However, Rozdil is dangerous to settle, so the Little Elephant wants to go to some other town. The Little Elephant doesn't like to spend much tim... | instruction | 0 | 79,402 | 1 | 158,804 |
Tags: brute force, implementation
Correct Solution:
```
n = input()
d = list(map(int,input().split()))
least = min(d)
if d.count(least) > 1:
print("Still Rozdil")
else:
print((d.index(least))+1)
``` | output | 1 | 79,402 | 1 | 158,805 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The Little Elephant loves Ukraine very much. Most of all he loves town Rozdol (ukr. "Rozdil").
However, Rozdil is dangerous to settle, so the Little Elephant wants to go to some other town. The Little Elephant doesn't like to spend much tim... | instruction | 0 | 79,403 | 1 | 158,806 |
Tags: brute force, implementation
Correct Solution:
```
if __name__== "__main__":
n=int(input())
town_Distances=input()
town_Distances=town_Distances.split(" ")
town_Distances=[int(i) for i in town_Distances]
minm=min(town_Distances)
frq=0
index=1
ans=0
for i in town_Distances:
... | output | 1 | 79,403 | 1 | 158,807 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The Little Elephant loves Ukraine very much. Most of all he loves town Rozdol (ukr. "Rozdil").
However, Rozdil is dangerous to settle, so the Little Elephant wants to go to some other town. The... | instruction | 0 | 79,404 | 1 | 158,808 |
Yes | output | 1 | 79,404 | 1 | 158,809 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The Little Elephant loves Ukraine very much. Most of all he loves town Rozdol (ukr. "Rozdil").
However, Rozdil is dangerous to settle, so the Little Elephant wants to go to some other town. The... | instruction | 0 | 79,405 | 1 | 158,810 |
Yes | output | 1 | 79,405 | 1 | 158,811 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The Little Elephant loves Ukraine very much. Most of all he loves town Rozdol (ukr. "Rozdil").
However, Rozdil is dangerous to settle, so the Little Elephant wants to go to some other town. The... | instruction | 0 | 79,406 | 1 | 158,812 |
Yes | output | 1 | 79,406 | 1 | 158,813 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The Little Elephant loves Ukraine very much. Most of all he loves town Rozdol (ukr. "Rozdil").
However, Rozdil is dangerous to settle, so the Little Elephant wants to go to some other town. The... | instruction | 0 | 79,407 | 1 | 158,814 |
Yes | output | 1 | 79,407 | 1 | 158,815 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The Little Elephant loves Ukraine very much. Most of all he loves town Rozdol (ukr. "Rozdil").
However, Rozdil is dangerous to settle, so the Little Elephant wants to go to some other town. The... | instruction | 0 | 79,408 | 1 | 158,816 |
No | output | 1 | 79,408 | 1 | 158,817 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The Little Elephant loves Ukraine very much. Most of all he loves town Rozdol (ukr. "Rozdil").
However, Rozdil is dangerous to settle, so the Little Elephant wants to go to some other town. The... | instruction | 0 | 79,409 | 1 | 158,818 |
No | output | 1 | 79,409 | 1 | 158,819 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The Little Elephant loves Ukraine very much. Most of all he loves town Rozdol (ukr. "Rozdil").
However, Rozdil is dangerous to settle, so the Little Elephant wants to go to some other town. The... | instruction | 0 | 79,410 | 1 | 158,820 |
No | output | 1 | 79,410 | 1 | 158,821 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The Little Elephant loves Ukraine very much. Most of all he loves town Rozdol (ukr. "Rozdil").
However, Rozdil is dangerous to settle, so the Little Elephant wants to go to some other town. The... | instruction | 0 | 79,411 | 1 | 158,822 |
No | output | 1 | 79,411 | 1 | 158,823 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Tomash keeps wandering off and getting lost while he is walking along the streets of Berland. It's no surprise! In his home town, for any pair of intersections there is exactly one way to walk from one intersection to the other one. The capi... | instruction | 0 | 79,504 | 1 | 159,008 |
Tags: brute force, combinatorics, dfs and similar, graphs
Correct Solution:
```
import sys
from collections import defaultdict, Counter
# sys.stdin = open('input.txt', 'r')
# sys.stdout = open('output.txt', 'w')
input = sys.stdin.readline
n, m = map(int, input().split())
g = defaultdict(list)
for _ in range(m):
... | output | 1 | 79,504 | 1 | 159,009 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Tomash keeps wandering off and getting lost while he is walking along the streets of Berland. It's no surprise! In his home town, for any pair of intersections there is exactly one way to walk from one intersection to the other one. The capi... | instruction | 0 | 79,505 | 1 | 159,010 |
Tags: brute force, combinatorics, dfs and similar, graphs
Correct Solution:
```
from sys import stdin
inp = stdin.readline
n, m = map(int, inp().split())
g = {x: [] for x in range(1, n + 1)}
for _ in range(m):
a, b = map(int, inp().split())
g[a].append(b)
ans = 0
for i in range(1, n + 1):
d = {}
for j i... | output | 1 | 79,505 | 1 | 159,011 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Tomash keeps wandering off and getting lost while he is walking along the streets of Berland. It's no surprise! In his home town, for any pair of intersections there is exactly one way to walk from one intersection to the other one. The capi... | instruction | 0 | 79,506 | 1 | 159,012 |
Tags: brute force, combinatorics, dfs and similar, graphs
Correct Solution:
```
l=input().strip().split(" ");
n=int(l[0]);
m=int(l[1]);
t=m;
v=[];
for i in range(n+1):
v.append([]);
while t>0:
l=input().strip().split(" ");
a=int(l[0]);
b=int(l[1]);
v[a].append(b);
t-=1;
ans=0 ;
for p in range(1,n+1):
gp=... | output | 1 | 79,506 | 1 | 159,013 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Tomash keeps wandering off and getting lost while he is walking along the streets of Berland. It's no surprise! In his home town, for any pair of intersections there is exactly one way to walk from one intersection to the other one. The capi... | instruction | 0 | 79,507 | 1 | 159,014 |
Tags: brute force, combinatorics, dfs and similar, graphs
Correct Solution:
```
from sys import stdin
input=lambda : stdin.readline().strip()
from math import ceil,sqrt,factorial,gcd
from collections import deque
from bisect import bisect_left
n,m=map(int,input().split())
graph={i:set() for i in range(1,n+1)}
for i in ... | output | 1 | 79,507 | 1 | 159,015 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Tomash keeps wandering off and getting lost while he is walking along the streets of Berland. It's no surprise! In his home town, for any pair of intersections there is exactly one way to walk from one intersection to the other one. The capi... | instruction | 0 | 79,508 | 1 | 159,016 |
Tags: brute force, combinatorics, dfs and similar, graphs
Correct Solution:
```
import sys
n, m = [int(i) for i in sys.stdin.readline().split()]
to_sets = [set() for _ in range(n)]
from_sets = [set() for _ in range(n)]
for i in range(m):
m1, m2 = [int(i) for i in sys.stdin.readline().split()]
to_sets[m1-1].add... | output | 1 | 79,508 | 1 | 159,017 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Tomash keeps wandering off and getting lost while he is walking along the streets of Berland. It's no surprise! In his home town, for any pair of intersections there is exactly one way to walk from one intersection to the other one. The capi... | instruction | 0 | 79,509 | 1 | 159,018 |
Tags: brute force, combinatorics, dfs and similar, graphs
Correct Solution:
```
n,e=list(map(int,input().split()))
#d=[[0]*(n+1) for _ in range(n+1)]
dl={}
for itr in range(1,n+1): dl[itr]=set()
for itr in range(e):
a1,a2=list(map(int,input().split()))
#d[a1][a2]=1
dl[a1].add(a2)
ans=0
for i in range(1,n+1)... | output | 1 | 79,509 | 1 | 159,019 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Tomash keeps wandering off and getting lost while he is walking along the streets of Berland. It's no surprise! In his home town, for any pair of intersections there is exactly one way to walk from one intersection to the other one. The capi... | instruction | 0 | 79,510 | 1 | 159,020 |
Tags: brute force, combinatorics, dfs and similar, graphs
Correct Solution:
```
n,m=map(int,input().split())
adj=[]
for i in range(n):
adj.append([])
for i in range(m):
a,b=map(int,input().split())
adj[a-1].append(b)
ans=0
ncr=[]
for i in range(n):
m={}
for j in adj[i]:
for k in adj[j-1]:
if(k in m.keys()):
... | output | 1 | 79,510 | 1 | 159,021 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Tomash keeps wandering off and getting lost while he is walking along the streets of Berland. It's no surprise! In his home town, for any pair of intersections there is exactly one way to walk from one intersection to the other one. The capi... | instruction | 0 | 79,511 | 1 | 159,022 |
Tags: brute force, combinatorics, dfs and similar, graphs
Correct Solution:
```
import sys
from functools import lru_cache, cmp_to_key
from heapq import merge, heapify, heappop, heappush
from math import *
from collections import defaultdict as dd, deque, Counter as C
from itertools import combinations as comb, permuta... | output | 1 | 79,511 | 1 | 159,023 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Tomash keeps wandering off and getting lost while he is walking along the streets of Berland. It's no surprise! In his home town, for any pair of intersections there is exactly one way to walk f... | instruction | 0 | 79,512 | 1 | 159,024 |
No | output | 1 | 79,512 | 1 | 159,025 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Tomash keeps wandering off and getting lost while he is walking along the streets of Berland. It's no surprise! In his home town, for any pair of intersections there is exactly one way to walk f... | instruction | 0 | 79,513 | 1 | 159,026 |
No | output | 1 | 79,513 | 1 | 159,027 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Tomash keeps wandering off and getting lost while he is walking along the streets of Berland. It's no surprise! In his home town, for any pair of intersections there is exactly one way to walk f... | instruction | 0 | 79,514 | 1 | 159,028 |
No | output | 1 | 79,514 | 1 | 159,029 |
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