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.
The official capital and the cultural capital of Berland are connected by a single road running through n regions. Each region has a unique climate, so the i-th (1 β€ i β€ n) region has a stable temperature of ti degrees in summer.
This summe... | instruction | 0 | 21,479 | 1 | 42,958 |
Tags: greedy
Correct Solution:
```
import sys
import math
info = [int(x) for x in sys.stdin.readline().split()]
n_stations, n_children = info[0], info[1]
min_sum = 0
for i in range(n_stations):
values = [int(x) for x in sys.stdin.readline().split()]
initial_temp, temp_limit, cost_demanded, bus_price = \
... | output | 1 | 21,479 | 1 | 42,959 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The official capital and the cultural capital of Berland are connected by a single road running through n regions. Each region has a unique climate, so the i-th (1 β€ i β€ n) region has a stable temperature of ti degrees in summer.
This summe... | instruction | 0 | 21,480 | 1 | 42,960 |
Tags: greedy
Correct Solution:
```
import sys
n, m = map(int, sys.stdin.readline().split())
ans = 0
for _ in range(n):
ti, Ti, xi, ci = map(int, sys.stdin.readline().split())
cost = xi * m * (ti + m > Ti) + ci
if ti < Ti:
cost2 = ci * ((m - 1) // (Ti - ti) + 1)
cost = min(cost, cost2)
... | output | 1 | 21,480 | 1 | 42,961 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The official capital and the cultural capital of Berland are connected by a single road running through n regions. Each region has a unique climate, so the i-th (1 β€ i β€ n) region has a stable temperature of ti degrees in summer.
This summe... | instruction | 0 | 21,481 | 1 | 42,962 |
Tags: greedy
Correct Solution:
```
import math;
s = input()
a = s.find(" ")
n = int(s[0:a])
students = int(s[a+1:len(s)])
sum = 0
for i in range(n):
s = input()
a = s.find(" ")
temp = int(s[0:a])
s = s[a+1:len(s)]
a = s.find(" ")
maxTemp = int(s[0:a])
s = s[a+1:len(s)]
a = s.find(" ... | output | 1 | 21,481 | 1 | 42,963 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The official capital and the cultural capital of Berland are connected by a single road running through n regions. Each region has a unique climate, so the i-th (1 β€ i β€ n) region has a stable temperature of ti degrees in summer.
This summe... | instruction | 0 | 21,482 | 1 | 42,964 |
Tags: greedy
Correct Solution:
```
n, m = map(int, input().split())
s = 0
for i in range(n):
t, T, x, c = map(int, input().split())
k = T - t
if k > 0:
l = m // k
if l == 0: s += c
elif m == l * k: s += min(c * l, c + x * m)
else: s += min(c * (l + 1), c * l + x * (m - (l - 1... | output | 1 | 21,482 | 1 | 42,965 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The official capital and the cultural capital of Berland are connected by a single road running through n regions. Each region has a unique climate, so the i-th (1 β€ i β€ n) region has a stable temperature of ti degrees in summer.
This summe... | instruction | 0 | 21,483 | 1 | 42,966 |
Tags: greedy
Correct Solution:
```
import sys
input=sys.stdin.readline
l=input().split()
n=int(l[0])
m=int(l[1])
ans=0
for i in range(n):
l=input().split()
ti=int(l[0])
Ti=int(l[1])
xi=int(l[2])
cost=int(l[3])
if(ti>=Ti):
ans+=(xi*m)
ans+=cost
continue
maxcap=Ti-ti
... | output | 1 | 21,483 | 1 | 42,967 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The official capital and the cultural capital of Berland are connected by a single road running through n regions. Each region has a unique climate, so the i-th (1 β€ i β€ n) region has a stable temperature of ti degrees in summer.
This summe... | instruction | 0 | 21,484 | 1 | 42,968 |
Tags: greedy
Correct Solution:
```
#------------------------template--------------------------#
import os
import sys
from math import *
from collections import *
# from fractions import *
# from heapq import*
from bisect import *
from io import BytesIO, IOBase
def vsInput():
sys.stdin = open('input.txt', 'r')
s... | output | 1 | 21,484 | 1 | 42,969 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The official capital and the cultural capital of Berland are connected by a single road running through n regions. Each region has a unique climate, so the i-th (1 β€ i β€ n) region has a stable t... | instruction | 0 | 21,485 | 1 | 42,970 |
No | output | 1 | 21,485 | 1 | 42,971 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The official capital and the cultural capital of Berland are connected by a single road running through n regions. Each region has a unique climate, so the i-th (1 β€ i β€ n) region has a stable t... | instruction | 0 | 21,486 | 1 | 42,972 |
No | output | 1 | 21,486 | 1 | 42,973 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The official capital and the cultural capital of Berland are connected by a single road running through n regions. Each region has a unique climate, so the i-th (1 β€ i β€ n) region has a stable t... | instruction | 0 | 21,487 | 1 | 42,974 |
No | output | 1 | 21,487 | 1 | 42,975 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The official capital and the cultural capital of Berland are connected by a single road running through n regions. Each region has a unique climate, so the i-th (1 β€ i β€ n) region has a stable t... | instruction | 0 | 21,488 | 1 | 42,976 |
No | output | 1 | 21,488 | 1 | 42,977 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Volodya has recently visited a very odd town. There are N tourist attractions in the town and every two of them are connected by a bidirectional road. Each road has some travel price (natural number) assigned to it and all prices are distinc... | instruction | 0 | 21,552 | 1 | 43,104 |
Tags: constructive algorithms, math
Correct Solution:
```
#codeforces 42d: strange town: math, constructive algorithm
def readGen(trans):
while 1:
for x in input().split():
yield(trans(x))
readint=readGen(int)
n=next(readint)
def constructRow(n):
can=[1 for i in range(1001)]
b=[0 for i in range(n+1)]
b[2]=1... | output | 1 | 21,552 | 1 | 43,105 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Volodya has recently visited a very odd town. There are N tourist attractions in the town and every two of them are connected by a bidirectional road. Each road has some travel price (natural number) assigned to it and all prices are distinc... | instruction | 0 | 21,553 | 1 | 43,106 |
Tags: constructive algorithms, math
Correct Solution:
```
n = int(input())
massa = [1]
i = 2
d = set()
while( len(massa) != n ):
test = True
for el in massa:
if(el + i in d):
test = False
break
if(test == True):
for el in massa:
d.add(el+i)
massa.append(i)
i=i+1
for b in massa:
a... | output | 1 | 21,553 | 1 | 43,107 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In one kingdom there are n cities and m two-way roads. Each road connects a pair of cities, and for each road we know the level of drivers dissatisfaction β the value wi.
For each road we know ... | instruction | 0 | 21,656 | 1 | 43,312 |
No | output | 1 | 21,656 | 1 | 43,313 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In one kingdom there are n cities and m two-way roads. Each road connects a pair of cities, and for each road we know the level of drivers dissatisfaction β the value wi.
For each road we know ... | instruction | 0 | 21,657 | 1 | 43,314 |
No | output | 1 | 21,657 | 1 | 43,315 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In one kingdom there are n cities and m two-way roads. Each road connects a pair of cities, and for each road we know the level of drivers dissatisfaction β the value wi.
For each road we know ... | instruction | 0 | 21,658 | 1 | 43,316 |
No | output | 1 | 21,658 | 1 | 43,317 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In one kingdom there are n cities and m two-way roads. Each road connects a pair of cities, and for each road we know the level of drivers dissatisfaction β the value wi.
For each road we know ... | instruction | 0 | 21,659 | 1 | 43,318 |
No | output | 1 | 21,659 | 1 | 43,319 |
Provide a correct Python 3 solution for this coding contest problem.
JOI Park
In preparation for the Olympic Games in IOI in 20XX, the JOI Park in IOI will be developed. There are N squares in JOI Park, and the squares are numbered from 1 to N. There are M roads connecting the squares, and the roads are numbered from... | instruction | 0 | 21,956 | 1 | 43,912 |
"Correct Solution:
```
from heapq import heappush, heappop
INF = 10 ** 20
n, m, c = map(int, input().split())
edges = [[] for _ in range(n)]
edges_dict = {}
d_cost = 0
for _ in range(m):
a, b, d = map(int, input().split())
a -= 1
b -= 1
edges[a].append((b, d))
edges[b].append((a, d))
edges_dict[(a, b)] = d... | output | 1 | 21,956 | 1 | 43,913 |
Provide a correct Python 3 solution for this coding contest problem.
JOI Park
In preparation for the Olympic Games in IOI in 20XX, the JOI Park in IOI will be developed. There are N squares in JOI Park, and the squares are numbered from 1 to N. There are M roads connecting the squares, and the roads are numbered from... | instruction | 0 | 21,957 | 1 | 43,914 |
"Correct Solution:
```
from heapq import heappush, heappop
N, M, C = map(int, input().split())
G = [[] for i in range(N)]
E = []
for i in range(M):
a, b, d = map(int, input().split()); a -= 1; b -= 1
G[a].append((b, d))
G[b].append((a, d))
E.append((a, b, d))
INF = 10**18
dist = [INF]*N
dist[0] = 0
que... | output | 1 | 21,957 | 1 | 43,915 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Arkady bought an air ticket from a city A to a city C. Unfortunately, there are no direct flights, but there are a lot of flights from A to a city B, and from B to C.
There are n flights from A to B, they depart at time moments a_1, a_2, a_... | instruction | 0 | 22,068 | 1 | 44,136 |
Tags: binary search, brute force, two pointers
Correct Solution:
```
from bisect import bisect_left as lb
n, m, x, y, k = map(int, input().split())
a = list(map(int, input().split()))
b = list(map(int, input().split()))
mx=0
if(k>=n or k>=m):
exit(print(-1))
for i in range(k+1):
pos=lb(b,a[i]+x)
if(m-pos<=k... | output | 1 | 22,068 | 1 | 44,137 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Arkady bought an air ticket from a city A to a city C. Unfortunately, there are no direct flights, but there are a lot of flights from A to a city B, and from B to C.
There are n flights from A to B, they depart at time moments a_1, a_2, a_... | instruction | 0 | 22,069 | 1 | 44,138 |
Tags: binary search, brute force, two pointers
Correct Solution:
```
from __future__ import division, print_function
import os,sys
from io import BytesIO, IOBase
if sys.version_info[0] < 3:
from __builtin__ import xrange as range
from future_builtins import ascii, filter, hex, map, oct, zip
from bisect impor... | output | 1 | 22,069 | 1 | 44,139 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Arkady bought an air ticket from a city A to a city C. Unfortunately, there are no direct flights, but there are a lot of flights from A to a city B, and from B to C.
There are n flights from A to B, they depart at time moments a_1, a_2, a_... | instruction | 0 | 22,070 | 1 | 44,140 |
Tags: binary search, brute force, two pointers
Correct Solution:
```
n, m, ta, tb, k = map(int, input().split())
a = [*map(int, input().split())]
b = [*map(int, input().split())]
a = [i + ta for i in a]
from bisect import bisect_left
ans = 0
if k >= min(n, m):
print(-1)
exit()
for i in range(k + 1):
t = bisect_l... | output | 1 | 22,070 | 1 | 44,141 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Arkady bought an air ticket from a city A to a city C. Unfortunately, there are no direct flights, but there are a lot of flights from A to a city B, and from B to C.
There are n flights from A to B, they depart at time moments a_1, a_2, a_... | instruction | 0 | 22,071 | 1 | 44,142 |
Tags: binary search, brute force, two pointers
Correct Solution:
```
from bisect import*
i=lambda:[*map(int,input().split())]
try:_,_,t,u,k=i();a=i();b=i();print(max(u+b[bisect_left(b,a[x]+t)+k-x]for x in range(k+1)))
except:print(-1)
``` | output | 1 | 22,071 | 1 | 44,143 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Arkady bought an air ticket from a city A to a city C. Unfortunately, there are no direct flights, but there are a lot of flights from A to a city B, and from B to C.
There are n flights from A to B, they depart at time moments a_1, a_2, a_... | instruction | 0 | 22,072 | 1 | 44,144 |
Tags: binary search, brute force, two pointers
Correct Solution:
```
from sys import stdin
import math
from collections import defaultdict
import bisect
#stdin = open('input.txt','r')
def upper(arr,x,n):
start = 0
end = n
while(start<end):
mid = (start+end)//2
if(x>arr[mid]):
start = mid+1
else:
end... | output | 1 | 22,072 | 1 | 44,145 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Arkady bought an air ticket from a city A to a city C. Unfortunately, there are no direct flights, but there are a lot of flights from A to a city B, and from B to C.
There are n flights from A to B, they depart at time moments a_1, a_2, a_... | instruction | 0 | 22,073 | 1 | 44,146 |
Tags: binary search, brute force, two pointers
Correct Solution:
```
import sys,math
def read_int():
return int(sys.stdin.readline().strip())
def read_int_list():
return list(map(int,sys.stdin.readline().strip().split()))
def read_string():
return sys.stdin.readline().strip()
def read_string_list(delim=" "):
re... | output | 1 | 22,073 | 1 | 44,147 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Arkady bought an air ticket from a city A to a city C. Unfortunately, there are no direct flights, but there are a lot of flights from A to a city B, and from B to C.
There are n flights from A to B, they depart at time moments a_1, a_2, a_... | instruction | 0 | 22,074 | 1 | 44,148 |
Tags: binary search, brute force, two pointers
Correct Solution:
```
import bisect
import sys
input = sys.stdin.readline
n, m, ta, tb, k = map(int, input().split())
a = list(map(int, input().split()))
b = list(map(int, input().split()))
a = [i+ta for i in a]
ans = 0
for i in range(n):
cancel = k-i
if cancel >... | output | 1 | 22,074 | 1 | 44,149 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Arkady bought an air ticket from a city A to a city C. Unfortunately, there are no direct flights, but there are a lot of flights from A to a city B, and from B to C.
There are n flights from A to B, they depart at time moments a_1, a_2, a_... | instruction | 0 | 22,075 | 1 | 44,150 |
Tags: binary search, brute force, two pointers
Correct Solution:
```
import bisect
n,m,ta,tb,k=map(int,input().split(" "))
a=list(map(int,input().split(" ")))
b=list(map(int,input().split(" ")))
ans=0
try:
for i in range(0,k+1):
l=bisect.bisect_left(b,a[i]+ta)
t=l+k-i
ans= max(ans,b[t]+tb)
... | output | 1 | 22,075 | 1 | 44,151 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Arkady bought an air ticket from a city A to a city C. Unfortunately, there are no direct flights, but there are a lot of flights from A to a city B, and from B to C.
There are n flights from A... | instruction | 0 | 22,076 | 1 | 44,152 |
Yes | output | 1 | 22,076 | 1 | 44,153 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Arkady bought an air ticket from a city A to a city C. Unfortunately, there are no direct flights, but there are a lot of flights from A to a city B, and from B to C.
There are n flights from A... | instruction | 0 | 22,077 | 1 | 44,154 |
Yes | output | 1 | 22,077 | 1 | 44,155 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Arkady bought an air ticket from a city A to a city C. Unfortunately, there are no direct flights, but there are a lot of flights from A to a city B, and from B to C.
There are n flights from A... | instruction | 0 | 22,078 | 1 | 44,156 |
Yes | output | 1 | 22,078 | 1 | 44,157 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Arkady bought an air ticket from a city A to a city C. Unfortunately, there are no direct flights, but there are a lot of flights from A to a city B, and from B to C.
There are n flights from A... | instruction | 0 | 22,079 | 1 | 44,158 |
Yes | output | 1 | 22,079 | 1 | 44,159 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Arkady bought an air ticket from a city A to a city C. Unfortunately, there are no direct flights, but there are a lot of flights from A to a city B, and from B to C.
There are n flights from A... | instruction | 0 | 22,080 | 1 | 44,160 |
No | output | 1 | 22,080 | 1 | 44,161 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Arkady bought an air ticket from a city A to a city C. Unfortunately, there are no direct flights, but there are a lot of flights from A to a city B, and from B to C.
There are n flights from A... | instruction | 0 | 22,081 | 1 | 44,162 |
No | output | 1 | 22,081 | 1 | 44,163 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Arkady bought an air ticket from a city A to a city C. Unfortunately, there are no direct flights, but there are a lot of flights from A to a city B, and from B to C.
There are n flights from A... | instruction | 0 | 22,082 | 1 | 44,164 |
No | output | 1 | 22,082 | 1 | 44,165 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Arkady bought an air ticket from a city A to a city C. Unfortunately, there are no direct flights, but there are a lot of flights from A to a city B, and from B to C.
There are n flights from A... | instruction | 0 | 22,083 | 1 | 44,166 |
No | output | 1 | 22,083 | 1 | 44,167 |
Provide tags and a correct Python 3 solution for this coding contest problem.
In some country there are exactly n cities and m bidirectional roads connecting the cities. Cities are numbered with integers from 1 to n. If cities a and b are connected by a road, then in an hour you can go along this road either from city... | instruction | 0 | 22,476 | 1 | 44,952 |
Tags: constructive algorithms, graphs, shortest paths
Correct Solution:
```
from itertools import combinations_with_replacement
from collections import deque
#sys.stdin = open("input_py.txt","r")
n, m = map(int, input().split())
G = [ [] for i in range(n)]
for i in range(m):
x, y = map(int, input().split())
... | output | 1 | 22,476 | 1 | 44,953 |
Provide tags and a correct Python 3 solution for this coding contest problem.
In some country there are exactly n cities and m bidirectional roads connecting the cities. Cities are numbered with integers from 1 to n. If cities a and b are connected by a road, then in an hour you can go along this road either from city... | instruction | 0 | 22,477 | 1 | 44,954 |
Tags: constructive algorithms, graphs, shortest paths
Correct Solution:
```
import sys
from collections import deque
n, m = [int(i) for i in sys.stdin.readline().split()]
neighbors = [set() for _ in range(n)]
for i in range(m):
m1, m2 = [int(i) for i in sys.stdin.readline().split()]
neighbors[m1-1].add(m2-1)
... | output | 1 | 22,477 | 1 | 44,955 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In some country there are exactly n cities and m bidirectional roads connecting the cities. Cities are numbered with integers from 1 to n. If cities a and b are connected by a road, then in an h... | instruction | 0 | 22,478 | 1 | 44,956 |
No | output | 1 | 22,478 | 1 | 44,957 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In some country there are exactly n cities and m bidirectional roads connecting the cities. Cities are numbered with integers from 1 to n. If cities a and b are connected by a road, then in an h... | instruction | 0 | 22,479 | 1 | 44,958 |
No | output | 1 | 22,479 | 1 | 44,959 |
Provide a correct Python 3 solution for this coding contest problem.
In Takahashi Kingdom, which once existed, there are N cities, and some pairs of cities are connected bidirectionally by roads. The following are known about the road network:
* People traveled between cities only through roads. It was possible to re... | instruction | 0 | 22,703 | 1 | 45,406 |
"Correct Solution:
```
def warshall_floyd(G, n):
global c
for i in range(n):
for j in range(n):
b = 1
for k in range(n):
if j == k or i == k:
continue
if G[i][j] == G[i][k] + G[k][j]:
b = 0
el... | output | 1 | 22,703 | 1 | 45,407 |
Provide a correct Python 3 solution for this coding contest problem.
In Takahashi Kingdom, which once existed, there are N cities, and some pairs of cities are connected bidirectionally by roads. The following are known about the road network:
* People traveled between cities only through roads. It was possible to re... | instruction | 0 | 22,704 | 1 | 45,408 |
"Correct Solution:
```
N = int(input())
A = [list(map(int, input().split())) for _ in range(N)]
flg_list = [[True] * N for _ in range(N)]
for k in range(N):
for i in range(N):
for j in range(N):
if A[i][j] > A[i][k] + A[k][j]:
print(-1)
exit()
if A[i... | output | 1 | 22,704 | 1 | 45,409 |
Provide a correct Python 3 solution for this coding contest problem.
In Takahashi Kingdom, which once existed, there are N cities, and some pairs of cities are connected bidirectionally by roads. The following are known about the road network:
* People traveled between cities only through roads. It was possible to re... | instruction | 0 | 22,705 | 1 | 45,410 |
"Correct Solution:
```
n=int(input())
a=[list(map(int,input().split())) for _ in [0]*n]
for i in range(n):
for j in range(n):
for k in range(n):
if a[i][j] > a[i][k] + a[k][j]:
print(-1)
exit()
ans=0
for i in range(n):
for j in range(i+1,n):
for k in r... | output | 1 | 22,705 | 1 | 45,411 |
Provide a correct Python 3 solution for this coding contest problem.
In Takahashi Kingdom, which once existed, there are N cities, and some pairs of cities are connected bidirectionally by roads. The following are known about the road network:
* People traveled between cities only through roads. It was possible to re... | instruction | 0 | 22,706 | 1 | 45,412 |
"Correct Solution:
```
import heapq
import sys
N = int(input())
r = [[1]*N for _ in range(N)]
g = [[]*N for _ in range(N)]
all = 0
for i in range(N):
temp = list(map(int,(input().split())))
g[i] = temp
all += sum(temp)
#print(g,all)
for k in range(N):
for i in range(N):
for j in range(N):
if g[i][j]... | output | 1 | 22,706 | 1 | 45,413 |
Provide a correct Python 3 solution for this coding contest problem.
In Takahashi Kingdom, which once existed, there are N cities, and some pairs of cities are connected bidirectionally by roads. The following are known about the road network:
* People traveled between cities only through roads. It was possible to re... | instruction | 0 | 22,707 | 1 | 45,414 |
"Correct Solution:
```
import sys
from copy import deepcopy
N = int(input())
A = [[int(x) for x in input().split()] for _ in range(N)]
B = deepcopy(A)
for k in range(N):
for i in range(N):
for j in range(N):
if i == j or j == k or k == i:
continue
if A[i][k] + A[k][j... | output | 1 | 22,707 | 1 | 45,415 |
Provide a correct Python 3 solution for this coding contest problem.
In Takahashi Kingdom, which once existed, there are N cities, and some pairs of cities are connected bidirectionally by roads. The following are known about the road network:
* People traveled between cities only through roads. It was possible to re... | instruction | 0 | 22,708 | 1 | 45,416 |
"Correct Solution:
```
import copy
N = int(input())
graph = []
for i in range(N):
graph.append( list(map(int,input().split())) )
dp = copy.deepcopy(graph)
for k in range(N):
for i in range(N):
for j in range(N):
dp[i][j] = min(dp[i][j], dp[i][k]+dp[k][j])
res = 0
for i in range(N):
for j in range(N)... | output | 1 | 22,708 | 1 | 45,417 |
Provide a correct Python 3 solution for this coding contest problem.
In Takahashi Kingdom, which once existed, there are N cities, and some pairs of cities are connected bidirectionally by roads. The following are known about the road network:
* People traveled between cities only through roads. It was possible to re... | instruction | 0 | 22,709 | 1 | 45,418 |
"Correct Solution:
```
N = int(input())
A = [list(map(int, input().split())) for _ in range(N)]
for k in range(N):
for i in range(N):
for j in range(N):
#
if A[i][j] > A[i][k] + A[k][j]:
print(-1)
exit()
ans = 0
for i in range(N):
for j in ra... | output | 1 | 22,709 | 1 | 45,419 |
Provide a correct Python 3 solution for this coding contest problem.
In Takahashi Kingdom, which once existed, there are N cities, and some pairs of cities are connected bidirectionally by roads. The following are known about the road network:
* People traveled between cities only through roads. It was possible to re... | instruction | 0 | 22,710 | 1 | 45,420 |
"Correct Solution:
```
import copy
n=int(input())
a=[]
ans=0
for _ in range(n):
b=list(map(int,input().split()))
ans+=sum(b)
a.append(b)
c=copy.deepcopy(a)
for i in range(n):
for j in range(n):
ch=0
for k in range(n):
if c[i][j]==c[i][k]+c[k][j] and ch==0 and i!=k and j!=k:
ans-=c[i... | output | 1 | 22,710 | 1 | 45,421 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In Takahashi Kingdom, which once existed, there are N cities, and some pairs of cities are connected bidirectionally by roads. The following are known about the road network:
* People traveled ... | instruction | 0 | 22,711 | 1 | 45,422 |
Yes | output | 1 | 22,711 | 1 | 45,423 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In Takahashi Kingdom, which once existed, there are N cities, and some pairs of cities are connected bidirectionally by roads. The following are known about the road network:
* People traveled ... | instruction | 0 | 22,712 | 1 | 45,424 |
Yes | output | 1 | 22,712 | 1 | 45,425 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In Takahashi Kingdom, which once existed, there are N cities, and some pairs of cities are connected bidirectionally by roads. The following are known about the road network:
* People traveled ... | instruction | 0 | 22,713 | 1 | 45,426 |
Yes | output | 1 | 22,713 | 1 | 45,427 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
In Takahashi Kingdom, which once existed, there are N cities, and some pairs of cities are connected bidirectionally by roads. The following are known about the road network:
* People traveled ... | instruction | 0 | 22,714 | 1 | 45,428 |
Yes | output | 1 | 22,714 | 1 | 45,429 |
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