#include "bits/stdc++.h"
#define MAX_N 500000
using namespace std;
const int Na = 1e3 + 5;
vector<pair<int, int>> adj[Na];
int mn = INT_MAX;
int Ka;
int dfs(int x, int pr, int gal, int edge){
if(!(gal^Ka))
return edge;
if(gal > Ka)
return Na;
for(auto &i : adj[x])
if(i.first != pr)
mn = min(mn, dfs(i.first, x, gal + i.second, edge + 1));
return mn;
}
int best_path(int n, int k, int H[][2], int L[]){
Ka = k;
for(int i = 0; i < n - 1; ++i){
int a = H[i][0], b = H[i][1];
adj[a].push_back({b, L[i]});
adj[b].push_back({a, L[i]});
}
int answer = INT_MAX;
for(int i = 0; i < n; ++i)
answer = min(answer, dfs(i, -1, 0, 0));
return (answer >= Na ? -1 : answer);
}
//static int N, K;
//static int H[MAX_N][2];
//static int L[MAX_N];
//static int solution;
//
//inline
//void my_assert(int e) {if (!e) abort();}
//
//void read_input()
//{
// int i;
// my_assert(2==scanf("%d %d",&N,&K));
// for(i=0; i<N-1; i++)
// my_assert(3==scanf("%d %d %d",&H[i][0],&H[i][1],&L[i]));
// my_assert(1==scanf("%d",&solution));
//}
//
//int main() {
// int ans;
// read_input();
// ans = best_path(N,K,H,L);
// if(ans==solution)
// printf("Correct.\n");
// else
// printf("Incorrect. Returned %d, Expected %d.\n",ans,solution);
//
// return 0;
//}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 15 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 16 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 17 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 18 |
Correct |
1 ms |
2396 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 15 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 16 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 17 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 18 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 20 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 21 |
Correct |
7 ms |
2396 KB |
Output is correct |
| 22 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 23 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 24 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 25 |
Correct |
7 ms |
2564 KB |
Output is correct |
| 26 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 27 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 28 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 29 |
Correct |
5 ms |
2396 KB |
Output is correct |
| 30 |
Correct |
6 ms |
2560 KB |
Output is correct |
| 31 |
Correct |
7 ms |
2644 KB |
Output is correct |
| 32 |
Correct |
7 ms |
2392 KB |
Output is correct |
| 33 |
Correct |
7 ms |
2564 KB |
Output is correct |
| 34 |
Correct |
2 ms |
2404 KB |
Output is correct |
| 35 |
Correct |
1 ms |
2516 KB |
Output is correct |
| 36 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 37 |
Correct |
6 ms |
2396 KB |
Output is correct |
| 38 |
Correct |
8 ms |
2596 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 15 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 16 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 17 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 18 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 19 |
Runtime error |
22 ms |
9308 KB |
Execution killed with signal 11 |
| 20 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 15 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 16 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 17 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 18 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 20 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 21 |
Correct |
7 ms |
2396 KB |
Output is correct |
| 22 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 23 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 24 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 25 |
Correct |
7 ms |
2564 KB |
Output is correct |
| 26 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 27 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 28 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 29 |
Correct |
5 ms |
2396 KB |
Output is correct |
| 30 |
Correct |
6 ms |
2560 KB |
Output is correct |
| 31 |
Correct |
7 ms |
2644 KB |
Output is correct |
| 32 |
Correct |
7 ms |
2392 KB |
Output is correct |
| 33 |
Correct |
7 ms |
2564 KB |
Output is correct |
| 34 |
Correct |
2 ms |
2404 KB |
Output is correct |
| 35 |
Correct |
1 ms |
2516 KB |
Output is correct |
| 36 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 37 |
Correct |
6 ms |
2396 KB |
Output is correct |
| 38 |
Correct |
8 ms |
2596 KB |
Output is correct |
| 39 |
Runtime error |
22 ms |
9308 KB |
Execution killed with signal 11 |
| 40 |
Halted |
0 ms |
0 KB |
- |
