#include "closing.h"
#include <bits/stdc++.h>
using namespace std;
using Graph = vector<vector<pair<int, long long>>> ;
void dfs(int u, int par, const Graph& g, vector<long long>& dist) {
for(auto [v, w] : g[u]) {
if(v == par) continue ;
dist[v] = dist[u] + w;
dfs(v, u, g, dist);
}
}
int sub1(int N, long long K, vector<long long> dX, vector<long long> dY) {
vector<long long> a;
for(int i = 0; i < N; i ++) {
a.push_back(dX[i]);
a.push_back(dY[i]);
}
sort(a.begin(), a.end());
long long sum = 0;
int ans = 0;
for(long long x : a) {
if(sum + x > K) break ;
sum += x;
ans += 1;
}
return ans;
}
int max_score(int N, int X, int Y, long long K, vector<int> U, vector<int> V, vector<int> W) {
Graph g(N);
vector<long long> dX(N, 0), dY(N, 0);
for(int i = 0; i < N - 1; i ++) {
g[U[i]].push_back({V[i], W[i]});
g[V[i]].push_back({U[i], W[i]});
}
dfs(X, X, g, dX);
dfs(Y, Y, g, dY);
if(dX[Y] > 2 * K) return sub1(N, K, dX, dY);
}
// int main() {
// int N, X, Y;
// long long K;
// cin >> N >> X >> Y >> K;
// vector<int> U(N), V(N), W(N);
// for(int i = 0; i < N - 1; i ++) {
// cin >> U[i] >> V[i] >> W[i];
// }
// cout << max_score(N, X, Y, K, U, V, W) << "\n";
// return 0;
// }
Compilation message
closing.cpp: In function 'int max_score(int, int, int, long long int, std::vector<int>, std::vector<int>, std::vector<int>)':
closing.cpp:40:14: warning: control reaches end of non-void function [-Wreturn-type]
40 | Graph g(N);
| ^
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
1 ms |
344 KB |
Execution killed with signal 6 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
128 ms |
37060 KB |
Output is correct |
2 |
Correct |
139 ms |
43456 KB |
Output is correct |
3 |
Correct |
72 ms |
3016 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
1 ms |
344 KB |
Execution killed with signal 6 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
1 ms |
344 KB |
Execution killed with signal 6 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
1 ms |
344 KB |
Execution killed with signal 6 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
1 ms |
344 KB |
Execution killed with signal 6 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
1 ms |
344 KB |
Execution killed with signal 6 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
1 ms |
344 KB |
Execution killed with signal 6 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
1 ms |
344 KB |
Execution killed with signal 6 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
1 ms |
344 KB |
Execution killed with signal 6 |
2 |
Halted |
0 ms |
0 KB |
- |