#include <bits/stdc++.h>
using namespace std;
const int nx=1e5+5;
int n, m, h[nx], u, v, sz, res[nx];
vector<pair<int, int>> d[nx];
void dfs(int u, int p, int idx)
{
for (auto [v, id]:d[u]) if (v!=p) dfs(v, u, id);
if (idx==-1) return;
res[idx]=2*h[u];
h[p]-=h[u];
}
int main()
{
cin.tie(NULL)->sync_with_stdio(false);
cin>>n>>m;
for (int i=1; i<=n; i++) cin>>h[i];
for (int i=1; i<=m; i++) cin>>u>>v, d[u].push_back({v, i}), d[v].push_back({u, i});
if (m>=n)
{
cout<<0;
return 0;
}
dfs(1, 1, -1);
for (int i=1; i<n; i++) cout<<res[i]<<'\n';
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 4 |
Correct |
38 ms |
9240 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2704 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2904 KB |
Output is correct |
| 13 |
Correct |
28 ms |
7804 KB |
Output is correct |
| 14 |
Correct |
33 ms |
8784 KB |
Output is correct |
| 15 |
Correct |
44 ms |
9312 KB |
Output is correct |
| 16 |
Correct |
29 ms |
8276 KB |
Output is correct |
| 17 |
Correct |
34 ms |
9296 KB |
Output is correct |
| 18 |
Correct |
34 ms |
9224 KB |
Output is correct |
| 19 |
Correct |
41 ms |
11752 KB |
Output is correct |
| 20 |
Correct |
1 ms |
2804 KB |
Output is correct |
| 21 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 22 |
Correct |
35 ms |
9300 KB |
Output is correct |
| 23 |
Correct |
27 ms |
7776 KB |
Output is correct |
| 24 |
Correct |
34 ms |
9228 KB |
Output is correct |
| 25 |
Correct |
28 ms |
8020 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
1 ms |
2812 KB |
Output isn't correct |
| 2 |
Incorrect |
1 ms |
2664 KB |
Output isn't correct |
| 3 |
Correct |
24 ms |
7904 KB |
Output is correct |
| 4 |
Correct |
25 ms |
7800 KB |
Output is correct |
| 5 |
Correct |
25 ms |
8028 KB |
Output is correct |
| 6 |
Correct |
106 ms |
23228 KB |
Output is correct |
| 7 |
Incorrect |
1 ms |
2648 KB |
Output isn't correct |
| 8 |
Incorrect |
1 ms |
2652 KB |
Output isn't correct |
| 9 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2808 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 13 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 14 |
Incorrect |
1 ms |
2652 KB |
Output isn't correct |
| 15 |
Incorrect |
1 ms |
2652 KB |
Output isn't correct |
| 16 |
Incorrect |
1 ms |
2652 KB |
Output isn't correct |
| 17 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 18 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2648 KB |
Output is correct |
| 20 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 21 |
Correct |
1 ms |
2820 KB |
Output is correct |
| 22 |
Incorrect |
1 ms |
2652 KB |
Output isn't correct |
| 23 |
Incorrect |
20 ms |
7096 KB |
Output isn't correct |
| 24 |
Incorrect |
26 ms |
8024 KB |
Output isn't correct |
| 25 |
Correct |
24 ms |
7920 KB |
Output is correct |
| 26 |
Correct |
25 ms |
8016 KB |
Output is correct |
| 27 |
Correct |
25 ms |
7760 KB |
Output is correct |
| 28 |
Correct |
26 ms |
8276 KB |
Output is correct |
| 29 |
Correct |
79 ms |
19280 KB |
Output is correct |
| 30 |
Incorrect |
24 ms |
7772 KB |
Output isn't correct |
| 31 |
Incorrect |
26 ms |
7884 KB |
Output isn't correct |
| 32 |
Incorrect |
26 ms |
8276 KB |
Output isn't correct |
| 33 |
Correct |
25 ms |
8020 KB |
Output is correct |
| 34 |
Correct |
27 ms |
8028 KB |
Output is correct |
| 35 |
Correct |
25 ms |
8028 KB |
Output is correct |
| 36 |
Correct |
26 ms |
8328 KB |
Output is correct |
| 37 |
Correct |
99 ms |
23644 KB |
Output is correct |
| 38 |
Incorrect |
25 ms |
8016 KB |
Output isn't correct |
| 39 |
Incorrect |
26 ms |
8224 KB |
Output isn't correct |
| 40 |
Incorrect |
26 ms |
7972 KB |
Output isn't correct |
| 41 |
Correct |
25 ms |
7796 KB |
Output is correct |
| 42 |
Correct |
26 ms |
7764 KB |
Output is correct |
| 43 |
Correct |
26 ms |
7808 KB |
Output is correct |
| 44 |
Correct |
27 ms |
8024 KB |
Output is correct |
| 45 |
Correct |
81 ms |
20560 KB |
Output is correct |
| 46 |
Incorrect |
25 ms |
7764 KB |
Output isn't correct |
| 47 |
Incorrect |
26 ms |
8028 KB |
Output isn't correct |
| 48 |
Incorrect |
29 ms |
7888 KB |
Output isn't correct |
| 49 |
Correct |
24 ms |
8028 KB |
Output is correct |
| 50 |
Correct |
26 ms |
8028 KB |
Output is correct |
| 51 |
Correct |
25 ms |
8028 KB |
Output is correct |
| 52 |
Correct |
25 ms |
7760 KB |
Output is correct |
| 53 |
Correct |
83 ms |
20552 KB |
Output is correct |
| 54 |
Incorrect |
25 ms |
7804 KB |
Output isn't correct |
