#include <bits/stdc++.h>
using namespace std;
const int mxN=1e5;
int n, k, ans;
long long h[mxN];
vector<int> adj[mxN];
void dfs(int u=0, int p=-1) {
if(~p)
adj[u].erase(find(adj[u].begin(), adj[u].end(), p));
for(int v : adj[u]) {
dfs(v, u);
h[u]+=h[v];
}
sort(adj[u].begin(), adj[u].end(), [](const int &i, const int &j) {
return h[i]>h[j];
});
for(int i=0; i<adj[u].size()&&h[u]>k; ++i, ++ans)
h[u]-=h[adj[u][i]];
}
int main() {
ios::sync_with_stdio(0);
cin.tie(0);
cin >> n >> k;
for(int i=0; i<n; ++i)
cin >> h[i];
for(int i=1, u, v; i<n; ++i) {
cin >> u >> v, --u, --v;
adj[u].push_back(v);
adj[v].push_back(u);
}
dfs();
cout << ans;
}
Compilation message
paprike.cpp: In function 'void dfs(int, int)':
paprike.cpp:19:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=0; i<adj[u].size()&&h[u]>k; ++i, ++ans)
~^~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 2 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 3 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 4 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 5 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 6 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 7 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 8 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 9 |
Correct |
4 ms |
2808 KB |
Output is correct |
| 10 |
Correct |
5 ms |
2680 KB |
Output is correct |
| 11 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 12 |
Correct |
5 ms |
2680 KB |
Output is correct |
| 13 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 14 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 15 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 16 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 17 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 18 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 19 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 20 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2680 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
61 ms |
16376 KB |
Output is correct |
| 2 |
Correct |
60 ms |
16376 KB |
Output is correct |
| 3 |
Correct |
60 ms |
16504 KB |
Output is correct |
| 4 |
Correct |
66 ms |
16348 KB |
Output is correct |
| 5 |
Correct |
59 ms |
16288 KB |
Output is correct |
| 6 |
Correct |
59 ms |
16504 KB |
Output is correct |
| 7 |
Correct |
59 ms |
16280 KB |
Output is correct |
| 8 |
Correct |
54 ms |
15864 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 2 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 3 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 4 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 5 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 6 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 7 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 8 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 9 |
Correct |
4 ms |
2808 KB |
Output is correct |
| 10 |
Correct |
5 ms |
2680 KB |
Output is correct |
| 11 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 12 |
Correct |
5 ms |
2680 KB |
Output is correct |
| 13 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 14 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 15 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 16 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 17 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 18 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 19 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 20 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 22 |
Correct |
4 ms |
2808 KB |
Output is correct |
| 23 |
Correct |
4 ms |
2808 KB |
Output is correct |
| 24 |
Correct |
4 ms |
2808 KB |
Output is correct |
| 25 |
Correct |
5 ms |
2808 KB |
Output is correct |
| 26 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 27 |
Correct |
5 ms |
2680 KB |
Output is correct |
| 28 |
Correct |
5 ms |
2780 KB |
Output is correct |
| 29 |
Correct |
4 ms |
2808 KB |
Output is correct |
| 30 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 31 |
Correct |
4 ms |
2808 KB |
Output is correct |
| 32 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 33 |
Correct |
4 ms |
2808 KB |
Output is correct |
| 34 |
Correct |
4 ms |
2808 KB |
Output is correct |
| 35 |
Correct |
4 ms |
2808 KB |
Output is correct |
| 36 |
Correct |
4 ms |
2936 KB |
Output is correct |
| 37 |
Correct |
4 ms |
2808 KB |
Output is correct |
| 38 |
Correct |
4 ms |
2808 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 2 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 3 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 4 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 5 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 6 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 7 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 8 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 9 |
Correct |
4 ms |
2808 KB |
Output is correct |
| 10 |
Correct |
5 ms |
2680 KB |
Output is correct |
| 11 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 12 |
Correct |
5 ms |
2680 KB |
Output is correct |
| 13 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 14 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 15 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 16 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 17 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 18 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 19 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 20 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 22 |
Correct |
61 ms |
16376 KB |
Output is correct |
| 23 |
Correct |
60 ms |
16376 KB |
Output is correct |
| 24 |
Correct |
60 ms |
16504 KB |
Output is correct |
| 25 |
Correct |
66 ms |
16348 KB |
Output is correct |
| 26 |
Correct |
59 ms |
16288 KB |
Output is correct |
| 27 |
Correct |
59 ms |
16504 KB |
Output is correct |
| 28 |
Correct |
59 ms |
16280 KB |
Output is correct |
| 29 |
Correct |
54 ms |
15864 KB |
Output is correct |
| 30 |
Correct |
4 ms |
2808 KB |
Output is correct |
| 31 |
Correct |
4 ms |
2808 KB |
Output is correct |
| 32 |
Correct |
4 ms |
2808 KB |
Output is correct |
| 33 |
Correct |
5 ms |
2808 KB |
Output is correct |
| 34 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 35 |
Correct |
5 ms |
2680 KB |
Output is correct |
| 36 |
Correct |
5 ms |
2780 KB |
Output is correct |
| 37 |
Correct |
4 ms |
2808 KB |
Output is correct |
| 38 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 39 |
Correct |
4 ms |
2808 KB |
Output is correct |
| 40 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 41 |
Correct |
4 ms |
2808 KB |
Output is correct |
| 42 |
Correct |
4 ms |
2808 KB |
Output is correct |
| 43 |
Correct |
4 ms |
2808 KB |
Output is correct |
| 44 |
Correct |
4 ms |
2936 KB |
Output is correct |
| 45 |
Correct |
4 ms |
2808 KB |
Output is correct |
| 46 |
Correct |
4 ms |
2808 KB |
Output is correct |
| 47 |
Correct |
57 ms |
11200 KB |
Output is correct |
| 48 |
Correct |
58 ms |
10052 KB |
Output is correct |
| 49 |
Correct |
59 ms |
9580 KB |
Output is correct |
| 50 |
Correct |
61 ms |
9464 KB |
Output is correct |
| 51 |
Correct |
62 ms |
8668 KB |
Output is correct |
| 52 |
Correct |
64 ms |
8696 KB |
Output is correct |
| 53 |
Correct |
63 ms |
8540 KB |
Output is correct |
| 54 |
Correct |
63 ms |
8568 KB |
Output is correct |
| 55 |
Correct |
59 ms |
8184 KB |
Output is correct |
| 56 |
Correct |
58 ms |
8184 KB |
Output is correct |
| 57 |
Correct |
46 ms |
8688 KB |
Output is correct |
