#include <bits/stdc++.h>
using namespace std;
const int MN = 1e5+5;
int n, k, i, arr[MN], u, v, ans, w[MN];
vector<int> vec[MN], adj[MN];
void dfs(int u,int p){
for(auto v : adj[u]){
if(v == p) continue;
dfs(v, u);
vec[u].push_back(w[v]);
}
w[u] = arr[u];
if(vec[u].size()){
sort(vec[u].begin() ,vec[u].end());
for(i = 0; i < vec[u].size() && w[u] + vec[u][i] <= k;i++) w[u] += vec[u][i];
ans += vec[u].size() - i;
}
}
int main(){
cin >> n >> k;
for(int i = 1; i < n + 1; i++) cin >> arr[i];
for(i = 1; i < n; i++){
cin >> u >> v;
adj[u].push_back(v);
adj[v].push_back(u);
}
dfs(1, 0);
cout << ans << '\n';
}
Compilation message
paprike.cpp: In function 'void dfs(int, int)':
paprike.cpp:17:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
17 | for(i = 0; i < vec[u].size() && w[u] + vec[u][i] <= k;i++) w[u] += vec[u][i];
| ~~^~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 2 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 3 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 4 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 5 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 6 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 7 |
Correct |
4 ms |
4948 KB |
Output is correct |
| 8 |
Correct |
2 ms |
5012 KB |
Output is correct |
| 9 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 10 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 11 |
Correct |
2 ms |
5008 KB |
Output is correct |
| 12 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 13 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 14 |
Correct |
2 ms |
5000 KB |
Output is correct |
| 15 |
Correct |
2 ms |
4928 KB |
Output is correct |
| 16 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 17 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 18 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 19 |
Correct |
2 ms |
5008 KB |
Output is correct |
| 20 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 21 |
Correct |
2 ms |
4948 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
87 ms |
23376 KB |
Output is correct |
| 2 |
Correct |
89 ms |
23488 KB |
Output is correct |
| 3 |
Correct |
85 ms |
23296 KB |
Output is correct |
| 4 |
Correct |
84 ms |
23396 KB |
Output is correct |
| 5 |
Correct |
86 ms |
23260 KB |
Output is correct |
| 6 |
Correct |
83 ms |
23280 KB |
Output is correct |
| 7 |
Correct |
82 ms |
23220 KB |
Output is correct |
| 8 |
Correct |
73 ms |
22744 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 2 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 3 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 4 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 5 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 6 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 7 |
Correct |
4 ms |
4948 KB |
Output is correct |
| 8 |
Correct |
2 ms |
5012 KB |
Output is correct |
| 9 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 10 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 11 |
Correct |
2 ms |
5008 KB |
Output is correct |
| 12 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 13 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 14 |
Correct |
2 ms |
5000 KB |
Output is correct |
| 15 |
Correct |
2 ms |
4928 KB |
Output is correct |
| 16 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 17 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 18 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 19 |
Correct |
2 ms |
5008 KB |
Output is correct |
| 20 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 21 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 22 |
Correct |
3 ms |
5076 KB |
Output is correct |
| 23 |
Correct |
3 ms |
5076 KB |
Output is correct |
| 24 |
Correct |
3 ms |
5076 KB |
Output is correct |
| 25 |
Correct |
3 ms |
5076 KB |
Output is correct |
| 26 |
Correct |
3 ms |
5020 KB |
Output is correct |
| 27 |
Correct |
3 ms |
5076 KB |
Output is correct |
| 28 |
Correct |
3 ms |
5076 KB |
Output is correct |
| 29 |
Correct |
3 ms |
5076 KB |
Output is correct |
| 30 |
Correct |
3 ms |
5076 KB |
Output is correct |
| 31 |
Correct |
3 ms |
5076 KB |
Output is correct |
| 32 |
Correct |
3 ms |
5020 KB |
Output is correct |
| 33 |
Correct |
3 ms |
5076 KB |
Output is correct |
| 34 |
Correct |
3 ms |
5016 KB |
Output is correct |
| 35 |
Correct |
3 ms |
5076 KB |
Output is correct |
| 36 |
Correct |
3 ms |
5016 KB |
Output is correct |
| 37 |
Correct |
5 ms |
5076 KB |
Output is correct |
| 38 |
Correct |
4 ms |
5076 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 2 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 3 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 4 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 5 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 6 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 7 |
Correct |
4 ms |
4948 KB |
Output is correct |
| 8 |
Correct |
2 ms |
5012 KB |
Output is correct |
| 9 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 10 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 11 |
Correct |
2 ms |
5008 KB |
Output is correct |
| 12 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 13 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 14 |
Correct |
2 ms |
5000 KB |
Output is correct |
| 15 |
Correct |
2 ms |
4928 KB |
Output is correct |
| 16 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 17 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 18 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 19 |
Correct |
2 ms |
5008 KB |
Output is correct |
| 20 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 21 |
Correct |
2 ms |
4948 KB |
Output is correct |
| 22 |
Correct |
87 ms |
23376 KB |
Output is correct |
| 23 |
Correct |
89 ms |
23488 KB |
Output is correct |
| 24 |
Correct |
85 ms |
23296 KB |
Output is correct |
| 25 |
Correct |
84 ms |
23396 KB |
Output is correct |
| 26 |
Correct |
86 ms |
23260 KB |
Output is correct |
| 27 |
Correct |
83 ms |
23280 KB |
Output is correct |
| 28 |
Correct |
82 ms |
23220 KB |
Output is correct |
| 29 |
Correct |
73 ms |
22744 KB |
Output is correct |
| 30 |
Correct |
3 ms |
5076 KB |
Output is correct |
| 31 |
Correct |
3 ms |
5076 KB |
Output is correct |
| 32 |
Correct |
3 ms |
5076 KB |
Output is correct |
| 33 |
Correct |
3 ms |
5076 KB |
Output is correct |
| 34 |
Correct |
3 ms |
5020 KB |
Output is correct |
| 35 |
Correct |
3 ms |
5076 KB |
Output is correct |
| 36 |
Correct |
3 ms |
5076 KB |
Output is correct |
| 37 |
Correct |
3 ms |
5076 KB |
Output is correct |
| 38 |
Correct |
3 ms |
5076 KB |
Output is correct |
| 39 |
Correct |
3 ms |
5076 KB |
Output is correct |
| 40 |
Correct |
3 ms |
5020 KB |
Output is correct |
| 41 |
Correct |
3 ms |
5076 KB |
Output is correct |
| 42 |
Correct |
3 ms |
5016 KB |
Output is correct |
| 43 |
Correct |
3 ms |
5076 KB |
Output is correct |
| 44 |
Correct |
3 ms |
5016 KB |
Output is correct |
| 45 |
Correct |
5 ms |
5076 KB |
Output is correct |
| 46 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 47 |
Correct |
92 ms |
16024 KB |
Output is correct |
| 48 |
Correct |
81 ms |
14664 KB |
Output is correct |
| 49 |
Correct |
81 ms |
14112 KB |
Output is correct |
| 50 |
Correct |
81 ms |
13808 KB |
Output is correct |
| 51 |
Correct |
84 ms |
12516 KB |
Output is correct |
| 52 |
Correct |
86 ms |
12568 KB |
Output is correct |
| 53 |
Correct |
86 ms |
12444 KB |
Output is correct |
| 54 |
Correct |
85 ms |
12412 KB |
Output is correct |
| 55 |
Correct |
72 ms |
11980 KB |
Output is correct |
| 56 |
Correct |
72 ms |
11980 KB |
Output is correct |
| 57 |
Correct |
65 ms |
11508 KB |
Output is correct |
