#include <bits/stdc++.h>
using namespace std;
long long n, k, h[100005], a, b, rez, ans;
vector<long long> c[100005];
vector<long long> l[100005];
long long lj[100005];
void dfs(int idx, int prev){
if (lj[idx]) return;
lj[idx]=h[idx];
for (int i=0; i<c[idx].size(); i++){
if (c[idx][i]==prev) continue;
dfs(c[idx][i], idx);
l[idx].push_back(lj[c[idx][i]]);
}
sort(l[idx].begin(), l[idx].end());
reverse(l[idx].begin(), l[idx].end());
for (int i=0; i<l[idx].size(); i++)
lj[idx]+=l[idx][i];
for (int i=0; lj[idx]>k; i++){
lj[idx]-=l[idx][i];
rez++;
}
return;
}
int main (){
ios::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
cin >> n >> k;
for (int i=1; i<=n; i++)
cin >> h[i];
for (int i=1; i<n; i++){
cin >> a >> b;
c[a].push_back(b);
c[b].push_back(a);
}
dfs(1, -1);
cout << rez;
return 0;
}
Compilation message
paprike.cpp: In function 'void dfs(int, int)':
paprike.cpp:10:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i=0; i<c[idx].size(); i++){
~^~~~~~~~~~~~~~
paprike.cpp:17:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i=0; i<l[idx].size(); i++)
~^~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 2 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 3 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 4 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 5 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 6 |
Correct |
7 ms |
5112 KB |
Output is correct |
| 7 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 8 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 9 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 10 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 11 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 12 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 13 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 14 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 15 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 16 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 17 |
Correct |
7 ms |
4988 KB |
Output is correct |
| 18 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 19 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 20 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 21 |
Correct |
7 ms |
5112 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
66 ms |
22648 KB |
Output is correct |
| 2 |
Correct |
67 ms |
22648 KB |
Output is correct |
| 3 |
Correct |
66 ms |
22648 KB |
Output is correct |
| 4 |
Correct |
65 ms |
22648 KB |
Output is correct |
| 5 |
Correct |
66 ms |
22648 KB |
Output is correct |
| 6 |
Correct |
65 ms |
22648 KB |
Output is correct |
| 7 |
Correct |
67 ms |
22648 KB |
Output is correct |
| 8 |
Correct |
68 ms |
22140 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 2 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 3 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 4 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 5 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 6 |
Correct |
7 ms |
5112 KB |
Output is correct |
| 7 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 8 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 9 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 10 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 11 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 12 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 13 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 14 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 15 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 16 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 17 |
Correct |
7 ms |
4988 KB |
Output is correct |
| 18 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 19 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 20 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 21 |
Correct |
7 ms |
5112 KB |
Output is correct |
| 22 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 23 |
Correct |
9 ms |
5112 KB |
Output is correct |
| 24 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 25 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 26 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 27 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 28 |
Correct |
9 ms |
5112 KB |
Output is correct |
| 29 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 30 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 31 |
Correct |
9 ms |
5112 KB |
Output is correct |
| 32 |
Correct |
9 ms |
5160 KB |
Output is correct |
| 33 |
Correct |
8 ms |
5124 KB |
Output is correct |
| 34 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 35 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 36 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 37 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 38 |
Correct |
8 ms |
5112 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 2 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 3 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 4 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 5 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 6 |
Correct |
7 ms |
5112 KB |
Output is correct |
| 7 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 8 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 9 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 10 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 11 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 12 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 13 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 14 |
Correct |
8 ms |
4984 KB |
Output is correct |
| 15 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 16 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 17 |
Correct |
7 ms |
4988 KB |
Output is correct |
| 18 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 19 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 20 |
Correct |
7 ms |
4984 KB |
Output is correct |
| 21 |
Correct |
7 ms |
5112 KB |
Output is correct |
| 22 |
Correct |
66 ms |
22648 KB |
Output is correct |
| 23 |
Correct |
67 ms |
22648 KB |
Output is correct |
| 24 |
Correct |
66 ms |
22648 KB |
Output is correct |
| 25 |
Correct |
65 ms |
22648 KB |
Output is correct |
| 26 |
Correct |
66 ms |
22648 KB |
Output is correct |
| 27 |
Correct |
65 ms |
22648 KB |
Output is correct |
| 28 |
Correct |
67 ms |
22648 KB |
Output is correct |
| 29 |
Correct |
68 ms |
22140 KB |
Output is correct |
| 30 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 31 |
Correct |
9 ms |
5112 KB |
Output is correct |
| 32 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 33 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 34 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 35 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 36 |
Correct |
9 ms |
5112 KB |
Output is correct |
| 37 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 38 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 39 |
Correct |
9 ms |
5112 KB |
Output is correct |
| 40 |
Correct |
9 ms |
5160 KB |
Output is correct |
| 41 |
Correct |
8 ms |
5124 KB |
Output is correct |
| 42 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 43 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 44 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 45 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 46 |
Correct |
8 ms |
5112 KB |
Output is correct |
| 47 |
Correct |
67 ms |
16888 KB |
Output is correct |
| 48 |
Correct |
79 ms |
15796 KB |
Output is correct |
| 49 |
Correct |
69 ms |
15356 KB |
Output is correct |
| 50 |
Correct |
70 ms |
15224 KB |
Output is correct |
| 51 |
Correct |
92 ms |
14328 KB |
Output is correct |
| 52 |
Correct |
93 ms |
14200 KB |
Output is correct |
| 53 |
Correct |
83 ms |
14072 KB |
Output is correct |
| 54 |
Correct |
87 ms |
14072 KB |
Output is correct |
| 55 |
Correct |
88 ms |
13560 KB |
Output is correct |
| 56 |
Correct |
83 ms |
13560 KB |
Output is correct |
| 57 |
Correct |
49 ms |
13376 KB |
Output is correct |
