#include <iostream>
#include <bits/stdc++.h>
using namespace std;
typedef long long int llo ;
#define mp make_pair
#define pb push_back
#define a first
#define b second
vector<llo> adj[100001];
llo it[100001];
llo vis[100001];
pair<llo,llo> dp[100001];
llo ans;
vector<llo> stac;
llo n,k;
void dfs(llo no){
llo co=it[no];
dp[no]=mp(1,co);
vector<pair<llo,llo>> aa;
for(llo j=0;j<adj[no].size();j++){
llo nn=adj[no][j];
if(vis[nn]==0){
vis[nn]=1;
dfs(nn);
aa.pb(mp(dp[nn].b,dp[nn].a));
}
}
sort(aa.begin(),aa.end());
llo st=0;
for(llo i=0;i<aa.size();i++){
if(co+aa[i].a<=k and st==0){
co+=aa[i].a;
dp[no].a+=aa[i].b-1;
}
else{
st=1;
dp[no].a+=aa[i].b;
}
}
dp[no].b=co;
}
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cin>>n>>k;
memset(vis,0,sizeof(vis));
for(llo i=0;i<n;i++){
cin>>it[i];
}
llo aa,bb;
for(llo i=0;i<n-1;i++){
cin>>aa>>bb;
adj[aa-1].pb(bb-1);
adj[bb-1].pb(aa-1);
}
vis[0]=1;
dfs(0);
cout<<dp[0].a-1<<endl;
return 0;
}
Compilation message
paprike.cpp: In function 'void dfs(llo)':
paprike.cpp:22:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(llo j=0;j<adj[no].size();j++){
~^~~~~~~~~~~~~~~
paprike.cpp:32:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(llo i=0;i<aa.size();i++){
~^~~~~~~~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 2 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 3 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 4 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 5 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 6 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 7 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 8 |
Correct |
8 ms |
3448 KB |
Output is correct |
| 9 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 10 |
Correct |
6 ms |
3448 KB |
Output is correct |
| 11 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 12 |
Correct |
6 ms |
3448 KB |
Output is correct |
| 13 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 14 |
Correct |
6 ms |
3448 KB |
Output is correct |
| 15 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 16 |
Correct |
7 ms |
3576 KB |
Output is correct |
| 17 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 18 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 19 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 20 |
Correct |
8 ms |
3448 KB |
Output is correct |
| 21 |
Correct |
7 ms |
3448 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
71 ms |
18328 KB |
Output is correct |
| 2 |
Correct |
68 ms |
18296 KB |
Output is correct |
| 3 |
Correct |
68 ms |
18284 KB |
Output is correct |
| 4 |
Correct |
68 ms |
18296 KB |
Output is correct |
| 5 |
Correct |
72 ms |
18296 KB |
Output is correct |
| 6 |
Correct |
67 ms |
18296 KB |
Output is correct |
| 7 |
Correct |
68 ms |
18296 KB |
Output is correct |
| 8 |
Correct |
67 ms |
18296 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 2 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 3 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 4 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 5 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 6 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 7 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 8 |
Correct |
8 ms |
3448 KB |
Output is correct |
| 9 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 10 |
Correct |
6 ms |
3448 KB |
Output is correct |
| 11 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 12 |
Correct |
6 ms |
3448 KB |
Output is correct |
| 13 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 14 |
Correct |
6 ms |
3448 KB |
Output is correct |
| 15 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 16 |
Correct |
7 ms |
3576 KB |
Output is correct |
| 17 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 18 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 19 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 20 |
Correct |
8 ms |
3448 KB |
Output is correct |
| 21 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 22 |
Correct |
7 ms |
3576 KB |
Output is correct |
| 23 |
Correct |
8 ms |
3576 KB |
Output is correct |
| 24 |
Correct |
8 ms |
3576 KB |
Output is correct |
| 25 |
Correct |
7 ms |
3576 KB |
Output is correct |
| 26 |
Correct |
8 ms |
3576 KB |
Output is correct |
| 27 |
Correct |
7 ms |
3576 KB |
Output is correct |
| 28 |
Correct |
8 ms |
3576 KB |
Output is correct |
| 29 |
Correct |
9 ms |
3576 KB |
Output is correct |
| 30 |
Correct |
8 ms |
3576 KB |
Output is correct |
| 31 |
Correct |
7 ms |
3576 KB |
Output is correct |
| 32 |
Correct |
7 ms |
3576 KB |
Output is correct |
| 33 |
Correct |
8 ms |
3576 KB |
Output is correct |
| 34 |
Correct |
8 ms |
3576 KB |
Output is correct |
| 35 |
Correct |
8 ms |
3576 KB |
Output is correct |
| 36 |
Correct |
10 ms |
3576 KB |
Output is correct |
| 37 |
Correct |
8 ms |
3576 KB |
Output is correct |
| 38 |
Correct |
8 ms |
3576 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 2 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 3 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 4 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 5 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 6 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 7 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 8 |
Correct |
8 ms |
3448 KB |
Output is correct |
| 9 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 10 |
Correct |
6 ms |
3448 KB |
Output is correct |
| 11 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 12 |
Correct |
6 ms |
3448 KB |
Output is correct |
| 13 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 14 |
Correct |
6 ms |
3448 KB |
Output is correct |
| 15 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 16 |
Correct |
7 ms |
3576 KB |
Output is correct |
| 17 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 18 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 19 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 20 |
Correct |
8 ms |
3448 KB |
Output is correct |
| 21 |
Correct |
7 ms |
3448 KB |
Output is correct |
| 22 |
Correct |
71 ms |
18328 KB |
Output is correct |
| 23 |
Correct |
68 ms |
18296 KB |
Output is correct |
| 24 |
Correct |
68 ms |
18284 KB |
Output is correct |
| 25 |
Correct |
68 ms |
18296 KB |
Output is correct |
| 26 |
Correct |
72 ms |
18296 KB |
Output is correct |
| 27 |
Correct |
67 ms |
18296 KB |
Output is correct |
| 28 |
Correct |
68 ms |
18296 KB |
Output is correct |
| 29 |
Correct |
67 ms |
18296 KB |
Output is correct |
| 30 |
Correct |
7 ms |
3576 KB |
Output is correct |
| 31 |
Correct |
8 ms |
3576 KB |
Output is correct |
| 32 |
Correct |
8 ms |
3576 KB |
Output is correct |
| 33 |
Correct |
7 ms |
3576 KB |
Output is correct |
| 34 |
Correct |
8 ms |
3576 KB |
Output is correct |
| 35 |
Correct |
7 ms |
3576 KB |
Output is correct |
| 36 |
Correct |
8 ms |
3576 KB |
Output is correct |
| 37 |
Correct |
9 ms |
3576 KB |
Output is correct |
| 38 |
Correct |
8 ms |
3576 KB |
Output is correct |
| 39 |
Correct |
7 ms |
3576 KB |
Output is correct |
| 40 |
Correct |
7 ms |
3576 KB |
Output is correct |
| 41 |
Correct |
8 ms |
3576 KB |
Output is correct |
| 42 |
Correct |
8 ms |
3576 KB |
Output is correct |
| 43 |
Correct |
8 ms |
3576 KB |
Output is correct |
| 44 |
Correct |
10 ms |
3576 KB |
Output is correct |
| 45 |
Correct |
8 ms |
3576 KB |
Output is correct |
| 46 |
Correct |
8 ms |
3576 KB |
Output is correct |
| 47 |
Correct |
69 ms |
14840 KB |
Output is correct |
| 48 |
Correct |
69 ms |
13304 KB |
Output is correct |
| 49 |
Correct |
77 ms |
12792 KB |
Output is correct |
| 50 |
Correct |
74 ms |
12408 KB |
Output is correct |
| 51 |
Correct |
105 ms |
11640 KB |
Output is correct |
| 52 |
Correct |
103 ms |
11640 KB |
Output is correct |
| 53 |
Correct |
107 ms |
11512 KB |
Output is correct |
| 54 |
Correct |
105 ms |
11512 KB |
Output is correct |
| 55 |
Correct |
109 ms |
11000 KB |
Output is correct |
| 56 |
Correct |
95 ms |
11000 KB |
Output is correct |
| 57 |
Correct |
52 ms |
13156 KB |
Output is correct |
