#include <bits/stdc++.h>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
typedef long long ll;
using namespace std;
ll n,k,i,a[101010],ta,tb,has,bes[101010];
vector<ll> v[101010];
void dfs(ll aa,ll bb)
{
bes[aa]=a[aa];
vector<ll> tem;
ll ii;
for(ii=0;ii<v[aa].size();ii++)
{
if(v[aa][ii]==bb)continue;
dfs(v[aa][ii],aa);
tem.pb(bes[v[aa][ii]]);
}
sort(tem.begin(),tem.end());
for(ii=0;ii<tem.size();ii++)
if(bes[aa]+tem[ii]<=k)
bes[aa]+=tem[ii];
else
has++;
}
int main()
{
ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
cin>>n>>k;
for(i=1;i<=n;i++)cin>>a[i];
for(i=1;i<n;i++)
{
cin>>ta>>tb;
v[ta].pb(tb);
v[tb].pb(ta);
}
dfs(1,1);
cout<<has<<"\n";
}
Compilation message
paprike.cpp: In function 'void dfs(ll, ll)':
paprike.cpp:15:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(ii=0;ii<v[aa].size();ii++)
~~^~~~~~~~~~~~~
paprike.cpp:22:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(ii=0;ii<tem.size();ii++)
~~^~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
2688 KB |
Output is correct |
| 2 |
Correct |
5 ms |
2688 KB |
Output is correct |
| 3 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 4 |
Correct |
5 ms |
2760 KB |
Output is correct |
| 5 |
Correct |
4 ms |
2688 KB |
Output is correct |
| 6 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 7 |
Correct |
5 ms |
2688 KB |
Output is correct |
| 8 |
Correct |
4 ms |
2688 KB |
Output is correct |
| 9 |
Correct |
4 ms |
2688 KB |
Output is correct |
| 10 |
Correct |
4 ms |
2688 KB |
Output is correct |
| 11 |
Correct |
5 ms |
2688 KB |
Output is correct |
| 12 |
Correct |
5 ms |
2688 KB |
Output is correct |
| 13 |
Correct |
4 ms |
2688 KB |
Output is correct |
| 14 |
Correct |
4 ms |
2688 KB |
Output is correct |
| 15 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 16 |
Correct |
5 ms |
2688 KB |
Output is correct |
| 17 |
Correct |
5 ms |
2688 KB |
Output is correct |
| 18 |
Correct |
5 ms |
2816 KB |
Output is correct |
| 19 |
Correct |
4 ms |
2816 KB |
Output is correct |
| 20 |
Correct |
5 ms |
2688 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2688 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
64 ms |
17400 KB |
Output is correct |
| 2 |
Correct |
67 ms |
17240 KB |
Output is correct |
| 3 |
Correct |
60 ms |
17272 KB |
Output is correct |
| 4 |
Correct |
67 ms |
17484 KB |
Output is correct |
| 5 |
Correct |
78 ms |
17272 KB |
Output is correct |
| 6 |
Correct |
71 ms |
17256 KB |
Output is correct |
| 7 |
Correct |
102 ms |
17144 KB |
Output is correct |
| 8 |
Correct |
77 ms |
16888 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
2688 KB |
Output is correct |
| 2 |
Correct |
5 ms |
2688 KB |
Output is correct |
| 3 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 4 |
Correct |
5 ms |
2760 KB |
Output is correct |
| 5 |
Correct |
4 ms |
2688 KB |
Output is correct |
| 6 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 7 |
Correct |
5 ms |
2688 KB |
Output is correct |
| 8 |
Correct |
4 ms |
2688 KB |
Output is correct |
| 9 |
Correct |
4 ms |
2688 KB |
Output is correct |
| 10 |
Correct |
4 ms |
2688 KB |
Output is correct |
| 11 |
Correct |
5 ms |
2688 KB |
Output is correct |
| 12 |
Correct |
5 ms |
2688 KB |
Output is correct |
| 13 |
Correct |
4 ms |
2688 KB |
Output is correct |
| 14 |
Correct |
4 ms |
2688 KB |
Output is correct |
| 15 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 16 |
Correct |
5 ms |
2688 KB |
Output is correct |
| 17 |
Correct |
5 ms |
2688 KB |
Output is correct |
| 18 |
Correct |
5 ms |
2816 KB |
Output is correct |
| 19 |
Correct |
4 ms |
2816 KB |
Output is correct |
| 20 |
Correct |
5 ms |
2688 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2688 KB |
Output is correct |
| 22 |
Correct |
5 ms |
2816 KB |
Output is correct |
| 23 |
Correct |
5 ms |
2816 KB |
Output is correct |
| 24 |
Correct |
6 ms |
2816 KB |
Output is correct |
| 25 |
Correct |
6 ms |
2816 KB |
Output is correct |
| 26 |
Correct |
6 ms |
2936 KB |
Output is correct |
| 27 |
Correct |
5 ms |
2816 KB |
Output is correct |
| 28 |
Correct |
5 ms |
2816 KB |
Output is correct |
| 29 |
Correct |
6 ms |
2816 KB |
Output is correct |
| 30 |
Correct |
6 ms |
2864 KB |
Output is correct |
| 31 |
Correct |
6 ms |
2816 KB |
Output is correct |
| 32 |
Correct |
5 ms |
2816 KB |
Output is correct |
| 33 |
Correct |
5 ms |
2816 KB |
Output is correct |
| 34 |
Correct |
5 ms |
2816 KB |
Output is correct |
| 35 |
Correct |
6 ms |
2816 KB |
Output is correct |
| 36 |
Correct |
6 ms |
2900 KB |
Output is correct |
| 37 |
Correct |
5 ms |
2816 KB |
Output is correct |
| 38 |
Correct |
6 ms |
2816 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
2688 KB |
Output is correct |
| 2 |
Correct |
5 ms |
2688 KB |
Output is correct |
| 3 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 4 |
Correct |
5 ms |
2760 KB |
Output is correct |
| 5 |
Correct |
4 ms |
2688 KB |
Output is correct |
| 6 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 7 |
Correct |
5 ms |
2688 KB |
Output is correct |
| 8 |
Correct |
4 ms |
2688 KB |
Output is correct |
| 9 |
Correct |
4 ms |
2688 KB |
Output is correct |
| 10 |
Correct |
4 ms |
2688 KB |
Output is correct |
| 11 |
Correct |
5 ms |
2688 KB |
Output is correct |
| 12 |
Correct |
5 ms |
2688 KB |
Output is correct |
| 13 |
Correct |
4 ms |
2688 KB |
Output is correct |
| 14 |
Correct |
4 ms |
2688 KB |
Output is correct |
| 15 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 16 |
Correct |
5 ms |
2688 KB |
Output is correct |
| 17 |
Correct |
5 ms |
2688 KB |
Output is correct |
| 18 |
Correct |
5 ms |
2816 KB |
Output is correct |
| 19 |
Correct |
4 ms |
2816 KB |
Output is correct |
| 20 |
Correct |
5 ms |
2688 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2688 KB |
Output is correct |
| 22 |
Correct |
64 ms |
17400 KB |
Output is correct |
| 23 |
Correct |
67 ms |
17240 KB |
Output is correct |
| 24 |
Correct |
60 ms |
17272 KB |
Output is correct |
| 25 |
Correct |
67 ms |
17484 KB |
Output is correct |
| 26 |
Correct |
78 ms |
17272 KB |
Output is correct |
| 27 |
Correct |
71 ms |
17256 KB |
Output is correct |
| 28 |
Correct |
102 ms |
17144 KB |
Output is correct |
| 29 |
Correct |
77 ms |
16888 KB |
Output is correct |
| 30 |
Correct |
5 ms |
2816 KB |
Output is correct |
| 31 |
Correct |
5 ms |
2816 KB |
Output is correct |
| 32 |
Correct |
6 ms |
2816 KB |
Output is correct |
| 33 |
Correct |
6 ms |
2816 KB |
Output is correct |
| 34 |
Correct |
6 ms |
2936 KB |
Output is correct |
| 35 |
Correct |
5 ms |
2816 KB |
Output is correct |
| 36 |
Correct |
5 ms |
2816 KB |
Output is correct |
| 37 |
Correct |
6 ms |
2816 KB |
Output is correct |
| 38 |
Correct |
6 ms |
2864 KB |
Output is correct |
| 39 |
Correct |
6 ms |
2816 KB |
Output is correct |
| 40 |
Correct |
5 ms |
2816 KB |
Output is correct |
| 41 |
Correct |
5 ms |
2816 KB |
Output is correct |
| 42 |
Correct |
5 ms |
2816 KB |
Output is correct |
| 43 |
Correct |
6 ms |
2816 KB |
Output is correct |
| 44 |
Correct |
6 ms |
2900 KB |
Output is correct |
| 45 |
Correct |
5 ms |
2816 KB |
Output is correct |
| 46 |
Correct |
6 ms |
2816 KB |
Output is correct |
| 47 |
Correct |
69 ms |
12800 KB |
Output is correct |
| 48 |
Correct |
70 ms |
11484 KB |
Output is correct |
| 49 |
Correct |
62 ms |
11000 KB |
Output is correct |
| 50 |
Correct |
66 ms |
10744 KB |
Output is correct |
| 51 |
Correct |
124 ms |
10016 KB |
Output is correct |
| 52 |
Correct |
102 ms |
9976 KB |
Output is correct |
| 53 |
Correct |
143 ms |
9996 KB |
Output is correct |
| 54 |
Correct |
92 ms |
10028 KB |
Output is correct |
| 55 |
Correct |
97 ms |
9464 KB |
Output is correct |
| 56 |
Correct |
96 ms |
9464 KB |
Output is correct |
| 57 |
Correct |
69 ms |
11240 KB |
Output is correct |
