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Submission #465439

# Submission time Handle Problem Language Result Execution time Memory
465439 2021-08-16T06:22:00 Z Khizri Paprike (COI18_paprike) C++17
100 / 100
 75 ms 38344 KB 
#include <bits/stdc++.h>
using namespace std;
//------------------------------DEFINE------------------------------
//******************************************************************
#define IOS ios_base::sync_with_stdio(false); cin.tie(0),cout.tie(0)
#define ll long long
#define pb push_back		 
#define F first																 
#define S second 															 
#define INF 1e18
#define all(v) (v).begin(),(v).end()
#define rall(v) (v).rbegin(),(v).rend()
#define pii pair<int,int>
#define pll pair<ll,ll>
#define OK cout<<"Ok"<<endl;
#define MOD (ll)(1e9+7)
#define endl "\n"
//******************************************************************
//----------------------------FUNCTION------------------------------
//******************************************************************
ll gcd(ll a,ll b){
	if(a>b) swap(a,b);
	if(a==0) return a+b;
	return gcd(b%a,a);
}
ll lcm(ll a,ll b){
	return a/gcd(a,b)*b;
}
bool is_prime(ll n){
	ll k=sqrt(n);
	if(n==2) return true;
	if(n<2||n%2==0||k*k==n) return false;
	for(int i=3;i<=k;i+=2){
		if(n%i==0){
			return false;
		}
	}
	return true;
}
//*****************************************************************
//--------------------------MAIN-CODE------------------------------
const int mxn=1e6+5;
int t=1,n,k,arr[mxn],a,b,ans=0;
vector<int>vt[mxn];
int dfs(int u,int p){
	int sum=arr[u];
	vector<int>vv;
	for(int v:vt[u]){
		if(v!=p){
			int q=dfs(v,u);
			vv.pb(q);
		}
	}
	sort(all(vv));
	for(int x:vv){
		if(sum+x<=k){
			sum+=x;
		}
		else{
			ans++;
		}
	}
	return sum;
}
void solve(){
	cin>>n>>k;
	for(int i=1;i<=n;i++){
		cin>>arr[i];
	}
	for(int i=1;i<n;i++){
		cin>>a>>b;
		vt[a].pb(b);
		vt[b].pb(a);
	}
	dfs(1,-1);
	cout<<ans<<endl;
}
int main(){
	IOS;
	//cin>>t;
	while(t--){
		solve();
	}
	return 0;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 23712 KB Output is correct
2 Correct 13 ms 23800 KB Output is correct
3 Correct 13 ms 23780 KB Output is correct
4 Correct 14 ms 23756 KB Output is correct
5 Correct 14 ms 23756 KB Output is correct
6 Correct 15 ms 23776 KB Output is correct
7 Correct 13 ms 23756 KB Output is correct
8 Correct 13 ms 23796 KB Output is correct
9 Correct 14 ms 23768 KB Output is correct
10 Correct 14 ms 23756 KB Output is correct
11 Correct 16 ms 23752 KB Output is correct
12 Correct 16 ms 23760 KB Output is correct
13 Correct 13 ms 23772 KB Output is correct
14 Correct 14 ms 23724 KB Output is correct
15 Correct 15 ms 23756 KB Output is correct
16 Correct 15 ms 23780 KB Output is correct
17 Correct 13 ms 23756 KB Output is correct
18 Correct 14 ms 23792 KB Output is correct
19 Correct 13 ms 23800 KB Output is correct
20 Correct 13 ms 23704 KB Output is correct
21 Correct 13 ms 23784 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 63 ms 38224 KB Output is correct
2 Correct 65 ms 38224 KB Output is correct
3 Correct 63 ms 38232 KB Output is correct
4 Correct 63 ms 38184 KB Output is correct
5 Correct 65 ms 38344 KB Output is correct
6 Correct 62 ms 38244 KB Output is correct
7 Correct 62 ms 38212 KB Output is correct
8 Correct 63 ms 38284 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 23712 KB Output is correct
2 Correct 13 ms 23800 KB Output is correct
3 Correct 13 ms 23780 KB Output is correct
4 Correct 14 ms 23756 KB Output is correct
5 Correct 14 ms 23756 KB Output is correct
6 Correct 15 ms 23776 KB Output is correct
7 Correct 13 ms 23756 KB Output is correct
8 Correct 13 ms 23796 KB Output is correct
9 Correct 14 ms 23768 KB Output is correct
10 Correct 14 ms 23756 KB Output is correct
11 Correct 16 ms 23752 KB Output is correct
12 Correct 16 ms 23760 KB Output is correct
13 Correct 13 ms 23772 KB Output is correct
14 Correct 14 ms 23724 KB Output is correct
15 Correct 15 ms 23756 KB Output is correct
16 Correct 15 ms 23780 KB Output is correct
17 Correct 13 ms 23756 KB Output is correct
18 Correct 14 ms 23792 KB Output is correct
19 Correct 13 ms 23800 KB Output is correct
20 Correct 13 ms 23704 KB Output is correct
21 Correct 13 ms 23784 KB Output is correct
22 Correct 14 ms 23880 KB Output is correct
23 Correct 15 ms 23860 KB Output is correct
24 Correct 14 ms 23852 KB Output is correct
25 Correct 14 ms 23848 KB Output is correct
26 Correct 14 ms 23792 KB Output is correct
27 Correct 15 ms 23812 KB Output is correct
28 Correct 14 ms 23812 KB Output is correct
29 Correct 14 ms 23784 KB Output is correct
30 Correct 14 ms 23736 KB Output is correct
31 Correct 14 ms 23752 KB Output is correct
32 Correct 14 ms 23756 KB Output is correct
33 Correct 14 ms 23840 KB Output is correct
34 Correct 15 ms 23756 KB Output is correct
35 Correct 14 ms 23784 KB Output is correct
36 Correct 15 ms 23756 KB Output is correct
37 Correct 14 ms 23836 KB Output is correct
38 Correct 13 ms 23756 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 23712 KB Output is correct
2 Correct 13 ms 23800 KB Output is correct
3 Correct 13 ms 23780 KB Output is correct
4 Correct 14 ms 23756 KB Output is correct
5 Correct 14 ms 23756 KB Output is correct
6 Correct 15 ms 23776 KB Output is correct
7 Correct 13 ms 23756 KB Output is correct
8 Correct 13 ms 23796 KB Output is correct
9 Correct 14 ms 23768 KB Output is correct
10 Correct 14 ms 23756 KB Output is correct
11 Correct 16 ms 23752 KB Output is correct
12 Correct 16 ms 23760 KB Output is correct
13 Correct 13 ms 23772 KB Output is correct
14 Correct 14 ms 23724 KB Output is correct
15 Correct 15 ms 23756 KB Output is correct
16 Correct 15 ms 23780 KB Output is correct
17 Correct 13 ms 23756 KB Output is correct
18 Correct 14 ms 23792 KB Output is correct
19 Correct 13 ms 23800 KB Output is correct
20 Correct 13 ms 23704 KB Output is correct
21 Correct 13 ms 23784 KB Output is correct
22 Correct 63 ms 38224 KB Output is correct
23 Correct 65 ms 38224 KB Output is correct
24 Correct 63 ms 38232 KB Output is correct
25 Correct 63 ms 38184 KB Output is correct
26 Correct 65 ms 38344 KB Output is correct
27 Correct 62 ms 38244 KB Output is correct
28 Correct 62 ms 38212 KB Output is correct
29 Correct 63 ms 38284 KB Output is correct
30 Correct 14 ms 23880 KB Output is correct
31 Correct 15 ms 23860 KB Output is correct
32 Correct 14 ms 23852 KB Output is correct
33 Correct 14 ms 23848 KB Output is correct
34 Correct 14 ms 23792 KB Output is correct
35 Correct 15 ms 23812 KB Output is correct
36 Correct 14 ms 23812 KB Output is correct
37 Correct 14 ms 23784 KB Output is correct
38 Correct 14 ms 23736 KB Output is correct
39 Correct 14 ms 23752 KB Output is correct
40 Correct 14 ms 23756 KB Output is correct
41 Correct 14 ms 23840 KB Output is correct
42 Correct 15 ms 23756 KB Output is correct
43 Correct 14 ms 23784 KB Output is correct
44 Correct 15 ms 23756 KB Output is correct
45 Correct 14 ms 23836 KB Output is correct
46 Correct 13 ms 23756 KB Output is correct
47 Correct 65 ms 31312 KB Output is correct
48 Correct 67 ms 29424 KB Output is correct
49 Correct 65 ms 28792 KB Output is correct
50 Correct 64 ms 28456 KB Output is correct
51 Correct 70 ms 27360 KB Output is correct
52 Correct 71 ms 27332 KB Output is correct
53 Correct 72 ms 27424 KB Output is correct
54 Correct 75 ms 27332 KB Output is correct
55 Correct 68 ms 27308 KB Output is correct
56 Correct 67 ms 27416 KB Output is correct
57 Correct 53 ms 28444 KB Output is correct