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Submission #640569

# Submission time Handle Problem Language Result Execution time Memory
640569 2022-09-15T01:05:22 Z uylulu Paprike (COI18_paprike) C++14
100 / 100
 53 ms 18272 KB 
#include<bits/stdc++.h>
using namespace std;

#define int long long 
#define ld long double
#define endl "\n"

const int N = 1e5;

int n,k;
int num[N + 1],mn[N + 1];
vector<int> adj[N + 1];

int res = 0;

void dfs(int s,int pa) {
	mn[s] = num[s];
	vector<int> asd;
	for(auto u : adj[s]) {
		if(u == pa) continue;
		dfs(u,s);
		asd.push_back(mn[u]);
	}
	sort(asd.begin(),asd.end());
	for(int i = 0;i < asd.size();i++) {
		if(mn[s] + asd[i] > k) {
			res += ((int)asd.size() - i);
			break;
		}
		mn[s] += asd[i];
	}
}

signed main() {
	// freopen("in.txt","r",stdin);
	// freopen("some.txt","w",stdout);
	ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
	
	cin>>n>>k;
	for(int i = 1;i <= n;i++) cin>>num[i];
	for(int i = 0;i < n - 1;i++) {
		int x,y;
		cin>>x>>y;
		adj[x].push_back(y);
		adj[y].push_back(x);
	}
	dfs(1,-1);
	cout<<res<<endl;
}

Compilation message

paprike.cpp: In function 'void dfs(long long int, long long int)':
paprike.cpp:25:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |  for(int i = 0;i < asd.size();i++) {
      |                ~~^~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 1 ms 2644 KB Output is correct
4 Correct 1 ms 2644 KB Output is correct
5 Correct 1 ms 2644 KB Output is correct
6 Correct 1 ms 2644 KB Output is correct
7 Correct 1 ms 2644 KB Output is correct
8 Correct 1 ms 2644 KB Output is correct
9 Correct 1 ms 2644 KB Output is correct
10 Correct 1 ms 2644 KB Output is correct
11 Correct 1 ms 2644 KB Output is correct
12 Correct 1 ms 2644 KB Output is correct
13 Correct 2 ms 2644 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 1 ms 2644 KB Output is correct
16 Correct 1 ms 2644 KB Output is correct
17 Correct 2 ms 2644 KB Output is correct
18 Correct 1 ms 2644 KB Output is correct
19 Correct 2 ms 2644 KB Output is correct
20 Correct 2 ms 2644 KB Output is correct
21 Correct 1 ms 2644 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 18252 KB Output is correct
2 Correct 39 ms 18244 KB Output is correct
3 Correct 44 ms 18236 KB Output is correct
4 Correct 38 ms 18212 KB Output is correct
5 Correct 47 ms 18208 KB Output is correct
6 Correct 38 ms 18252 KB Output is correct
7 Correct 38 ms 18272 KB Output is correct
8 Correct 35 ms 18248 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 1 ms 2644 KB Output is correct
4 Correct 1 ms 2644 KB Output is correct
5 Correct 1 ms 2644 KB Output is correct
6 Correct 1 ms 2644 KB Output is correct
7 Correct 1 ms 2644 KB Output is correct
8 Correct 1 ms 2644 KB Output is correct
9 Correct 1 ms 2644 KB Output is correct
10 Correct 1 ms 2644 KB Output is correct
11 Correct 1 ms 2644 KB Output is correct
12 Correct 1 ms 2644 KB Output is correct
13 Correct 2 ms 2644 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 1 ms 2644 KB Output is correct
16 Correct 1 ms 2644 KB Output is correct
17 Correct 2 ms 2644 KB Output is correct
18 Correct 1 ms 2644 KB Output is correct
19 Correct 2 ms 2644 KB Output is correct
20 Correct 2 ms 2644 KB Output is correct
21 Correct 1 ms 2644 KB Output is correct
22 Correct 2 ms 2644 KB Output is correct
23 Correct 2 ms 2644 KB Output is correct
24 Correct 2 ms 2644 KB Output is correct
25 Correct 2 ms 2644 KB Output is correct
26 Correct 3 ms 2644 KB Output is correct
27 Correct 2 ms 2644 KB Output is correct
28 Correct 2 ms 2644 KB Output is correct
29 Correct 2 ms 2644 KB Output is correct
30 Correct 1 ms 2644 KB Output is correct
31 Correct 2 ms 2644 KB Output is correct
32 Correct 2 ms 2644 KB Output is correct
33 Correct 2 ms 2644 KB Output is correct
34 Correct 2 ms 2644 KB Output is correct
35 Correct 2 ms 2644 KB Output is correct
36 Correct 2 ms 2644 KB Output is correct
37 Correct 2 ms 2644 KB Output is correct
38 Correct 1 ms 2644 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 1 ms 2644 KB Output is correct
4 Correct 1 ms 2644 KB Output is correct
5 Correct 1 ms 2644 KB Output is correct
6 Correct 1 ms 2644 KB Output is correct
7 Correct 1 ms 2644 KB Output is correct
8 Correct 1 ms 2644 KB Output is correct
9 Correct 1 ms 2644 KB Output is correct
10 Correct 1 ms 2644 KB Output is correct
11 Correct 1 ms 2644 KB Output is correct
12 Correct 1 ms 2644 KB Output is correct
13 Correct 2 ms 2644 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 1 ms 2644 KB Output is correct
16 Correct 1 ms 2644 KB Output is correct
17 Correct 2 ms 2644 KB Output is correct
18 Correct 1 ms 2644 KB Output is correct
19 Correct 2 ms 2644 KB Output is correct
20 Correct 2 ms 2644 KB Output is correct
21 Correct 1 ms 2644 KB Output is correct
22 Correct 42 ms 18252 KB Output is correct
23 Correct 39 ms 18244 KB Output is correct
24 Correct 44 ms 18236 KB Output is correct
25 Correct 38 ms 18212 KB Output is correct
26 Correct 47 ms 18208 KB Output is correct
27 Correct 38 ms 18252 KB Output is correct
28 Correct 38 ms 18272 KB Output is correct
29 Correct 35 ms 18248 KB Output is correct
30 Correct 2 ms 2644 KB Output is correct
31 Correct 2 ms 2644 KB Output is correct
32 Correct 2 ms 2644 KB Output is correct
33 Correct 2 ms 2644 KB Output is correct
34 Correct 3 ms 2644 KB Output is correct
35 Correct 2 ms 2644 KB Output is correct
36 Correct 2 ms 2644 KB Output is correct
37 Correct 2 ms 2644 KB Output is correct
38 Correct 1 ms 2644 KB Output is correct
39 Correct 2 ms 2644 KB Output is correct
40 Correct 2 ms 2644 KB Output is correct
41 Correct 2 ms 2644 KB Output is correct
42 Correct 2 ms 2644 KB Output is correct
43 Correct 2 ms 2644 KB Output is correct
44 Correct 2 ms 2644 KB Output is correct
45 Correct 2 ms 2644 KB Output is correct
46 Correct 1 ms 2644 KB Output is correct
47 Correct 43 ms 11716 KB Output is correct
48 Correct 39 ms 9888 KB Output is correct
49 Correct 39 ms 9212 KB Output is correct
50 Correct 43 ms 8932 KB Output is correct
51 Correct 50 ms 7960 KB Output is correct
52 Correct 51 ms 7860 KB Output is correct
53 Correct 47 ms 7832 KB Output is correct
54 Correct 53 ms 8052 KB Output is correct
55 Correct 46 ms 7868 KB Output is correct
56 Correct 52 ms 7960 KB Output is correct
57 Correct 31 ms 9416 KB Output is correct