oj.uz

답안 #706443

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
706443 2023-03-06T15:03:08 Z mkupanovac Paprike (COI18_paprike) C++14
24 / 100
 52 ms 20288 KB 
#include<bits/stdc++.h>
#define PB push_back

using namespace std;

const int MAXN = (1e5 + 10);

int n, k;
int w[MAXN];
int podstsum[MAXN];
vector<int> graph[MAXN];

int dfs(int node, int par){
	int trz = 0, sol = 0;
	podstsum[node] += w[node];
	vector<int> djeca;
	for (auto x: graph[node]){
		if (x == par) continue;
		sol += dfs(x, node);
		podstsum[node] += podstsum[x];
		djeca.PB(podstsum[x]);
	}

	if (podstsum[node] <= k){
		return sol;
	}
	
	sort(djeca.begin(), djeca.end());
	int tr = djeca.size() - 1;
	while (podstsum[node] > k){

		podstsum[node] -= djeca[tr];
		tr--;
		sol++;
	}
	
	
	return sol;
}


int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
	
	cin >> n >> k;
	
	for (int i = 0; i < n; i++)
		cin >> w[i + 1];
		
	for (int i = 0; i < n - 1; i++){
		int a, b;
		cin >> a >> b;
		graph[a].PB(b);
		graph[b].PB(a);
	}
	
	cout << dfs(1, 0) << "\n";
	
	
	
	return 0;
}

Compilation message

paprike.cpp: In function 'int dfs(int, int)':
paprike.cpp:14:6: warning: unused variable 'trz' [-Wunused-variable]
   14 |  int trz = 0, sol = 0;
      |      ^~~

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 1 ms 2680 KB Output is correct
5 Correct 2 ms 2680 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2684 KB Output is correct
8 Correct 2 ms 2644 KB Output is correct
9 Correct 2 ms 2644 KB Output is correct
10 Correct 2 ms 2644 KB Output is correct
11 Correct 2 ms 2644 KB Output is correct
12 Correct 2 ms 2644 KB Output is correct
13 Correct 2 ms 2644 KB Output is correct
14 Correct 2 ms 2680 KB Output is correct
15 Correct 2 ms 2644 KB Output is correct
16 Correct 2 ms 2644 KB Output is correct
17 Correct 2 ms 2644 KB Output is correct
18 Correct 2 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 2684 KB Output is correct

Subtask #2
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 52 ms 20228 KB Output is correct
2 Correct 43 ms 20248 KB Output is correct
3 Correct 45 ms 20232 KB Output is correct
4 Correct 47 ms 20288 KB Output is correct
5 Correct 49 ms 20236 KB Output is correct
6 Correct 43 ms 20172 KB Output is correct
7 Correct 45 ms 20160 KB Output is correct
8 Correct 52 ms 20244 KB Output is correct

Subtask #3
0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 1 ms 2680 KB Output is correct
5 Correct 2 ms 2680 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2684 KB Output is correct
8 Correct 2 ms 2644 KB Output is correct
9 Correct 2 ms 2644 KB Output is correct
10 Correct 2 ms 2644 KB Output is correct
11 Correct 2 ms 2644 KB Output is correct
12 Correct 2 ms 2644 KB Output is correct
13 Correct 2 ms 2644 KB Output is correct
14 Correct 2 ms 2680 KB Output is correct
15 Correct 2 ms 2644 KB Output is correct
16 Correct 2 ms 2644 KB Output is correct
17 Correct 2 ms 2644 KB Output is correct
18 Correct 2 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 2684 KB Output is correct
22 Correct 2 ms 2712 KB Output is correct
23 Correct 2 ms 2688 KB Output is correct
24 Correct 3 ms 2644 KB Output is correct
25 Correct 2 ms 2644 KB Output is correct
26 Correct 2 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 2 ms 2688 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 2684 KB Output is correct
36 Correct 2 ms 2644 KB Output is correct
37 Correct 2 ms 2656 KB Output is correct
38 Incorrect 2 ms 2644 KB Output isn't correct
39 Halted 0 ms 0 KB -

Subtask #4
0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 1 ms 2680 KB Output is correct
5 Correct 2 ms 2680 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2684 KB Output is correct
8 Correct 2 ms 2644 KB Output is correct
9 Correct 2 ms 2644 KB Output is correct
10 Correct 2 ms 2644 KB Output is correct
11 Correct 2 ms 2644 KB Output is correct
12 Correct 2 ms 2644 KB Output is correct
13 Correct 2 ms 2644 KB Output is correct
14 Correct 2 ms 2680 KB Output is correct
15 Correct 2 ms 2644 KB Output is correct
16 Correct 2 ms 2644 KB Output is correct
17 Correct 2 ms 2644 KB Output is correct
18 Correct 2 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 2684 KB Output is correct
22 Correct 52 ms 20228 KB Output is correct
23 Correct 43 ms 20248 KB Output is correct
24 Correct 45 ms 20232 KB Output is correct
25 Correct 47 ms 20288 KB Output is correct
26 Correct 49 ms 20236 KB Output is correct
27 Correct 43 ms 20172 KB Output is correct
28 Correct 45 ms 20160 KB Output is correct
29 Correct 52 ms 20244 KB Output is correct
30 Correct 2 ms 2712 KB Output is correct
31 Correct 2 ms 2688 KB Output is correct
32 Correct 3 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 2 ms 2688 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 2684 KB Output is correct
44 Correct 2 ms 2644 KB Output is correct
45 Correct 2 ms 2656 KB Output is correct
46 Incorrect 2 ms 2644 KB Output isn't correct
47 Halted 0 ms 0 KB -