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답안 #706445

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
706445 2023-03-06T15:04:29 Z mkupanovac Paprike (COI18_paprike) C++14
100 / 100
 80 ms 18420 KB 
#include<bits/stdc++.h>
#define PB push_back
#define ll long long
using namespace std;

const int MAXN = (1e5 + 10);

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

ll dfs(ll node, ll par){
	ll trz = 0, sol = 0;
	podstsum[node] += w[node];
	vector<ll> 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());
	ll 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++){
		ll 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 'long long int dfs(long long int, long long int)':
paprike.cpp:14:5: warning: unused variable 'trz' [-Wunused-variable]
   14 |  ll trz = 0, sol = 0;
      |     ^~~

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 1 ms 2644 KB Output is correct
4 Correct 2 ms 2672 KB Output is correct
5 Correct 2 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 2 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 2 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 2 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 1 ms 2644 KB Output is correct
20 Correct 1 ms 2644 KB Output is correct
21 Correct 2 ms 2644 KB Output is correct

Subtask #2
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 46 ms 18300 KB Output is correct
2 Correct 42 ms 18240 KB Output is correct
3 Correct 43 ms 18212 KB Output is correct
4 Correct 42 ms 18420 KB Output is correct
5 Correct 40 ms 18300 KB Output is correct
6 Correct 50 ms 18284 KB Output is correct
7 Correct 44 ms 18280 KB Output is correct
8 Correct 43 ms 18292 KB Output is correct

Subtask #3
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 1 ms 2644 KB Output is correct
4 Correct 2 ms 2672 KB Output is correct
5 Correct 2 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 2 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 2 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 2 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 1 ms 2644 KB Output is correct
20 Correct 1 ms 2644 KB Output is correct
21 Correct 2 ms 2644 KB Output is correct
22 Correct 2 ms 2772 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 2 ms 2644 KB Output is correct
27 Correct 2 ms 2704 KB Output is correct
28 Correct 3 ms 2644 KB Output is correct
29 Correct 2 ms 2644 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 2 ms 2644 KB Output is correct
35 Correct 4 ms 2644 KB Output is correct
36 Correct 2 ms 2644 KB Output is correct
37 Correct 3 ms 2728 KB Output is correct
38 Correct 2 ms 2648 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 1 ms 2644 KB Output is correct
4 Correct 2 ms 2672 KB Output is correct
5 Correct 2 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 2 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 2 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 2 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 1 ms 2644 KB Output is correct
20 Correct 1 ms 2644 KB Output is correct
21 Correct 2 ms 2644 KB Output is correct
22 Correct 46 ms 18300 KB Output is correct
23 Correct 42 ms 18240 KB Output is correct
24 Correct 43 ms 18212 KB Output is correct
25 Correct 42 ms 18420 KB Output is correct
26 Correct 40 ms 18300 KB Output is correct
27 Correct 50 ms 18284 KB Output is correct
28 Correct 44 ms 18280 KB Output is correct
29 Correct 43 ms 18292 KB Output is correct
30 Correct 2 ms 2772 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 2704 KB Output is correct
36 Correct 3 ms 2644 KB Output is correct
37 Correct 2 ms 2644 KB Output is correct
38 Correct 2 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 4 ms 2644 KB Output is correct
44 Correct 2 ms 2644 KB Output is correct
45 Correct 3 ms 2728 KB Output is correct
46 Correct 2 ms 2648 KB Output is correct
47 Correct 45 ms 12932 KB Output is correct
48 Correct 48 ms 11200 KB Output is correct
49 Correct 50 ms 10452 KB Output is correct
50 Correct 43 ms 10148 KB Output is correct
51 Correct 80 ms 9036 KB Output is correct
52 Correct 54 ms 9164 KB Output is correct
53 Correct 52 ms 9136 KB Output is correct
54 Correct 55 ms 9096 KB Output is correct
55 Correct 46 ms 9112 KB Output is correct
56 Correct 46 ms 9068 KB Output is correct
57 Correct 35 ms 10604 KB Output is correct