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답안 #724946

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
724946 2023-04-16T11:31:20 Z lukadupli Paprike (COI18_paprike) C++14
100 / 100
 160 ms 26100 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

const int MAXN = 3e5 + 5;

int n, k, arr[MAXN];
vector<int> adj[MAXN];
ll sum[MAXN];

int solve(int node, int par){
    int ret = 0;
    sum[node] = arr[node];
    vector<int> v;

    for(int nxt : adj[node]){
        if(nxt != par){
            ret += solve(nxt, node);
            sum[node] += sum[nxt];
            v.push_back(sum[nxt]);
        }
    }

    sort(v.begin(), v.end(), greater<int>());
    for(int i = 0; i < v.size() && sum[node] > k; i++){
        sum[node] -= v[i];
        ret++;
    }

    return ret;
}

int main()
{
    cin >> n >> k;
    for(int i = 1; i <= n; i++) cin >> arr[i];
    for(int i = 0; i < n - 1; i++){
        int a, b;
        cin >> a >> b;

        adj[a].push_back(b);
        adj[b].push_back(a);
    }

    cout << solve(1, -1);

	return 0;
}

Compilation message

paprike.cpp: In function 'int solve(int, int)':
paprike.cpp:27:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |     for(int i = 0; i < v.size() && sum[node] > k; i++){
      |                    ~~^~~~~~~~~~

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 7252 KB Output is correct
2 Correct 4 ms 7252 KB Output is correct
3 Correct 4 ms 7252 KB Output is correct
4 Correct 5 ms 7252 KB Output is correct
5 Correct 4 ms 7252 KB Output is correct
6 Correct 5 ms 7360 KB Output is correct
7 Correct 4 ms 7252 KB Output is correct
8 Correct 4 ms 7252 KB Output is correct
9 Correct 4 ms 7252 KB Output is correct
10 Correct 4 ms 7264 KB Output is correct
11 Correct 4 ms 7252 KB Output is correct
12 Correct 5 ms 7252 KB Output is correct
13 Correct 4 ms 7356 KB Output is correct
14 Correct 4 ms 7252 KB Output is correct
15 Correct 4 ms 7252 KB Output is correct
16 Correct 5 ms 7352 KB Output is correct
17 Correct 4 ms 7360 KB Output is correct
18 Correct 4 ms 7252 KB Output is correct
19 Correct 4 ms 7252 KB Output is correct
20 Correct 4 ms 7252 KB Output is correct
21 Correct 4 ms 7252 KB Output is correct

Subtask #2
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 106 ms 26072 KB Output is correct
2 Correct 114 ms 26100 KB Output is correct
3 Correct 118 ms 26072 KB Output is correct
4 Correct 105 ms 26064 KB Output is correct
5 Correct 102 ms 25980 KB Output is correct
6 Correct 125 ms 25988 KB Output is correct
7 Correct 116 ms 26088 KB Output is correct
8 Correct 93 ms 25548 KB Output is correct

Subtask #3
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 7252 KB Output is correct
2 Correct 4 ms 7252 KB Output is correct
3 Correct 4 ms 7252 KB Output is correct
4 Correct 5 ms 7252 KB Output is correct
5 Correct 4 ms 7252 KB Output is correct
6 Correct 5 ms 7360 KB Output is correct
7 Correct 4 ms 7252 KB Output is correct
8 Correct 4 ms 7252 KB Output is correct
9 Correct 4 ms 7252 KB Output is correct
10 Correct 4 ms 7264 KB Output is correct
11 Correct 4 ms 7252 KB Output is correct
12 Correct 5 ms 7252 KB Output is correct
13 Correct 4 ms 7356 KB Output is correct
14 Correct 4 ms 7252 KB Output is correct
15 Correct 4 ms 7252 KB Output is correct
16 Correct 5 ms 7352 KB Output is correct
17 Correct 4 ms 7360 KB Output is correct
18 Correct 4 ms 7252 KB Output is correct
19 Correct 4 ms 7252 KB Output is correct
20 Correct 4 ms 7252 KB Output is correct
21 Correct 4 ms 7252 KB Output is correct
22 Correct 5 ms 7380 KB Output is correct
23 Correct 5 ms 7380 KB Output is correct
24 Correct 5 ms 7380 KB Output is correct
25 Correct 6 ms 7368 KB Output is correct
26 Correct 6 ms 7380 KB Output is correct
27 Correct 5 ms 7380 KB Output is correct
28 Correct 5 ms 7380 KB Output is correct
29 Correct 6 ms 7372 KB Output is correct
30 Correct 5 ms 7380 KB Output is correct
31 Correct 5 ms 7380 KB Output is correct
32 Correct 7 ms 7380 KB Output is correct
33 Correct 5 ms 7368 KB Output is correct
34 Correct 7 ms 7372 KB Output is correct
35 Correct 5 ms 7368 KB Output is correct
36 Correct 5 ms 7380 KB Output is correct
37 Correct 5 ms 7380 KB Output is correct
38 Correct 5 ms 7380 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 7252 KB Output is correct
2 Correct 4 ms 7252 KB Output is correct
3 Correct 4 ms 7252 KB Output is correct
4 Correct 5 ms 7252 KB Output is correct
5 Correct 4 ms 7252 KB Output is correct
6 Correct 5 ms 7360 KB Output is correct
7 Correct 4 ms 7252 KB Output is correct
8 Correct 4 ms 7252 KB Output is correct
9 Correct 4 ms 7252 KB Output is correct
10 Correct 4 ms 7264 KB Output is correct
11 Correct 4 ms 7252 KB Output is correct
12 Correct 5 ms 7252 KB Output is correct
13 Correct 4 ms 7356 KB Output is correct
14 Correct 4 ms 7252 KB Output is correct
15 Correct 4 ms 7252 KB Output is correct
16 Correct 5 ms 7352 KB Output is correct
17 Correct 4 ms 7360 KB Output is correct
18 Correct 4 ms 7252 KB Output is correct
19 Correct 4 ms 7252 KB Output is correct
20 Correct 4 ms 7252 KB Output is correct
21 Correct 4 ms 7252 KB Output is correct
22 Correct 106 ms 26072 KB Output is correct
23 Correct 114 ms 26100 KB Output is correct
24 Correct 118 ms 26072 KB Output is correct
25 Correct 105 ms 26064 KB Output is correct
26 Correct 102 ms 25980 KB Output is correct
27 Correct 125 ms 25988 KB Output is correct
28 Correct 116 ms 26088 KB Output is correct
29 Correct 93 ms 25548 KB Output is correct
30 Correct 5 ms 7380 KB Output is correct
31 Correct 5 ms 7380 KB Output is correct
32 Correct 5 ms 7380 KB Output is correct
33 Correct 6 ms 7368 KB Output is correct
34 Correct 6 ms 7380 KB Output is correct
35 Correct 5 ms 7380 KB Output is correct
36 Correct 5 ms 7380 KB Output is correct
37 Correct 6 ms 7372 KB Output is correct
38 Correct 5 ms 7380 KB Output is correct
39 Correct 5 ms 7380 KB Output is correct
40 Correct 7 ms 7380 KB Output is correct
41 Correct 5 ms 7368 KB Output is correct
42 Correct 7 ms 7372 KB Output is correct
43 Correct 5 ms 7368 KB Output is correct
44 Correct 5 ms 7380 KB Output is correct
45 Correct 5 ms 7380 KB Output is correct
46 Correct 5 ms 7380 KB Output is correct
47 Correct 114 ms 18120 KB Output is correct
48 Correct 113 ms 16136 KB Output is correct
49 Correct 113 ms 15364 KB Output is correct
50 Correct 124 ms 14876 KB Output is correct
51 Correct 124 ms 13696 KB Output is correct
52 Correct 160 ms 13720 KB Output is correct
53 Correct 107 ms 13644 KB Output is correct
54 Correct 122 ms 13584 KB Output is correct
55 Correct 109 ms 13064 KB Output is correct
56 Correct 94 ms 13132 KB Output is correct
57 Correct 88 ms 14120 KB Output is correct