oj.uz

답안 #578963

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
578963 2022-06-18T08:45:45 Z ddy888 Paprike (COI18_paprike) C++17
100 / 100
 85 ms 21868 KB 
#undef _GLIBCXX_DEBUG
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define pb push_back
#define fi first
#define si second
typedef pair<ll,ll> pi;
typedef tuple<int,int,int> ti;  
void debug_out() {cerr<<endl;}
template <typename Head, typename... Tail>
void debug_out(Head _H, Tail... _T) {cerr<<" "<<to_string(_H);debug_out(_T...);}
#define debug(...) cerr<<"["<<#__VA_ARGS__<<"]:",debug_out(__VA_ARGS__)
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const int MAXN = 100010;

int n, k;
vector<int> g[MAXN];

int ans;
ll arr[MAXN];
ll sum[MAXN];

void dfs(int x, int p) {
    priority_queue<ll> hit;
    sum[x] = arr[x];
    for (auto i: g[x]) {
        if (i == p) continue;
        dfs(i, x);
        sum[x] += sum[i];
        hit.push(sum[i]);
    }
  
    while (hit.size() && sum[x] > k) {
        sum[x] -= hit.top();
        hit.pop();
        ++ans;
    }
}

int main() {
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0); 

    cin >> n >> k;
    for (int i = 1; i <= n; ++i) cin >> arr[i];
    for (int i = 1; i < n; ++i) {
        int u, v; cin >> u >> v;
        g[u].pb(v);
        g[v].pb(u);
    }
    dfs(1, 1);
    cout << ans;
    return 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 2596 KB Output is correct
4 Correct 2 ms 2644 KB Output is correct
5 Correct 2 ms 2644 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2644 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 2680 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 2644 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 2680 KB Output is correct
18 Correct 2 ms 2644 KB Output is correct
19 Correct 2 ms 2680 KB Output is correct
20 Correct 2 ms 2644 KB Output is correct
21 Correct 2 ms 2596 KB Output is correct

Subtask #2
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 44 ms 19800 KB Output is correct
2 Correct 44 ms 21764 KB Output is correct
3 Correct 51 ms 21868 KB Output is correct
4 Correct 53 ms 21824 KB Output is correct
5 Correct 44 ms 21716 KB Output is correct
6 Correct 45 ms 21780 KB Output is correct
7 Correct 45 ms 21788 KB Output is correct
8 Correct 44 ms 21392 KB Output is correct

Subtask #3
27.0 / 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 2596 KB Output is correct
4 Correct 2 ms 2644 KB Output is correct
5 Correct 2 ms 2644 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2644 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 2680 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 2644 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 2680 KB Output is correct
18 Correct 2 ms 2644 KB Output is correct
19 Correct 2 ms 2680 KB Output is correct
20 Correct 2 ms 2644 KB Output is correct
21 Correct 2 ms 2596 KB Output is correct
22 Correct 3 ms 2772 KB Output is correct
23 Correct 2 ms 2696 KB Output is correct
24 Correct 3 ms 2764 KB Output is correct
25 Correct 3 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 2692 KB Output is correct
30 Correct 3 ms 2688 KB Output is correct
31 Correct 2 ms 2644 KB Output is correct
32 Correct 2 ms 2688 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 2 ms 2644 KB Output is correct

Subtask #4
49.0 / 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 2596 KB Output is correct
4 Correct 2 ms 2644 KB Output is correct
5 Correct 2 ms 2644 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2644 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 2680 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 2644 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 2680 KB Output is correct
18 Correct 2 ms 2644 KB Output is correct
19 Correct 2 ms 2680 KB Output is correct
20 Correct 2 ms 2644 KB Output is correct
21 Correct 2 ms 2596 KB Output is correct
22 Correct 44 ms 19800 KB Output is correct
23 Correct 44 ms 21764 KB Output is correct
24 Correct 51 ms 21868 KB Output is correct
25 Correct 53 ms 21824 KB Output is correct
26 Correct 44 ms 21716 KB Output is correct
27 Correct 45 ms 21780 KB Output is correct
28 Correct 45 ms 21788 KB Output is correct
29 Correct 44 ms 21392 KB Output is correct
30 Correct 3 ms 2772 KB Output is correct
31 Correct 2 ms 2696 KB Output is correct
32 Correct 3 ms 2764 KB Output is correct
33 Correct 3 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 2692 KB Output is correct
38 Correct 3 ms 2688 KB Output is correct
39 Correct 2 ms 2644 KB Output is correct
40 Correct 2 ms 2688 KB Output is correct
41 Correct 2 ms 2644 KB Output is correct
42 Correct 3 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 2 ms 2644 KB Output is correct
47 Correct 42 ms 13764 KB Output is correct
48 Correct 45 ms 11852 KB Output is correct
49 Correct 51 ms 11056 KB Output is correct
50 Correct 62 ms 10572 KB Output is correct
51 Correct 68 ms 9408 KB Output is correct
52 Correct 56 ms 9432 KB Output is correct
53 Correct 64 ms 9360 KB Output is correct
54 Correct 65 ms 9360 KB Output is correct
55 Correct 85 ms 8860 KB Output is correct
56 Correct 74 ms 8876 KB Output is correct
57 Correct 35 ms 10272 KB Output is correct