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Submission #240757

# Submission time Handle Problem Language Result Execution time Memory
240757 2020-06-21T06:50:14 Z Vimmer Paprike (COI18_paprike) C++14
100 / 100
 80 ms 16044 KB 
#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>

//#pragma GCC optimize("unroll-loops")
//#pragma GCC optimize("-O3")
//#pragma GCC optimize("Ofast")
//#pragma GCC optimize("fast-math")
//#pragma GCC optimize("no-stack-protector")

#define F first
#define S second
#define sz(x) int(x.size())
#define pb push_back
#define N 101001
#define M ll(998244353)
#define inf 1e9 + 1e9


using namespace std;
//using namespace __gnu_pbds;

typedef long double ld;
typedef long long ll;
typedef short int si;
typedef array <int, 3> a3;

//typedef tree <int, null_type, less_equal<int>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;

int n, k, a[N], ans, f[N];

vector <int> g[N];

void dfs(int v, int p)
{
    f[v] = a[v];

    vector <int> gr; gr.clear();

    for (auto it : g[v])
    {
        if (it == p) continue;

        dfs(it, v);

        gr.pb(f[it]);
    }

    sort(gr.begin(), gr.end());

    for (auto it : gr)
    {
        if (f[v] + it > k) ans++;
          else f[v] += it;
    }
}
int main()
{
    //freopen("input.txt", "r", stdin); //freopen("output4.txt", "w", stdout);

    ios_base::sync_with_stdio(0); istream::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    cin >> n >> k;

    for (int i = 1; i <= n; i++) cin >> a[i];

    for (int i = 1; i < n; i++)
    {
        int x, y;

        cin >> x >> y;

        g[x].pb(y);

        g[y].pb(x);
    }

    dfs(1, -1);

    cout << ans << endl;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 2688 KB Output is correct
2 Correct 6 ms 2688 KB Output is correct
3 Correct 6 ms 2688 KB Output is correct
4 Correct 6 ms 2688 KB Output is correct
5 Correct 6 ms 2688 KB Output is correct
6 Correct 6 ms 2688 KB Output is correct
7 Correct 6 ms 2688 KB Output is correct
8 Correct 6 ms 2688 KB Output is correct
9 Correct 6 ms 2688 KB Output is correct
10 Correct 6 ms 2688 KB Output is correct
11 Correct 6 ms 2688 KB Output is correct
12 Correct 6 ms 2688 KB Output is correct
13 Correct 6 ms 2688 KB Output is correct
14 Correct 6 ms 2688 KB Output is correct
15 Correct 6 ms 2688 KB Output is correct
16 Correct 6 ms 2688 KB Output is correct
17 Correct 6 ms 2688 KB Output is correct
18 Correct 7 ms 2688 KB Output is correct
19 Correct 6 ms 2688 KB Output is correct
20 Correct 6 ms 2688 KB Output is correct
21 Correct 6 ms 2688 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 61 ms 15992 KB Output is correct
2 Correct 66 ms 16044 KB Output is correct
3 Correct 65 ms 15992 KB Output is correct
4 Correct 68 ms 15992 KB Output is correct
5 Correct 66 ms 15996 KB Output is correct
6 Correct 62 ms 15992 KB Output is correct
7 Correct 60 ms 15992 KB Output is correct
8 Correct 56 ms 15992 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 2688 KB Output is correct
2 Correct 6 ms 2688 KB Output is correct
3 Correct 6 ms 2688 KB Output is correct
4 Correct 6 ms 2688 KB Output is correct
5 Correct 6 ms 2688 KB Output is correct
6 Correct 6 ms 2688 KB Output is correct
7 Correct 6 ms 2688 KB Output is correct
8 Correct 6 ms 2688 KB Output is correct
9 Correct 6 ms 2688 KB Output is correct
10 Correct 6 ms 2688 KB Output is correct
11 Correct 6 ms 2688 KB Output is correct
12 Correct 6 ms 2688 KB Output is correct
13 Correct 6 ms 2688 KB Output is correct
14 Correct 6 ms 2688 KB Output is correct
15 Correct 6 ms 2688 KB Output is correct
16 Correct 6 ms 2688 KB Output is correct
17 Correct 6 ms 2688 KB Output is correct
18 Correct 7 ms 2688 KB Output is correct
19 Correct 6 ms 2688 KB Output is correct
20 Correct 6 ms 2688 KB Output is correct
21 Correct 6 ms 2688 KB Output is correct
22 Correct 6 ms 2816 KB Output is correct
23 Correct 6 ms 2816 KB Output is correct
24 Correct 6 ms 2816 KB Output is correct
25 Correct 6 ms 2816 KB Output is correct
26 Correct 6 ms 2816 KB Output is correct
27 Correct 6 ms 2816 KB Output is correct
28 Correct 6 ms 2816 KB Output is correct
29 Correct 6 ms 2688 KB Output is correct
30 Correct 7 ms 2816 KB Output is correct
31 Correct 7 ms 2816 KB Output is correct
32 Correct 7 ms 2816 KB Output is correct
33 Correct 6 ms 2816 KB Output is correct
34 Correct 7 ms 2816 KB Output is correct
35 Correct 7 ms 2816 KB Output is correct
36 Correct 6 ms 2816 KB Output is correct
37 Correct 7 ms 2816 KB Output is correct
38 Correct 6 ms 2816 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 2688 KB Output is correct
2 Correct 6 ms 2688 KB Output is correct
3 Correct 6 ms 2688 KB Output is correct
4 Correct 6 ms 2688 KB Output is correct
5 Correct 6 ms 2688 KB Output is correct
6 Correct 6 ms 2688 KB Output is correct
7 Correct 6 ms 2688 KB Output is correct
8 Correct 6 ms 2688 KB Output is correct
9 Correct 6 ms 2688 KB Output is correct
10 Correct 6 ms 2688 KB Output is correct
11 Correct 6 ms 2688 KB Output is correct
12 Correct 6 ms 2688 KB Output is correct
13 Correct 6 ms 2688 KB Output is correct
14 Correct 6 ms 2688 KB Output is correct
15 Correct 6 ms 2688 KB Output is correct
16 Correct 6 ms 2688 KB Output is correct
17 Correct 6 ms 2688 KB Output is correct
18 Correct 7 ms 2688 KB Output is correct
19 Correct 6 ms 2688 KB Output is correct
20 Correct 6 ms 2688 KB Output is correct
21 Correct 6 ms 2688 KB Output is correct
22 Correct 61 ms 15992 KB Output is correct
23 Correct 66 ms 16044 KB Output is correct
24 Correct 65 ms 15992 KB Output is correct
25 Correct 68 ms 15992 KB Output is correct
26 Correct 66 ms 15996 KB Output is correct
27 Correct 62 ms 15992 KB Output is correct
28 Correct 60 ms 15992 KB Output is correct
29 Correct 56 ms 15992 KB Output is correct
30 Correct 6 ms 2816 KB Output is correct
31 Correct 6 ms 2816 KB Output is correct
32 Correct 6 ms 2816 KB Output is correct
33 Correct 6 ms 2816 KB Output is correct
34 Correct 6 ms 2816 KB Output is correct
35 Correct 6 ms 2816 KB Output is correct
36 Correct 6 ms 2816 KB Output is correct
37 Correct 6 ms 2688 KB Output is correct
38 Correct 7 ms 2816 KB Output is correct
39 Correct 7 ms 2816 KB Output is correct
40 Correct 7 ms 2816 KB Output is correct
41 Correct 6 ms 2816 KB Output is correct
42 Correct 7 ms 2816 KB Output is correct
43 Correct 7 ms 2816 KB Output is correct
44 Correct 6 ms 2816 KB Output is correct
45 Correct 7 ms 2816 KB Output is correct
46 Correct 6 ms 2816 KB Output is correct
47 Correct 61 ms 10104 KB Output is correct
48 Correct 72 ms 8568 KB Output is correct
49 Correct 59 ms 7928 KB Output is correct
50 Correct 65 ms 7672 KB Output is correct
51 Correct 80 ms 6908 KB Output is correct
52 Correct 72 ms 6780 KB Output is correct
53 Correct 65 ms 6780 KB Output is correct
54 Correct 70 ms 6648 KB Output is correct
55 Correct 62 ms 6780 KB Output is correct
56 Correct 58 ms 6776 KB Output is correct
57 Correct 44 ms 7664 KB Output is correct