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Submission #564195

# Submission time Handle Problem Language Result Execution time Memory
564195 2022-05-18T17:35:09 Z piOOE Ice Hockey World Championship (CEOI15_bobek) C++17
100 / 100
 530 ms 8532 KB 
#include <bits/stdc++.h>

using namespace std;

#define all(x) begin(x), end(x)
#define sz(x) ((int)size(x))
#define trace(x) cout << #x << ": " << (x) << endl;

typedef long long ll;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int n;
    ll m;
    cin >> n >> m;
    int L = n / 2, R = n - L;
    vector<ll> x(1 << R), a(n);
    for (int i = 0; i < n; ++i) cin >> a[i];
    for (int mask = 0; mask < (1 << R); ++mask) {
        for (int i = 0; i < R; ++i) {
            if ((mask >> i) & 1) {
                x[mask] += a[i + L];
            }
        }
    }
    sort(all(x));
    ll ans = 0;
    for (int mask = 0; mask < (1 << L); ++mask) {
        ll sum = 0;
        for (int i = 0; i < L; ++i) {
            if ((mask >> i) & 1)
                sum += a[i];
        }
        ans += upper_bound(all(x), m - sum) - begin(x);
    }
    cout << ans;
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 320 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 316 KB Output is correct
7 Correct 1 ms 212 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 320 KB Output is correct
3 Correct 1 ms 316 KB Output is correct
4 Correct 1 ms 324 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 1364 KB Output is correct
2 Correct 100 ms 2260 KB Output is correct
3 Correct 530 ms 8532 KB Output is correct
4 Correct 91 ms 2260 KB Output is correct
5 Correct 16 ms 724 KB Output is correct
6 Correct 7 ms 572 KB Output is correct
7 Correct 15 ms 724 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 1364 KB Output is correct
2 Correct 28 ms 1364 KB Output is correct
3 Correct 185 ms 4436 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 7 ms 468 KB Output is correct
6 Correct 13 ms 724 KB Output is correct
7 Correct 15 ms 836 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 59 ms 2260 KB Output is correct
2 Correct 141 ms 4436 KB Output is correct
3 Correct 139 ms 4308 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 76 ms 4436 KB Output is correct
6 Correct 232 ms 8532 KB Output is correct
7 Correct 93 ms 4308 KB Output is correct

Subtask #8
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 317 ms 8532 KB Output is correct
2 Correct 29 ms 1236 KB Output is correct
3 Correct 10 ms 596 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 8 ms 576 KB Output is correct
6 Correct 184 ms 8532 KB Output is correct
7 Correct 14 ms 724 KB Output is correct

Subtask #9
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 1236 KB Output is correct
2 Correct 93 ms 2260 KB Output is correct
3 Correct 9 ms 468 KB Output is correct
4 Correct 10 ms 468 KB Output is correct
5 Correct 103 ms 4436 KB Output is correct
6 Correct 23 ms 1364 KB Output is correct
7 Correct 228 ms 8512 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 361 ms 8532 KB Output is correct
2 Correct 29 ms 1236 KB Output is correct
3 Correct 10 ms 596 KB Output is correct
4 Correct 514 ms 8532 KB Output is correct
5 Correct 120 ms 4412 KB Output is correct
6 Correct 14 ms 724 KB Output is correct
7 Correct 27 ms 1236 KB Output is correct