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Submission #494867

# Submission time Handle Problem Language Result Execution time Memory
494867 2021-12-17T00:09:07 Z SirCovidThe19th Ice Hockey World Championship (CEOI15_bobek) C++17
100 / 100
 362 ms 20784 KB 
#include <bits/stdc++.h>
using namespace std;

#define ll long long

void go(int n, vector<ll> &vals){
    ll A[n];
    for (ll &i : A) cin >> i;
    for (int i = 0; i < (1 << n); i++){
        ll sm = 0;
        for (int j = 0; j < n; j++) if ((i >> j) & 1) sm += A[j];
        vals.push_back(sm);
    }
    sort(vals.begin(), vals.end());
}

int main(){
    int N; ll M; cin >> N >> M;

    vector<ll> X, Y;
    go(N / 2, X); go(N - N / 2, Y);

    ll ans = 0;
    for (ll i : X) ans += upper_bound(Y.begin(), Y.end(), M - i) - Y.begin();

    cout<<ans<<endl;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 264 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 328 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 ms 288 KB Output is correct
3 Correct 1 ms 300 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 292 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 1968 KB Output is correct
2 Correct 79 ms 5324 KB Output is correct
3 Correct 340 ms 20784 KB Output is correct
4 Correct 84 ms 5388 KB Output is correct
5 Correct 13 ms 1480 KB Output is correct
6 Correct 8 ms 848 KB Output is correct
7 Correct 16 ms 1568 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 2748 KB Output is correct
2 Correct 29 ms 1916 KB Output is correct
3 Correct 145 ms 10544 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 6 ms 848 KB Output is correct
6 Correct 18 ms 1476 KB Output is correct
7 Correct 17 ms 1560 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 65 ms 3504 KB Output is correct
2 Correct 121 ms 6572 KB Output is correct
3 Correct 137 ms 6584 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 72 ms 6568 KB Output is correct
6 Correct 276 ms 20728 KB Output is correct
7 Correct 118 ms 6692 KB Output is correct

Subtask #8
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 236 ms 12724 KB Output is correct
2 Correct 30 ms 1976 KB Output is correct
3 Correct 10 ms 848 KB Output is correct
4 Correct 1 ms 296 KB Output is correct
5 Correct 9 ms 848 KB Output is correct
6 Correct 263 ms 12832 KB Output is correct
7 Correct 19 ms 1596 KB Output is correct

Subtask #9
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 1976 KB Output is correct
2 Correct 85 ms 5416 KB Output is correct
3 Correct 12 ms 848 KB Output is correct
4 Correct 12 ms 960 KB Output is correct
5 Correct 85 ms 6704 KB Output is correct
6 Correct 26 ms 1868 KB Output is correct
7 Correct 314 ms 20696 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 326 ms 20712 KB Output is correct
2 Correct 27 ms 1968 KB Output is correct
3 Correct 11 ms 848 KB Output is correct
4 Correct 362 ms 20712 KB Output is correct
5 Correct 110 ms 10544 KB Output is correct
6 Correct 17 ms 1576 KB Output is correct
7 Correct 38 ms 2860 KB Output is correct