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Submission #760766

# Submission time Handle Problem Language Result Execution time Memory
760766 2023-06-18T11:35:16 Z BidoTeima Ice Hockey World Championship (CEOI15_bobek) C++17
100 / 100
 429 ms 8648 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long; 
int mod = 1e9 + 7;
int main()
{ 
    ios::sync_with_stdio(0),cin.tie(0),cout.tie(0); 
    int n;
    ll m;
    cin>>n>>m;
    ll a[n];
    for(int i = 0; i < n; i++)cin>>a[i];
    // [0, n / 2 - 1], [n / 2, n - 1]
    vector<ll>v;
    for(int mask = 0; mask < (1 << ((n+1)>>1)); mask++){
        ll sum = 0;
        for(int i = 0; i < (n+1)/2; i++){
            if(mask & (1 << i))
                sum += a[i + (n >> 1)];
        }
        v.push_back(sum);
    }
    sort(v.begin(), v.end());
    ll ans = 0;
    for(int mask = 0; mask < (1 << (n >> 1)); mask++){
        ll sum = 0;
        for(int i = 0; i < (n >> 1); i++){
            if(mask & (1 << i))
                sum += a[i];
        }
        ans += upper_bound(v.begin(), v.end(), m - sum) - v.begin();
    }
    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 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 256 KB Output is correct
6 Correct 1 ms 324 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 212 KB Output is correct
3 Correct 1 ms 324 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 340 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 316 KB Output is correct
2 Correct 1 ms 316 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 1368 KB Output is correct
2 Correct 93 ms 2412 KB Output is correct
3 Correct 418 ms 8624 KB Output is correct
4 Correct 85 ms 2444 KB Output is correct
5 Correct 17 ms 856 KB Output is correct
6 Correct 7 ms 708 KB Output is correct
7 Correct 13 ms 856 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 1524 KB Output is correct
2 Correct 27 ms 1492 KB Output is correct
3 Correct 169 ms 4548 KB Output is correct
4 Correct 0 ms 320 KB Output is correct
5 Correct 6 ms 600 KB Output is correct
6 Correct 13 ms 884 KB Output is correct
7 Correct 13 ms 856 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 55 ms 2512 KB Output is correct
2 Correct 131 ms 4536 KB Output is correct
3 Correct 123 ms 4524 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 78 ms 4640 KB Output is correct
6 Correct 221 ms 8572 KB Output is correct
7 Correct 105 ms 4548 KB Output is correct

Subtask #8
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 262 ms 8564 KB Output is correct
2 Correct 26 ms 1492 KB Output is correct
3 Correct 9 ms 600 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 7 ms 600 KB Output is correct
6 Correct 195 ms 8648 KB Output is correct
7 Correct 13 ms 984 KB Output is correct

Subtask #9
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 1476 KB Output is correct
2 Correct 81 ms 2512 KB Output is correct
3 Correct 8 ms 600 KB Output is correct
4 Correct 8 ms 600 KB Output is correct
5 Correct 93 ms 4516 KB Output is correct
6 Correct 21 ms 1492 KB Output is correct
7 Correct 232 ms 8608 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 322 ms 8644 KB Output is correct
2 Correct 28 ms 1492 KB Output is correct
3 Correct 9 ms 600 KB Output is correct
4 Correct 429 ms 8616 KB Output is correct
5 Correct 118 ms 4556 KB Output is correct
6 Correct 15 ms 984 KB Output is correct
7 Correct 26 ms 1476 KB Output is correct