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Submission #870357

# Submission time Handle Problem Language Result Execution time Memory
870357 2023-11-07T13:30:06 Z vjudge1 Ice Hockey World Championship (CEOI15_bobek) C++17
0 / 100
 282 ms 9160 KB 
#include <bits/stdc++.h>
#define int long long
using namespace std;
signed main()
{
    int n, m;
    cin >> n >> m;
    vector<int> a(n);
    for (int i = 0; i < n; i++)
        cin >> a[i];
    vector<int> sums;
    for (int i = 0; i < (1 << (n / 2)); i++)
    {
        int sum = 0;
        for (int j = 0; j < n / 2; j++)
            if ((1 << j) & i)
                sum += a[j];
        if (sum <= m)
            sums.push_back(sum);
    }
    sort(sums.begin(),sums.end());
    int sz = sums.size();
    int cnt = 0;
    for (int i = 0; i < (1 << (n - n / 2)); i++)
    {
        int sum = 0;
        for (int j = n/2; j < n; j++)
            if ((1 << j) & i)
                sum += a[j];
        int l = 0, r = sz-1;
        while (r-l > 1)
        {
            int mid = (r+l)/2;
            if (sums[mid] > m-sum)
                r = mid;
            else
                l = mid;
        }
        if (sums[r] <= m-sum)
            l = r;
        cnt+=l;
    }   
    cout << cnt << endl;
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 18 ms 984 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 29 ms 1492 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 38 ms 1488 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 187 ms 5836 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 19 ms 980 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 282 ms 9160 KB Output isn't correct
2 Halted 0 ms 0 KB -