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Submission #1005046

# Submission time Handle Problem Language Result Execution time Memory
1005046 2024-06-22T06:39:06 Z Essa2006 Ice Hockey World Championship (CEOI15_bobek) C++14
10 / 100
 63 ms 16668 KB 
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define endl '\n'
#define FF first
#define SS second
#define all(a) a.begin(), a.end()
#define mod (ll)(1000000007)

int main() {
    ios_base::sync_with_stdio(0);cin.tie(0);

    int n;
    ll m;
    cin >> n >> m;

    vector<ll> C(n);
    for (int i = 0; i < n; i++) {
        cin >> C[i];
    }

    array<int, 2> sz = {n / 2, (n + 1) / 2};
    array<vector<ll>, 2> A;
    A[0].clear(), A[1].clear();
    A[0].reserve(1 << 20), A[1].reserve(1 << 20);

    for (int j = 0; j < 2; j++) {
        int shift = (j ? n / 2 : 0);
        for (int msk = 1; msk < (1 << sz[j]); msk++) {
            int cur = msk;
            A[j].push_back(C[63 - __builtin_clzll (msk) + shift]);
            cur = cur & (cur - 1);
            while (cur) {
                A[j].back() += (C[63 - __builtin_clzll(msk)  + shift]);
                cur = cur & (cur - 1);
            }
        }
    }


    ll ans = 0;

    sort(all(A[1]));
    A[0].push_back(0);
    for (int i = 0; i < A[0].size(); i++) {
        if (A[0][i] > m) {
            continue;
        }
        ans++;
        int ind = upper_bound(all(A[1]), m - A[0][i]) - A[1].begin();
        ans += ind;

    }
    cout << ans;
}

Compilation message

bobek.cpp: In function 'int main()':
bobek.cpp:45:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |     for (int i = 0; i < A[0].size(); i++) {
      |                     ~~^~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct

Subtask #2
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 #3
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 #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 5 ms 3676 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 7 ms 4700 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 11 ms 5212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 47 ms 14040 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 1884 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 63 ms 16668 KB Output isn't correct
2 Halted 0 ms 0 KB -