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Submission #1109820

# Submission time Handle Problem Language Result Execution time Memory
1109820 2024-11-07T17:18:08 Z SulA Ice Hockey World Championship (CEOI15_bobek) C++17
100 / 100
 376 ms 10692 KB 
#include <bits/stdc++.h>
using namespace std;
 
signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr); cout.tie(nullptr);
 
    long long n; long long x; cin >> n >> x;
    long long a1[n/2], a2[(n+1)/2];
    for (auto& y : a1) cin >> y;
    for (auto& y : a2) cin >> y;
    vector<long long> half;
 
    for (long long mask = 0; mask < 1 << (n/2); mask++) {
        long long sum = 0;
        for (long long i = 0; i < n/2; i++) {
            if (mask & (1 << i)) {
                sum += a1[i];
            }
        }
        if (sum <= x) half.push_back(sum);
    }
    sort(half.begin(), half.end());
 
    long long cnt = 0;
    for (long long mask = 0; mask < (1 << ((n+1)/2)); mask++) {
        long long sum = 0;
        for (long long i = 0; i < (n+1)/2; i++) {
            if (mask & (1 << i)) {
                sum += a2[i];
            }
        }
        if (sum <= x) cnt += upper_bound(half.begin(), half.end(), x - sum) - half.begin();
    }
    cout << cnt;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 980 KB Output is correct
2 Correct 95 ms 3532 KB Output is correct
3 Correct 348 ms 10692 KB Output is correct
4 Correct 91 ms 3532 KB Output is correct
5 Correct 13 ms 1152 KB Output is correct
6 Correct 7 ms 724 KB Output is correct
7 Correct 8 ms 336 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 39 ms 1488 KB Output is correct
2 Correct 27 ms 980 KB Output is correct
3 Correct 175 ms 6600 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 6 ms 724 KB Output is correct
6 Correct 14 ms 980 KB Output is correct
7 Correct 8 ms 336 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 63 ms 1656 KB Output is correct
2 Correct 150 ms 3700 KB Output is correct
3 Correct 126 ms 3532 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 75 ms 3532 KB Output is correct
6 Correct 208 ms 10684 KB Output is correct
7 Correct 46 ms 336 KB Output is correct

Subtask #8
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 259 ms 6600 KB Output is correct
2 Correct 25 ms 980 KB Output is correct
3 Correct 8 ms 724 KB Output is correct
4 Correct 1 ms 500 KB Output is correct
5 Correct 6 ms 724 KB Output is correct
6 Correct 150 ms 6600 KB Output is correct
7 Correct 8 ms 336 KB Output is correct

Subtask #9
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 980 KB Output is correct
2 Correct 83 ms 3548 KB Output is correct
3 Correct 8 ms 724 KB Output is correct
4 Correct 8 ms 892 KB Output is correct
5 Correct 84 ms 3532 KB Output is correct
6 Correct 18 ms 980 KB Output is correct
7 Correct 121 ms 336 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 339 ms 10684 KB Output is correct
2 Correct 27 ms 1100 KB Output is correct
3 Correct 9 ms 724 KB Output is correct
4 Correct 376 ms 10692 KB Output is correct
5 Correct 118 ms 6600 KB Output is correct
6 Correct 13 ms 980 KB Output is correct
7 Correct 16 ms 464 KB Output is correct