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Submission #1019691

# Submission time Handle Problem Language Result Execution time Memory
1019691 2024-07-11T07:30:06 Z overwatch9 Sure Bet (CEOI17_sure) C++17
20 / 100
 59 ms 348 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int main() {
    int n;
    cin >> n;
    vector <pair <double, double>> nums(n);
    for (int i = 0; i < n; i++) {
        double a, b;
        cin >> a >> b;
        nums[i].first = a;
        nums[i].second = b;
    }
    double ans = 0;
    for (int i = 0; i < (1 << (2 * n)); i++) {
        double l = 0, r = 0;
        double cnt = __builtin_popcount(i);
        for (int j = 0; j < 2*n; j++) {
            if (i & (1 << j)) {
                if (j % 2 == 0)
                    l += nums[j/2].first;
                else
                    r += nums[j/2].second;
            }
        }
        ans = max(ans, min(l, r) - cnt);
    }
    printf("%.4lf", ans);
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 59 ms 344 KB Output is correct
4 Correct 58 ms 348 KB Output is correct
5 Correct 58 ms 348 KB Output is correct
6 Correct 58 ms 344 KB Output is correct

Subtask #2
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 59 ms 344 KB Output is correct
4 Correct 58 ms 348 KB Output is correct
5 Correct 58 ms 348 KB Output is correct
6 Correct 58 ms 344 KB Output is correct
7 Incorrect 1 ms 348 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #3
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 59 ms 344 KB Output is correct
4 Correct 58 ms 348 KB Output is correct
5 Correct 58 ms 348 KB Output is correct
6 Correct 58 ms 344 KB Output is correct
7 Incorrect 1 ms 348 KB Output isn't correct
8 Halted 0 ms 0 KB -