Submission #3378682


Source Code Expand

#include <iostream>
#include <set>
using namespace std;

int main() {
    int N;
    cin >> N;

    int d[13];
    fill(d, d + 13, 0);
    d[0] = 1;
    for (int i = 0; i < N; ++i) {
        int D;
        cin >> D;
        ++d[D];
    }

    if (d[0] > 1 || d[12] > 1) {
        cout << 0 << endl;
        return 0;
    }

    for (int i = 1; i < 12; ++i) {
        if (d[i] > 2) {
            cout << 0 << endl;
            return 0;
        }
    }

    int ans = 0;
    for (int b = 0; b < (1 << 13); ++b) {
        set<int> t;
        for (int i = 0; i < 13; ++i) {
            if (d[i] == 0) continue;
            if (d[i] == 2) {
                t.insert(12 - i);
                t.insert(12 + i);
                continue;
            }
            if ((b >> i) & 1) {
                t.insert(12 + i);
            } else {
                t.insert(12 - i);
            }
        }

        int s = 30;
        int pre = *t.rbegin();
        for (int now : t) {
            s = min(s, (now - pre + 24) % 24);
            pre = now;
        }

        ans = max(ans, s);
    }

    cout << ans << endl;
    return 0;
}

Submission Info

Submission Time
Task C - Time Gap
User Tiramister
Language C++14 (GCC 5.4.1)
Score 500
Code Size 1185 Byte
Status AC
Exec Time 12 ms
Memory 256 KB

Judge Result

Set Name sample All
Score / Max Score 0 / 0 500 / 500
Status
AC × 3
AC × 49
Set Name Test Cases
sample sample-01.txt, sample-02.txt, sample-03.txt
All sample-01.txt, sample-02.txt, sample-03.txt, 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, 01-09.txt, 01-10.txt, 01-11.txt, 01-12.txt, 01-13.txt, 01-14.txt, 01-15.txt, 01-16.txt, 01-17.txt, 01-18.txt, 01-19.txt, 01-20.txt, 01-21.txt, 01-22.txt, 01-23.txt, 01-24.txt, 01-25.txt, 01-26.txt, 01-27.txt, 01-28.txt, 01-29.txt, 01-30.txt, 01-31.txt, 01-32.txt, 01-33.txt, 01-34.txt, 01-35.txt, 01-36.txt, 01-37.txt, 01-38.txt, 01-39.txt, 01-40.txt, 01-41.txt, 01-42.txt, 01-43.txt, sample-01.txt, sample-02.txt, sample-03.txt
Case Name Status Exec Time Memory
01-01.txt AC 2 ms 256 KB
01-02.txt AC 2 ms 256 KB
01-03.txt AC 3 ms 256 KB
01-04.txt AC 1 ms 256 KB
01-05.txt AC 1 ms 256 KB
01-06.txt AC 1 ms 256 KB
01-07.txt AC 1 ms 256 KB
01-08.txt AC 5 ms 256 KB
01-09.txt AC 1 ms 256 KB
01-10.txt AC 6 ms 256 KB
01-11.txt AC 1 ms 256 KB
01-12.txt AC 1 ms 256 KB
01-13.txt AC 1 ms 256 KB
01-14.txt AC 1 ms 256 KB
01-15.txt AC 1 ms 256 KB
01-16.txt AC 1 ms 256 KB
01-17.txt AC 2 ms 256 KB
01-18.txt AC 2 ms 256 KB
01-19.txt AC 2 ms 256 KB
01-20.txt AC 3 ms 256 KB
01-21.txt AC 3 ms 256 KB
01-22.txt AC 3 ms 256 KB
01-23.txt AC 3 ms 256 KB
01-24.txt AC 3 ms 256 KB
01-25.txt AC 3 ms 256 KB
01-26.txt AC 3 ms 256 KB
01-27.txt AC 4 ms 256 KB
01-28.txt AC 4 ms 256 KB
01-29.txt AC 4 ms 256 KB
01-30.txt AC 4 ms 256 KB
01-31.txt AC 5 ms 256 KB
01-32.txt AC 5 ms 256 KB
01-33.txt AC 5 ms 256 KB
01-34.txt AC 5 ms 256 KB
01-35.txt AC 6 ms 256 KB
01-36.txt AC 6 ms 256 KB
01-37.txt AC 7 ms 256 KB
01-38.txt AC 7 ms 256 KB
01-39.txt AC 12 ms 256 KB
01-40.txt AC 1 ms 256 KB
01-41.txt AC 1 ms 256 KB
01-42.txt AC 1 ms 256 KB
01-43.txt AC 3 ms 256 KB
sample-01.txt AC 3 ms 256 KB
sample-02.txt AC 2 ms 256 KB
sample-03.txt AC 1 ms 256 KB