Submission #1236114

#	Time	Username	Problem	Language	Result	Execution time	Memory
1236114		rhm_gan	Miners (IOI07_miners)	C++20	45 / 100	1596 ms	764 KiB

miners

#include <bits/stdc++.h>
using namespace std;

#ifdef LOCAL
#include "debug.h"
#include "generate.h"
#else
#define dbg(...) 42
#endif

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    int n;
    cin >> n;

    string s;
    cin >> s;

    int mx = 0;
    for (int mask = 0; mask < (1 << n); mask++) {
        string a, b;
        for (int i = 0; i < n; i++) {
            if (mask & (1 << i)) {
                a.push_back(s[i]);
            }
            else {
                b.push_back(s[i]);
            }
        }
        int res = 0;
        for (int i = 0; i < a.size(); i++) {
            set<char> s;
            for (int j = i; j >= max(i - 2, 0); j--) {
                s.insert(a[j]);
            }
            res += s.size();
        }
        for (int i = 0; i < b.size(); i++) {
            set<char> s;
            for (int j = i; j >= max(i - 2, 0); j--) {
                s.insert(b[j]);
            }
            res += s.size();
        }
        mx = max(mx, res);
    }

    cout << mx << '\n';

    return 0;
}

• Subtask 1: 9 / 9
• Subtask 2: 9 / 9
• Subtask 3: 9 / 9
• Subtask 4: 9 / 9
• Subtask 5: 9 / 9
• Subtask 6: 0 / 7
• Subtask 7: 0 / 8
• Subtask 8: 0 / 8
• Subtask 9: 0 / 8
• Subtask 10: 0 / 8
• Subtask 11: 0 / 8
• Subtask 12: 0 / 8