Submission #432281

#	Time	Username	Problem	Language	Result	Execution time	Memory
432281		tengiz05	Miners (IOI07_miners)	C++17	36 / 100	1584 ms	460 KiB

miners

#include <bits/stdc++.h>
int main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
    int n;
    std::cin >> n;
    std::string s;
    std::cin >> s;
    if (n <= 20) {
        int ans = 0;
        for (int msk = 0; msk < (1 << n); msk++) {
            int res = 0;
            std::string a, b;
            for (int i = 0; i < n; i++) {
                if (msk & (1 << i)) {
                    a += s[i];
                    std::string have = a.substr(std::max(int(a.size()) - 3, 0), 3);
                    res += std::set<char>(have.begin(), have.end()).size();
                } else {
                    b += s[i];
                    std::string have = b.substr(std::max(int(b.size()) - 3, 0), 3);
                    res += std::set<char>(have.begin(), have.end()).size();
                }
            }
            ans = std::max(ans, res);
        }
        std::cout << ans << "\n";
    }
    return 0;
}

• Subtask 1: 9 / 9
• Subtask 2: 9 / 9
• Subtask 3: 9 / 9
• Subtask 4: 9 / 9
• Subtask 5: 0 / 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