Submission #98415

#	Time	Username	Problem	Language	Result	Execution time	Memory
98415		ahmad_salah	Miners (IOI07_miners)	C++14	25 / 100	33 ms	716 KiB

miners

#include <bits/stdc++.h>

using namespace std;

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    int n, ans = 0;
    string s, m1 = "", m2 = "";
    cin >> n >> s;

    for (int i = 0; i < n; i++) {
        set<char> s1, s2;
        if (m1.size() >= 2)
            s1.insert(m1[m1.size() - 2]);
        if (m1.size())
            s1.insert(m1.back());
        s1.insert(s[i]);

        if (m2.size() >= 2)
            s2.insert(m2[m2.size() - 2]);
        if (m2.size())
            s2.insert(m2.back());
        s2.insert(s[i]);

        if (i == n - 1) {
            if (m1.empty()) {
                m1 += s[i], ans += s1.size();
                break;
            }

            if (m2.empty()) {
                m2 += s[i], ans += s2.size();
                break;
            }
        }
        ans += max(s1.size(), s2.size());

        if (s1.size() > s2.size())
            m1 += s[i];
        else if (s2.size() > s1.size())
            m2 += s[i];
        else
            m1.size() < m2.size() ? m1 += s[i] : m2 += s[i];
    }

    cout << ans << "\n";
    return 0;
}

• Subtask 1: 9 / 9
• Subtask 2: 9 / 9
• Subtask 3: 0 / 9
• Subtask 4: 0 / 9
• Subtask 5: 0 / 9
• Subtask 6: 7 / 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