Submission #1127246

#	Time	Username	Problem	Language	Result	Execution time	Memory
1127246		eloj	Growing Vegetable is Fun 3 (JOI19_ho_t3)	C++20	0 / 100	0 ms	328 KiB

joi2019_ho_t3

#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;

int main() {
    int n;
    cin >> n;
    string s;
    cin >> s;
    int R = 0, G = 0, Y = 0;
    for (char c : s) {
        if (c == 'R') R++;
        else if (c == 'G') G++;
        else if (c == 'Y') Y++;
    }
    if (R>(n + 1)/2|| G>(n + 1)/2 || Y>(n + 1)/2) {
        cout << -1 << endl;
        return 0;
    }
    int ans = 0;
    for (int i = 0; i < n - 1; ++i) {
        if (s[i] == s[i + 1]) {
            for (int j = i + 1; j < n; ++j) {
                if (s[j] != s[i]) {
                    swap(s[i + 1], s[j]);
                    ans += (j - (i + 1));
                    break;
                }
            }
        }
    }
    cout << ans << endl;
    return 0;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 55
• Subtask 3: 0 / 15
• Subtask 4: 0 / 25