Submission #1211727

#	Time	Username	Problem	Language	Result	Execution time	Memory
1211727		dima2101	Growing Vegetable is Fun 3 (JOI19_ho_t3)	C++20	0 / 100	0 ms	324 KiB

joi2019_ho_t3

#include <bits/stdc++.h>

#define int long long

signed main()
{
    std::ios::sync_with_stdio(false);
    std::cin.tie(0);
    int n;
    std::cin >> n;

    std::string s;
    std::cin >> s;
    int ans = 0;
    for (int i = 0; i < n; i++)
    {
        if (s[i] == 'A')
        {
            int ind = -1;
            for (int j = i - 1; j >= 1; j--)
            {
                if (s[j] == 'B' && s[j - 1] == 'B')
                {
                    ind = j;
                }
            }
            for (int j = i - 1; j >= ind; j--)
            {
                ans++;
                std::swap(s[j], s[j + 1]);
            }
        }
        else
        {
            int ind = -1;
            for (int j = i - 1; j >= 1; j--)
            {
                if (s[j] == 'A' && s[j - 1] == 'A')
                {
                    ind = j;
                }
            }
            for (int j = i - 1; j >= ind; j--)
            {
                ans++;
                std::swap(s[j], s[j + 1]);
            }
        }
    }

    for (int i = 0; i < (int)s.size() - 1; i++)
    {
        if (s[i] == s[i + 1])
        {
            std::cout << -1;
            return 0;
        }
    }
    std::cout << ans;
}

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