1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
#include<bits/stdc++.h>
using namespace std;

string s;
int N, need, n, y, res;

int main()
{
	cin.sync_with_stdio(0);
	cin >> N;
	cin >> s;
	need = N / 10, y = 0, n = 0;
	for(int i = 0; i < N; ++i)
	{
		if(s[i] == 'T')
			y++;
		else
			n++;
		if(y + n == need)
		{
			if(y == need)
				res++;
			y = n = 0;
		}
	}
	cout << res;
}