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user_5668965
c_cpp
2 years ago
666 B
13
Indexable
#include <bits/stdc++.h>
using namespace std;
bool solve() {
int n;
cin >> n;
string s;
cin >> s;
vector<int> t, m;
for(int i = 0; i < n; i++) {
if(s[i] == 'T')
t.push_back(i);
else
m.push_back(i);
}
if(t.size() != 2 * m.size())
return false;
for(int i = 0; i < m.size(); i++) {
if(m[i] < t[i] || m[i] > t[i + m.size()])
return false;
}
return true;
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(0);
int t;
cin >> t;
while(t--) {
cout << (solve() ? "YES" : "NO") << '\n';
}
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