문제
풀이
#include <algorithm>
#include <iostream>
#include <string>
using namespace std;
bool solve(void) {
int n; cin >> n;
string s; cin >> s;
return count(s.begin(), s.end(), 'O') * 2 >= n;
}
int main(void) {
ios::sync_with_stdio(false);
cin.tie(nullptr);
cout << (solve() ? "Yes" : "No");
return 0;
}