[백준] 5525 - IOIOI(설명X)

#include <iostream>
#include <string>
using namespace std;
 
int main() {
    int N, M, count = 0;
    string S;
    cin >> N >> M >> S;
    for (int j = 0; j < M; j++) {
        if (S[j] == 'I') {
            char tmp = S[j];
            int num = 1;
            while (S[++j] != tmp && j < M) {
                tmp = S[j];
                num++;
            }
            j--;
            if (num - (2 * N + 1) >= 0) {
                count++;
                count += (num - (2 * N + 1)) / 2;
            }
        }
    }
    cout << count << "\n";
}