BOJ 15881 - Pen Pineapple Apple Pen [C++]

문제

링크

풀이

#include <iostream>
#include <string>
using namespace std;
 
void solve(void) {
  int n; cin >> n;
  string s; cin >> s;
 
  int ans = 0;
  for (int i=0; i<n-3; i++) {
    if (s.substr(i, 4) == "pPAp") ans++, i += 3;
  }
  cout << ans;
}
 
int main(void) {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
 
  solve();
  return 0;
}