题解

#include <iostream>
using namespace std;
int c, p, d;
string s; 
int main(){
	cin >> s;
	int len = s.size();
	for (int i = 0; i < len; i++){
		if (s[i] == 'c'){
			c++;
		}
		else if (s[i] == 'p'){
			p++;
		}
		else if (s[i] == 'd'){
			d++;
		}
	}
	int mx = 10000;
	if (c < mx) mx = c;
	if (p < mx) mx = p;
	if (d/2 < mx) mx = d/2;
	cout << mx;
	return 0;
}