백준 10809번 C++

#include <iostream>
#include <string>
#include <cstring>

using namespace std;
const int MAX = 26;
int answer[MAX];

int main(void) {
	string s;
	cin >> s;

	memset(answer, -1, sizeof(answer));
	for (int i = 0; i < s.length(); i++) {
		if (answer[(int)s[i] - 97] == -1)
			answer[(int)s[i] - 97] = i;
		else
			continue;
	}
	for (int i = 0; i < MAX; i++) 
		cout << answer[i] << " ";
	cout << endl;
	return 0;
}