10809 알파벳 찾기 문제풀이 #include using namespace std; int main() { ios::sync_with_stdio(0); cin.tie(0); char str[101]; cin >> str; int alpha[26]; fill_n(alpha, 26, -1); int len = strlen(str); for (int i = 0; i < len; i++) { if (alpha[str[i] - 97] == -1) alpha[str[i] - 97] = i; } for (int a : alpha) { cout