[백준] 1159 / 농구 경기

#include <iostream>
using namespace std;


int main()
{
    int N = 0;
    cin >> N;
    int howmanyfisrtname[26] = { 0, };

    for (int i = 0; i < N; i++) {
        string name;
        cin >> name;
        howmanyfisrtname[((int)name[0]) - 97]++;
    }

    bool cango = false;
    for (int i = 0; i < 26; i++) {
        if (howmanyfisrtname[i] >= 5) {
            cout << ((char)(i + 97));
            cango = true;
        }
    }

    if (cango == false) cout << "PREDAJA";
}