2_Lab04_3.c

#include <stdio.h>
void basketball_game()
{
    int N;
    char name[40];
    int arr[27] = { 0 };
    int i;
    int flag = 0;
    scanf("%d", &N);
    for (i = 0; i < N; i++)
    {
        scanf("%s", name);
        arr[name[0] - 'a']++;
    }
    for (i = 0; i < 26; i++)
    {
        if (arr[i] >= 5)
        {
            printf("%c", i + 'a');
            flag = 1;
        }
    }
    if (flag == 0)
        printf("PREDAJA");

}
int main()
{
    basketball_game();
}