C/leetcode/src/1189.c

int maxNumberOfBalloons(char * text){
    /* 
        0 -> b, 
        1 -> a,
        2 -> l,
        3 -> o,
        4 -> n
    */
    int count_letters[5] = {0};
    int i, min_counter_ballons;
    
    for (char *ptr = text; *ptr; ptr++) {
        if (*ptr == 'b') {
            count_letters[0]++;
        } else if(*ptr == 'a') {
            count_letters[1]++;
        } else if (*ptr == 'l') {
            count_letters[2]++;
        } else if(*ptr == 'o') {
            count_letters[3]++;
        } else if(*ptr == 'n') {
            count_letters[4]++;
        }
    }
    
    /* Divide by 2 the repeted letters */
    count_letters[2] /= 2;
    count_letters[3] /= 2;
    
    /* Max number of times which we can write ballon is equal to min value of letters on count_letter */
    min_counter_ballons = count_letters[0];
    for (i = 1; i < 5; i++) {
        if (count_letters[i] < min_counter_ballons)
            min_counter_ballons = count_letters[i];
    }
    
    return min_counter_ballons;
}