// make BINGO card
 
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
 
// (int fr) = 1:center free
int *make_bingo_card(int fr) {
	int *b;
	int i, j, loop;
 
	b = (int *)malloc(sizeof(int) * 25);
	if (b) {
		for (i = 0; i < 25; i++) {
			loop = 1;
			while (loop) {
				b[i] = (rand() % 15) + 1 + ((i / 5) * 15);
				if (fr && (i == 12)) {
					b[i] = 0;
				}
				loop = 0;
				for (j = 0; j < i; j++) {
					if (b[i] == b[j]) {
						loop = 1;
					} 
				}
			}
		}
	}
	return b;
}
 
int print_bingo_card(int *b) {
	int i, j;
	char *t1 = "+----+----+----+----+----+\n";
	char *t2 = "   B    I    N    G    O  \n";
	char str[5][32];
 
	if (!b) return 1;
	printf("%s", t2);
	printf("%s", t1);
	for (i = 0; i < 5; i++) {
		if (i) {
			printf("%s", t1);
		}
		for (j = 0; j < 5; j++) {
			if (b[i + (j * 5)]) {
				snprintf(str[j], 31, " %2d ", b[i + (j * 5)]);
			} else {
				snprintf(str[j], 31, "%s", "FREE");
			}
		}
		printf("|%s|%s|%s|%s|%s|\n", str[0], str[1], str[2], str[3], str[4]);
	}
	printf("%s", t1);
	printf("\n");
	return 0;
}
 
int free_bingo_card(int *b) {
	if (b) {
		free(b);
	}
	return 0;
}
 
int main(void) {
	// your code goes here
	int *bingo, i;
 
	srand(time(NULL));
 
	for (i = 0; i < 5; i++) {
		bingo = make_bingo_card(1);
		print_bingo_card(bingo);
		free_bingo_card(bingo);
	}
 
	return 0;
}
 

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