lotto

#include <stdio.h>

#include <stdlib.h>

#include <time.h>

#define lotto_max 45

#define lotto_num 7



int main(void)

{

	int lottonum[lotto_num];

	int duplicate;

	

	srand(time(NULL));

	

	printf("< LOTTO >\n");

	printf("Randomly choose %d numbers from 1 ~ %d\n", lotto_num, lotto_max);

	

	for (int i = 0; i < lotto_num; ++i)

	{

		int randomnum;

		

		do

		{

			randomnum = rand() % lotto_max + 1;

			duplicate = 0;

			

			for (int j = 0; j < i; ++j)

			{

				if (lottonum[j] == randomnum)

				{

					duplicate = 1;

					break;

				}

			}

		}while(duplicate);

		

		lottonum[i] = randomnum;

	}

	

	printf("--------------------------------------\n");

	printf("LOTTO Numbers\n");

	

	for (int i = 0; i < lotto_num; ++i)

	{

		printf("%d ", lottonum[i]);

	}

	printf("\n");

	

	return 0;

}

 

<compile 결과>