随机生成一组数，然后对比是否有相等的数，如果有就重新生成

不知道哪里出错了。。求帮忙解决

# include <stdio.h>
# include <stdlib.h>
# include <time.h>

int main()
{
    int num[N];
    srand((unsigned int)time(NULL));

    for (int i = 0; i < N; i++)
    {
        num[i] = rand()%12+1;
    }

    for (int i = 0; i < N; i++)
    {
        printf("%2d ",num[i]);
    }
    printf("\n\n");
   
    for (int i = 0; i < N; i++)
    {
        for (int j = 0; j < N-i-1; j++)
        {
            if (num[i] == num[j])
            {
                num[i] = rand() % 12 + 1;
            }
        }
    }

    for (int i = 0; i < N; i++)
    {
        printf("%2d ", num[i]);
    }
    return 0;
}

const int N = XXX;

我怎么觉得这个不可能实现呀

不要这样的。。

怎么就无法实现呢，，，

# include <stdio.h>
# include <stdlib.h>
# include <time.h>
#define N 12
int main()
{
    int num[N];
    int i,j;
    srand((unsigned int)time(NULL));

    for ( i = 0; i < N; i++)
    {
        num[i] = rand()%12+1;
    }

    for ( i = 0; i < N; i++)
    {
        printf("%2d ",num[i]);
    }
    printf("\n\n");
        for ( i = 0; i < N; i++)
    {
        num[i] = rand()%12+1;
    }

    for ( i = 0; i < N; i++)
    {
        printf("%2d ",num[i]);
    }
    return 0;
}

这是我的代码，你试一下

这样肯定不对。。这样第二次生成的又无法保证它里面的数是否存在相同的了。

# include <stdio.h>
# include <stdlib.h>
# include <time.h>
#define N 12
int main()
{
    int num[N];
    srand((unsigned int)time(NULL));

    for (int i = 0; i < N; i++)
    {
        num[i] = rand() % 12 + 1;
    }

    for (int i = 0; i < N; i++)
    {
        printf("%2d ", num[i]);
    }
    printf("\n\n");

    for (int i = 0; i < N; i++)
    {
        for (int j = N -1; j > i; j--)
        {
            if (num[i] == num[j])
            {
                num[j] = rand() % 12 + 1;
                /* 如果新生成的数和其他数相等，则不停生成 */
                    for (int k = 0; k < N; k++)
                    {
                        if (k == j)
                        {
                            continue;
                        }
                        if (num[j] == num[k])
                        {
                            num[j] = rand() % 12 + 1;
                            k = 0;
                        }                        
                    }
            }
        }
    }

    for (int i = 0; i < N; i++)
    {
        printf("%2d ", num[i]);
    }
    return 0;
}

多谢。。
可是貌似还是有相同的数。。

                        if (num[j] == num[k])
                         {
                             num[j] = rand() % 12 + 1;
                             k = 0;
                         }        

把k = 0改成k = -1试试