C生成随机数而不重复

int arraY[13];

for (int i = 0; i < 13; i++) {     // fill array
    arraY[i] = i;
    printf("%d,",arraY[i]);
}
printf("\n done with population \n");
printf("here is the final array\n");

for (int i = 0; i < 13; i++) {    // shuffle array
    int temp = arraY[i];
    int randomIndex = rand() % 13;

    arraY[i]           = arraY[randomIndex];
    arraY[randomIndex] = temp;
}


for (int i = 0; i < 13; i++) {    // print array
    printf("%d,arraY[i]);
}

这是示例输出.

0,1,2,3,4,5,6,7,8,9,10,11,12,done with population 
here is the final array
11,

注意：我使用了最基本的排序.如果你愿意,可以使用更好的一个.