使用随機函數生成100個互不相同的數字。

//代碼如下

#include <stdio.h>

#include <stdlib.h>

#include <time.h>

int main()

{

int buf[100];

//srand(time(0));

srand((unsigned)time(NULL));

for (int i = 0; i < 100; i++)

{

buf[i] = rand() % 100;

int j;

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

{

if (buf[i] == buf[j])

{

buf[i] = rand() % 100;

j=-1;

}

}

}

for (int i = 0; i < 100; i++)

{

if (i % 10 == 0)

printf("\n");

printf("%2d ", buf[i]);

}

printf("\n");

system("pause");

return 1;

}