请用C语言帮我完成一道编程题
写一个判断素数的函数,在主函数输出一个整数.输出是否是素数的信息.
上面诸葛先生已经把算法说明白了，我就把程序代码写出来吧
void main()
{
unsigned int i, n;
printf("please enter an integer: ");
scanf("%u", &n);
if (n < 2) {
printf("the integer must be greater than 1.\n");
return;
}
for (i = 2; i <= n/2; i++) {
if (n % i == 0) {
printf("%u is not a prime number.\n", n);
return;
}
}
printf("%u is a prime number.\n", n);
}
