C语言函数求最大公约数最小公倍数

#include<stdio.h>

int yue(int a, int b)
{
    int w,t;
    if(a < b)
    {
        t = a;
        a = b;
        b = t;
    }
    while(b != 0)
    {
       w = a % b;
       a = b;
       b = w;
    }
    return a;
}

int bei(int a, int b)
{
    return a * b / yue(a, b);
}

int main()
{
    int a, b, c, d;
    scanf("%d%d", &a, &b);
    c = yue(a, b);
    d = bei(a, b);
    printf("%d\n%d", c, d);
    return 0;
}