程序代码：

#include<stdio.h>
void main()
{
int m,n,i,j,t=1,a=0;
scanf("%d,%d",&m,&n);
for(i=2;i<=(m<n?m:n);)
{
if(m%i==0&&n%i==0)
{
t*=i;
m=m/i;
n=n/i;
}
else i++;
}
for(j=(m>n?m:n);a<1;)
{
if(j%m==0&&j%n==0)m++;
else j++;
}
printf("the max common divisor is:%d\n",t);
printf("the min common multiple is:%d\n",j);
getch();
}