C++啊啊啊（在线等）

Question

#include <stdio.h>
void main()
{
int m,n,r,tt,temp;
printf("Please input two positive integers:\n");
scanf("%d%d",&m,&n);
tt=m*n;
if(m<n)
{
_______;
_______;
_______;
}
while((r=m%n)! =0)
{
_______;
_______;
}
printf("The biggest common divisor is %d.\n",n);
printf("The smallest common multiple is %d.\n",tt/n);
}

程序是求最大公约数和最小公倍数。。
空格处该怎么填写啊~
各位帮帮忙啊~
先谢了~

Answer 1

#include <stdio.h>
void main()
{
int m,n,r,tt,temp;
printf("Please input two positive integers:\n");
scanf("%d%d",&m,&n);
tt=m*n;
if(m<n) // 这里用于m,n的交换,由后面的r=m%n判断出m大于n(但是事实上这里不需要的,里面3句可以随便填写,只要不改变tt,m,n的值就行了.)
{
temp=m;
m=n;
n=temp;
}
while((r=m%n)!=0)
{
m = n;
n = r;
}
printf("The biggest common divisor is %d.\n",n);
printf("The smallest common multiple is %d.\n",tt/n);
}

Answer 2

temp=m
m=n
n=temp

m=n
n=r

Answer 3

这里用于m,n的交换,由后面的r=m%n判断出m大于n(但是事实上这里不需要的,里面3句可以随便填写,只要不改变tt,m,n的值就行了.)
{