//用到可辗转相除法#include int main(){int m,n; //定义俩个变量int temp; //中间变量scanf("%d%d",&m,&n);//读取两个变量的值while(m%n!=0)//循环求最大公约数{ temp=n;n=m%n;m=temp;}printf("%d\n",n); //打印出...