A 求最小公倍数 #include<stdio.h>int gcd(int a,int b){return b>0?gcd(b,a%b):a;}int main(){int a,b;while(~scanf("%d%d",&a,&b)){if(a==0&&b==0) break;printf("%d\n",a*b/gcd(a,b));}return 0;} 记住最大公约数的函数，然后