int farmer(int length,int width){
if( length % width == 0){
return width;
}
return farmer(width,length%width);
}
int main () {
printf("3456*550的长方形应分成若干个边长为%d的正方形\n",farmer(3456,550));
printf("550*3456的长方形应分成若干个边长为%d的正方形\n",farmer(550,3456));
return 0;
}