#include <iostream>
#include <cmath>
int main()
{
	unsigned long x,y,m,n,l;
	std::cin>>x>>y>>m>>n>>l;
	if((abs(x-y)%abs(m-n))||x==y)	std::cerr<<"Impossible"<<std::endl;
	else
	{int i=0;
	do
		{x+=m;
		 if(x>=l)	x-=l;
		 y+=n;
		 if(y>=l)	y-=l;
		 i++;
		}
	while(x-y);
	std::cout<<i<<std::endl;
	}
	return 0;
}

• Re:这样的程序哪里错了？ (10) algorithmx 2006-05-06 11:03:50