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Re:怎么求与呢?我这个竟然还是wa,tle都没有机会In Reply To:Re:求余吧，还要小心The time limted Posted by:8013 at 2003-12-13 17:21:07 #include <iostream>
using namespace std;
void main()
{
long x,y,m,n,L,len,dist;
while(cin>>x>>y>>m>>n>>L)
{
if(m==n&&(x-y)%L!=0)
cout<<"Impossible\n";
else
{
int k=0;
while(((x+(k*m)%L)%L-y-(n*k)%L)%L!=0&&k<L)
{
k++;
}
if(k<L)
cout<<k<<endl;
else
cout<<"Impossible\n";
}
}
}
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