#include    "stdio.h"


void main()
{
    unsigned long int x,y,m,n,l;
    unsigned long int i=1,a,b;
    
    scanf("%ld %ld %ld %ld %ld",&x,&y,&m,&n,&l);
    a=(m+x)%l;
    b=(n+y)%l;
    while(((i*m+x)%l)!=((i*n+y)%l))
    {
        i++;
        if((((i*m+x)%l==a)&&((i*n+y)%l==b))||(i>l))
            {i=0;break;}
    }
    if(i==0)
        printf("Impossible\n");
    else
        printf("%ld\n",i);

    getch();
}

• Re:大家看看我这个算法，为什么老是提醒 超时？如何修改 谢谢了 (17) anlan 2009-08-12 14:46:27