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我用相对运动去做! 但是超时!!!现附上我的程序!! 请各位高手指点下可以怎样修改!!先谢了!!#include<stdio.h>
#include<math.h>
void main()
{
int i;
long x,y,m,n,l;
long v,sum,temp;
scanf("%d%d%d%d%d",&x,&y,&m,&n,&l);
if(m==n) printf("Impossible\n");
else
{
if(m>n)
{
v=m-n;
temp=x;
x=y;
y=temp;
} //y追x;x相对y静止
else v=n-m;
sum=y;
i=0;
while(1)
{
sum+=v;
i++;
if(sum%l==x)
{
printf("%d\n",i);
break;
}
else if(sum%l==y)
{
printf("Impossible\n");
break;
}
}
}
}
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