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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; } } } } Followed by:
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