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真的郁闷了，我有时候总是想不通为什么自己写的程序老是比人家的内存，时间都用得多呢。In Reply To:想不到这样也能AC，郁闷 Posted by:huicpc21 at 2005-08-27 17:32:42 > #include <stdio.h>
> #include <math.h>
>
> main(){
> double d = 0;
> int x,X,y,Y,t;
> scanf("%*d%*d");
> while (4 == scanf("%d%d%d%d",&x,&y,&X,&Y)) {
> d += hypot(x-X,y-Y);
> }
> t = d/1000*2/20*60+.5;
> printf("%d:%0.2d\n",t/60,t%60);
> }
>
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