zoj 1601 Integer Approximation

#include<stdio.h>#include<math.h>#define inf 99999999int main(){int l,n,d,ansn,ansd;double a,min,now,kk;while(scanf("%lf%d",&a,&l)!=EOF){n=1,d=1,min=99999999;while(n<=l&&d<=l){kk=a-(double)n/d;now=fabs(kk);if(now<min){min=now;ansn=n;ansd=d;}if(kk<=0)d++;elsen++;}printf("%d %dn",ansn,ansd);}return 0;}