zoj 1847 The Trip

#include<stdio.h>int main(){int n,i;double money[1005];double sum1,sum2,p,p1,p2;while(scanf("%d",&n)&&n){for(i=0,p=0;i<n;i++){scanf("%lf",&money[i]);p+=money[i];}p=p/n;p2=p1=(int)(p*100);p1=p1/100.0;if(p2<(p*100))p2++;p2=p2/100.0;for(i=0,sum1=0,sum2=0;i<n;i++){if(money[i]<p)sum1=sum1+p1-money[i];elsesum2=sum2+money[i]-p2;}if(sum1>sum2)printf("$%.2lfn",sum1);elseprintf("$%.2lfn",sum2);}return 0;}