Google code jam Round 1B

好久不写题，第一题的二分也看不出来了......

#include<stdio.h>
int main(){
	int t,T,i,j,n,sum,all,tem,yes;
	int a[210];
	double b;
	freopen("A-large-practice.in","r",stdin); 
	freopen("b.out","w",stdout); 
	scanf("%d",&T);
	for(t=1;t<=T;t++){
		scanf("%d",&n);
		all=0;
		for(i=1;i<=n;i++){
			scanf("%d",&a[i]);
			all+=a[i];
		}
		printf("Case #%d: ",t);
		for(i=1;i<=n;i++){
			double l=0,r=1;
			while((r-l)>=1e-7){
				double mid=(l+r)/2,tem=mid;
				double now=mid*all+a[i];
				for(j=1;j<=n;j++)
					if(i!=j && a[j]<now)
						tem+=(double)(now-a[j])/all;
				if(tem<1)
					l=mid;
				else
					r=mid;
			}
			printf("%.6f",l*100);
			if(i==n)
				printf("\n");
			else
				printf(" ");
			
		}
	}
}