> #include <iostream.h>
> #include <stdlib.h>
> #include <stdio.h>
> #include <math.h>
> #include <iomanip.h>
> double weight[101];
> int compare(const void *arg1,const void *arg2)
> {
> 	return *(double *)arg1<*(double *)arg2;
> }
> 
> 
> int main()
> {
> 	int N,i,j;
> 	double total,temp;
> 	
> 	total=0;
> 	
> 	cout.setf(ios::fixed);
> 	cout.setf(ios::showpoint);
> 	cout.precision(3);
> 	cin>>N;
> 	for(i=0;i<N;i++) cin>>weight[i];
> 	qsort(weight,N,sizeof(double),compare);
> 	for(i=0;i<N;i++)
> 		for(j=i+1;j<N;j++)
> 			if (weight[i]<weight[j]){
> 				temp=weight[i];
> 				weight[i]=weight[j];
> 				weight[j]=temp;
> 		}
> 	
> 	total=weight[0];
> 	for(i=1;i<N;i++) total=2*sqrt(total*weight[i]);
> 	cout<<total<<endl;
> 	return 0;
> }

• 那该怎么写,在zoj都是这样写的 (0) wanglei 2004-09-30 16:24:30
  • Re:那该怎么写,在zoj都是这样写的 (96) windbells 2004-09-30 16:43:36
    • Thank you! (104) wanglei 2004-09-30 17:40:03