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我的 c, 简单哦^_^#include <stdio.h>
#include <math.h>
void main()
{
int num,i,j;
double temp;
double input[101]={0};
scanf("%d",&num);
for(i=0;i<num;i++)scanf("%lf",&input[i]);
if(num==1)printf("%.3lf\n",input[0]);
else {
for(i=0;i<num;i++){
for(j=num-2;j>=i;j--)if(input[j]>input[j+1]){
temp=input[j];
input[j]=input[j+1];
input[j+1]=temp;
}
}
for(i=num-2;i>=0;i--){
input[i]=2*sqrt(input[i]*input[i+1]);
}
printf("%.3lf\n",input[0]);
}
}
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