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哪里错了啊?????????????#include<iostream> #include<math.h> using namespace std; int main() { int n,a[100],t; float s; //while(cin>>n) cin>>n; if(n==1) {cin>>a[0]; s=sqrt(double(a[0])); } else { for(int i=0;i<n;i++) cin>>a[i]; for(int x=0;x<n-1;x++) for(int y=x;y<n-1-x;y++) if(a[y]<a[y+1]) { t=a[y]; a[y]=a[y+1]; a[y+1]=t; } s=sqrt(double(a[0])*double(a[1])); } printf("%.3f\n",2*s); return 0; } Followed by:
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