Submission #1175061

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
#define int long long
signed main(){
  int n;
  double a,b;
  cin>>n>>a>>b;
  double s[n];
  for(int i=0;i<n;i++) cin>>s[i];
  double ma=*max_element(s,s+n);
  double mi=*min_element(s,s+n);
  double p,q;
  if(ma==mi){
    if(b!=0) cout<<-1<<endl;
    else{
      p=1.0;q=a-mi;
      printf("%.12f %.12f\n",p,q);
    }
    return 0;
  }
  p=b/(ma-mi);
  double sum=0;
  for(int i=0;i<n;i++) sum+=s[i];
  double ave=sum*p/n;
  q=a-ave;
  printf("%.12f %.12f\n",p,q);
  return 0;
}

Submission Info

Judge Result