Submission #2421294

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
using Int = long long;

struct Precision{
  Precision(){
    cout<<fixed<<setprecision(12);
  }
}precision_beet;

//INSERT ABOVE HERE
signed main(){
  int x;
  double p;
  cin>>x>>p;
  p/=100;
  double ans=(x&1);
  if(x&1){
    ans+=p*(1/p)*(x-1)/2;
    ans+=(1.-p)*(1/p)*(x+1)/2;    
  }else{
    ans+=(1/p)*x/2;
  }
  cout<<ans<<endl;
  return 0;
}

Submission Info

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