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  1. #include <bits/stdc++.h>
  2.  
  3. using namespace std;
  4.  
  5. bool sortbysecdesc(const pair<int,long double> &a,
  6.                    const pair<int,long double> &b)
  7. {
  8.        return a.second>b.second;
  9. }
  10.  
  11. int main()
  12. {
  13.     long double n , t1 , t2 , p , x , y , sum , q , w;
  14.     cin>>n>>t1>>t2>>p ;
  15.  
  16.     vector< pair <int , long double> >z;
  17.  
  18.     for(int i = 1 ; i <= n ; ++i)
  19.     {
  20.        cin>>x>>y ;
  21.        q = (y * t1) - ((y * t1) * (p / 100.00)) + (x / 1.00 * (t2/1.00));
  22.        w = (x * t1) - ((x * t1) * (p / 100.00)) + (y / 1.00 * (t2 / 1.00));
  23.        sum = max(q , w);
  24.        z.push_back(make_pair(i , sum));
  25.     }
  26.     sort(z.begin(), z.end(), sortbysecdesc);
  27.     for(int i = 0 ; i < n ; ++i)
  28.        {
  29.           cout<<z[i].first<<" ";
  30.           cout<<fixed<<setprecision(2)<<z[i].second<<endl;
  31.        }
  32.     return 0 ;
  33. }
  34.  
Success #stdin #stdout 0s 15240KB
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https://ideone.com/gwUN8C
language:
C++ (gcc 8.3)
created:
7 years ago
visibility:
public

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