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  1. //Hasan's Garden
  2. #include<bits/stdc++.h>
  3. #define pi 3.141592653589793
  4. #define ll long long int
  5. #define Allv v.begin(),v.end()
  6. #define fast ios_base::sync_with_stdio(0); cin.tie(0);
  7. #define yes cout<<"YES"<<endl
  8. #define no cout<<"NO"<<endl
  9. using namespace std;
  10. void solve()
  11. {
  12.    ll W,w,L,A,a,m;
  13.    cin>>W>>w;
  14.    L=3*W;
  15.    A=L*W;
  16.    m=(L-(2*w))*(W-(2*w));
  17.    a=A-m;
  18.    cout<<a<<"sqm."<<endl;
  19. }
  20. int main()
  21. {
  22.  
  23.  
  24.         solve();
  25.     return 0;
  26.  
  27. }
  28.  
Success #stdin #stdout 0.01s 5336KB
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5020sqm.
https://ideone.com/GiCwcv
language:
C++ (gcc 8.3)
created:
2 years ago
visibility:
public

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