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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int a,b,l,n;
  6. 	cin>>a,b,l,n;
  7. 	cout<<(n-1)*b*2+a+a*(n*2-2)*2+l;// your code goes here
  8. 	return 0;
  9. }
Success #stdin #stdout 0.01s 5432KB
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2 1 3 4
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-6
https://ideone.com/o6CEm3
language:
C++14 (gcc 8.3)
created:
2 years ago
visibility:
public

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