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  1. #include <iostream>
  2. #include <math.h>
  3.  
  4.  
  5. using namespace std;
  6. //1000000000
  7. #define int long long
  8. #define nn "\n"
  9. #define ld long double
  10.  
  11. const int INF = 1e12;
  12. const int N = 1e2 + 5;
  13. int t, n;
  14. int fibo[N];
  15. int kq = INF;
  16. signed main(){
  17. 	ios_base::sync_with_stdio; cin.tie(0) ; cout.tie(0);
  18. 	cin >> n;
  19. 	int can = sqrt(n);
  20. 	for(int i = 1; i <= can; i++ ){
  21. 		if(n % i == 0){
  22. 			int x = n / i;
  23. //            if(2 * (x + i) < kq){
  24. //			  cout << x << " " << i << nn;
  25. //	    	}
  26. 	    	kq = min(kq, 2 * (x + i) );
  27. 		}
  28. 	}
  29.     cout << kq << nn ;
  30. }
  31.  
Success #stdin #stdout 0.01s 5320KB
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https://ideone.com/cPb45t
language:
C++14 (gcc 8.3)
created:
5 days ago
visibility:
public

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