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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. double good_round(double num, double zeros){
  5. 	num *= zeros;
  6. 	long long ll_num = num;
  7.  
  8. 	int last_digit = (long long)ll_num % 10;
  9. 	if (last_digit >= 5)
  10. 		ll_num += 10;
  11.  
  12. 	ll_num /= 10;
  13. 	ll_num *= 10;
  14.  
  15. 	return ll_num / zeros;
  16. }
  17.  
  18. int main() {
  19. 	double x = 1.045;
  20. 	// o jedno zero wiecej niz chcemy zaokralgac
  21. 	cout << good_round(x, 1000) << "\n";
  22. 	return 0;
  23. }
Success #stdin #stdout 0.01s 5492KB
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Standard input is empty
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1.05
https://ideone.com/MVzt8y
language:
C++ (gcc 8.3)
created:
3 years ago
visibility:
public

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