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  1. #include <iostream>
  2. #include <cmath>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	double l, k;
  7. 	cin >> l >> k;
  8. 	const double c = 1e-5; //вводим константу 
  9. 	cout << (int) log (l - c) / log (k);
  10. 	return 0;
  11. }
Success #stdin #stdout 0s 15232KB
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stdin
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9876543 21
stdout
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5.25534
https://ideone.com/K89Bsn
421 log
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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