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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int getCount(int n)
  5. {
  6.   int count = 0;
  7.   for (int i = 0; i <= n; i++) {
  8.     string s = to_string(i);
  9.     for (int j = 0; j < s.size(); j++)
  10.       if (s[j] == '2')
  11.         count++;
  12.   }
  13.  
  14.   return count;
  15. }
  16.  
  17. int main() {
  18. 	cout << getCount(26) << endl;
  19. 	return 0;
  20. }
Success #stdin #stdout 0s 4552KB
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Standard input is empty
stdout
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10
https://ideone.com/ZxWEeG
language:
C++ (gcc 8.3)
created:
4 years ago
visibility:
public

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