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  1. #include <algorithm>
  2. #include <iostream>
  3. #include <string>
  4.  
  5. int main()
  6. {
  7. 	std::string s;
  8. 	std::cin >> s;
  9. 	auto n = std::count(s.cbegin(), s.cend(), '1');
  10. 	std::cout << "the number of '1's in the string \"" << s << "\" is: " << n << "\n";
  11. }
Success #stdin #stdout 0s 3476KB
comments (?)
stdin
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1234512345
stdout
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the number of '1's in the string "1234512345" is: 2
https://ideone.com/4J76ZA
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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