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  1. #include <iostream>
  2. #include <algorithm>
  3. #include <ctype.h>
  4. using namespace std;
  5.  
  6. string lower_case(string x)
  7. {
  8.     std::transform(x.begin(), x.end(), x.begin(), ::tolower);
  9.  
  10.     return x;
  11. }
  12.  
  13. int main()
  14. {
  15.  string str = "HELLO WORLD";
  16.  cout << lower_case(str);
  17.  
  18.  return 0;
  19. }
  20.  
  21.  
Success #stdin #stdout 0s 3472KB
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stdin
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Standard input is empty
stdout
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hello world
https://ideone.com/bZaS6l
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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