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  1. #include <cctype>
  2.  
  3. #include <iostream>
  4. #include <algorithm>
  5. #include <string>
  6.  
  7. int main() {
  8.  
  9.         using namespace std;
  10.  
  11.         string str = "HELLO WORLD";
  12.  
  13.         transform( str.begin(), str.end(), str.begin(), ::tolower );
  14.  
  15.         cout << str << endl;
  16. }
Success #stdin #stdout 0.02s 2856KB
comments (?)
stdin 
Standard input is empty
stdout 
hello world
https://ideone.com/zFjME
language:
C++ (gcc 8.3)
created:
13 years ago
visibility:
public

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