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  1. #include <boost/algorithm/string.hpp> 
  2. #include <iostream> 
  3. using namespace boost::algorithm; 
  4. using namespace std; 
  5.  
  6. // Driver Code 
  7. int main() 
  8. { 
  9.     // Given Input 
  10.     string s1 = "    geeks_for_geeks    "; 
  11.     string s2 = "    geeks_for_geeks    "; 
  12.     string s3 = ""; 
  13.  
  14.     // Apply Left Trim on string, s1 
  15.     cout << "The original string is: \""
  16.          << s1 << "\" \n"; 
  17.     trim_left(s1); 
  18.     cout << "Applied left trim: \""
  19.          << s1 << "\" \n\n"; 
  20.  
  21.     // Apply Right Trim on string, s2 
  22.     cout << "The original string is: \""
  23.          << s2 << "\" \n"; 
  24.     trim_right(s2); 
  25.     cout << "Applied right trim: \""
  26.          << s2 << "\" \n\n"; 
  27.  
  28.     // Apply Trim on string, s3 
  29.     cout << "The original string is: \""
  30.          << s3 << "\" \n"; 
  31.     trim(s3); 
  32.     cout << "Applied trim: \"" << s3 
  33.          << "\" \n"; 
  34.  
  35.     return 0; 
  36. }
Success #stdin #stdout 0.01s 5296KB
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Standard input is empty
stdout
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The original string is: "    geeks_for_geeks    " 
Applied left trim: "geeks_for_geeks    " 

The original string is: "    geeks_for_geeks    " 
Applied right trim: "    geeks_for_geeks" 

The original string is: "" 
Applied trim: ""
https://ideone.com/hm6L35
language:
C++14 (gcc 8.3)
created:
11 days ago
visibility:
public

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