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  1. // Use g++ -std=c++11 or clang++ -std=c++11 to compile.
  2.  
  3. #include <vector> // the general-purpose vector container
  4. #include <iostream>
  5. #include <algorithm> // remove and remove_if
  6.  
  7. bool is_odd(int i)
  8. {
  9.   return (i % 2) != 0;  
  10. }
  11.  
  12. void print(const std::vector<int> &vec)
  13. {
  14.   for (const auto& i: vec) 
  15.     std::cout << i << ' '; 
  16.   std::cout << std::endl;
  17. }
  18.  
  19. int main()
  20. {
  21.   // initialises a vector that holds the numbers from 0-9.
  22.   std::vector<int> v = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
  23.   print(v);
  24.  
  25.   // removes all elements with the value 5
  26.   v.erase( std::remove( std::begin(v), std::end(v), 5 ), std::end(v) ); 
  27.   print(v); 
  28.  
  29.   // removes all odd numbers
  30.   v.erase( std::remove_if(std::begin(v), std::end(v), is_odd), std::end(v) );
  31.   print(v);
  32.  
  33.   return 0;  
  34. }
Success #stdin #stdout 0s 3480KB
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stdin
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Standard input is empty
stdout
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0 1 2 3 4 5 6 7 8 9 
0 1 2 3 4 6 7 8 9 
0 2 4 6 8
https://ideone.com/RxP0L3
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
secret

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