Question

How to get the last N characters of a string in C++

Answer 1

#include <iostream>

std::string get_last_n_characters(std::string const& s, size_t const length) {
  if (length >= s.size()) { 
      return s; 
  }
  return s.substr(s.size() - length);
} 

int main() {
    std::string s = "c++ c php java golang nodejs";
    const int N = 6;
    
    std::string last_n_ch = get_last_n_characters(s, N);
    
    std::cout << last_n_ch;
}



/*
run:

nodejs

*/

 

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