Question

How to change the last element in array object in C++

Answer 1

#include <iostream>
#include <array>
 
int main () {
  std::array<int, 5> arr;
 
  for (int i = 0; i < 5; i++) arr.at(i) = i + 1;
 
  for (int &n : arr) std::cout << n << ", ";
  
  arr.back() = 99;
  
  std::cout << "\n";
  for (int &n : arr) std::cout << n << ", ";
 
  return 0;
}
 
 
 
/*
run:
 
1, 2, 3, 4, 5, 
1, 2, 3, 4, 99, 
  
*/

 

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