CPP

swap values in array c++

#include <algorithm>
#include <iostream>

using namespace std;

int main()
{
     int array[]={1, 2};
     cout<<array[0]<<" "<<array[1]<<endl;
     swap(array[0], array[1]);
     cout<<array[0]<<" "<<array[1];
     return 0;
}

swap elements array c++

// Funtion that swaps array values
void swap(int &a, int &b){
  int temp = a;
  a = b;
  b = temp;
}
// the "&" is very important, since arrays are not mutable we 
// use this operator to swap memory addresses