Question

How to swap the first and last elements of an array in C++

Answer 1

#include <iostream>
 
int main(void) {
    int array[] = {7, 8, 9, 0, 3};
    int len = sizeof(array)/sizeof(array[0]);
          
    int x = array[0];
     
    array[0] = array[len - 1];
    array[len - 1] = x;
          
    for (int i = 0; i < len; i++) { 
        std::cout << array[i] << " ";
    }
}
 
 
 
 
/*
run:
    
3 8 9 0 7 
    
*/

 

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