fork download
copy 
  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5.     int a[5] = {4, 1, 2, 3, 5};
  6.     int* classorder[5];
  7.  
  8.     // Initialize classorder with addresses of elements in a
  9.     for (int i = 0; i < 5; i++) {
  10.         classorder[i] = &a[i];
  11.     }
  12.  
  13.     // Sort the pointers based on the values they point to
  14.     for (int i = 0; i < 5; i++) {
  15.         for (int j = 0; j < i; j++) {
  16.             if (*classorder[i] > *classorder[j]) {
  17.                 // Swap pointers to reorder
  18.                 int* temp = classorder[i];
  19.                 classorder[i] = classorder[j];
  20.                 classorder[j] = temp;
  21.             }
  22.         }
  23.     }
  24.  
  25.     // Output sorted values
  26.     for (int i = 0; i < 5; i++) {
  27.         cout << classorder[i]-&a[0] << " ";
  28.     }
  29.  
  30.     return 0;
  31. }
  32.  
Success #stdin #stdout 0s 5284KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
4 0 3 2 1
https://ideone.com/lGndpp
language:
C++ (gcc 8.3)
created:
59 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!