Print Subsets of Array .....

 Print Subsets of Array

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Given an integer array (of length n), find and print all the subsets of input array.

Subsets are of length varying from 0 to n, that contain elements of the array. But the order of elements should remain same as in the input array.
Note : The order of subsets are not important. Just print the subsets in different lines.
Input format :
Line 1 : Integer n, Size of array
Line 2 : Array elements (separated by space)
Constraints :

1 <= n <= 15

Sample Input:
3
15 20 12
Sample Output:
[] (this just represents an empty array, don't worry about the square brackets)
12 
20 
20 12 
15 
15 12 
15 20 
15 20 12 

#include <iostream>
using namespace std;
#include "solution.h"

int main() {
  int input[1000],length;
  cin >> length;
  for(int i=0; i < length; i++)
    cin >> input[i];
  printSubsetsOfArray(input, length);
}

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