public static void main(String args[]) {
        PrintAllSubsequence ps = new PrintAllSubsequence();
        int[] input = {1, 2, 3, 4};
        ps.print(input);
    }
Date 02/25/2016
@author Tushar Roy

Print all subsequence of a given array.

Time complexity is exponential
Space complexity is O(n)
src/com/interview/recursion/PrintAllSubsequence.java