SDE - Intern

Step 1 : Understand the problem: Read and understand the problem statement carefully. Ensure that you have a clear understanding of what constitutes a distinct subset and what the expected output should be.
Step 2 : Identify the approach: One way to approach this problem is by using the concept of combinations. The number of distinct subsets of a set with 'n' elements is 2^n. Therefore, we can calculate 2^n as the solution. However, keep in mind that this approach may not be 
Step 3 : Implement the solution: Write a function or code snippet to calculate 2^n using an efficient approach. One common approach is to use bitwise operators. For example, in Python, you can use the << operator to perform left shift operations. The expression 1 << n calculates 2^n.

Step 1 : Initialize variables: Initialize max_length to track the maximum length of a subarray with zero sum. Also, initialize current_sum to keep track of the running sum of elements in the subarray.
Step 2 : Iterate through the array: Traverse the array and update current_sum at each step by adding the current element. Check if current_sum is zero and update max_length accordingly. If current_sum is already present in a dictionary or hash map, update max_length based on the difference between the current index and the stored index.
Step 3 : Return the maximum length: After iterating through the entire array, return max_length as the result.