progress: Hashing-2 implemented

[sneha-tambade]

No description provided.

[super30admin]

• Strengths:
  • The solution correctly implements the prefix sum approach to solve the problem.
  • The code is clean, readable, and follows best practices.
  • The time and space complexity are optimal.
• Areas for Improvement:
  • Instead of using ContainsKey followed by dict[rsum]++, you could use TryGetValue to avoid two dictionary lookups. For example:

    if (dict.TryGetValue(rsum, out int value))
    {
        dict[rsum] = value + 1;
    }
    else
    {
        dict.Add(rsum, 1);
    }

  • The comment at the top of the file could be more detailed to explain the logic more thoroughly, similar to the comments in the other files.