Backtracking-1 completed

[Keerthi0910]

No description provided.

[super30admin]

Combination Sum (Problem1.java)

Strengths:

1. Your solution correctly solves the problem using backtracking.
2. Excellent use of the backtracking pattern with a single mutable path list - this is more memory-efficient than creating copies at each recursive call.
3. The code is clean and follows Java conventions.
4. Your time complexity analysis is reasonable.

Areas for Improvement:

1. Formatting: The indentation in the helper method is inconsistent. The "//choose" and "//not choose" comments should be properly aligned with the code they describe.
2. Comments: Consider adding more descriptive comments explaining the algorithm's logic.
3. Edge case consideration: While your solution handles the basic cases, you could add a brief comment about why the order of operations (add, recurse, remove, recurse) is correct.
4. Complexity analysis: Your stated complexity O(2^(T/M)) is a reasonable approximation, but you could clarify that this is the worst-case branching factor.

VERDICT: PASS

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Expression Add Operators (Problem2.java)

EVERTS0: PASS

EVERTS1: PASS

EVERTS2: PASS

EVERTS2: PASS

EVERTS3: PASS

EVERTS3: result.add(path);

VERDICT: PASS