DSA / LeetCode rounds: the patterns that show up

Status: Outline — full guide coming soon. Get notified when it ships →

What this covers

• The 14 patterns and their interview frequency — what shows up in 80% of screens
• The explain-while-coding standard: how to talk through your approach without going silent
• Hint-handling: how to take a hint without sounding stuck (and without ignoring it)
• Language choice: Python vs Java vs TypeScript for the round — which signals what

Why this matters for Indian devs going remote

US/EU interviewers grade Indian candidates more harshly on "explain your thinking" because they often default to silent solving. The technical solve isn't enough — the round is judging communication under pressure. Knowing the patterns is half; performing the explain-while-coding is the other half, and the one most Indian devs under-prep.

Outline

The 14 patterns and frequency

TODO — name them, with hit-rate percentages: two-pointer, sliding window, BFS/DFS, monotonic stack, etc.

Explain-while-coding standard

TODO — the 4-step verbal pattern: restate → approach → trace → code. What "silence" loses.

Hint-handling

TODO — visible acknowledgement, integrate the hint, narrate the new direction; never ignore.

Language choice signal

TODO — Python = startup/AI-eng, Java = big-co, TypeScript = product-eng/frontend; what each communicates.

Common mistakes to avoid

• Solving silently for 25 minutes then revealing the answer
• Picking a language you're "comfortable with" but isn't suited to the question (Python for graph problems is fine; Java for string parsing is not)
• Refusing a hint out of pride

Templates / examples

TODO — the 4-step verbal pattern script, a pattern → frequency cheat sheet, and 3 example mock-interview transcripts.

Related guides

• LeetCode patterns that actually show up + the 20-min struggle method
• Take-homes and live coding: what they're really testing

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