Prefix Sum Interview Patterns | Subarray Sum + Longest Subarray | Python DSA Binge
Автор: CodeWithJalandhar
Загружено: 2026-02-18
Просмотров: 20
Описание:
If you’re preparing for coding interviews, prefix sum is one of the most important array patterns you must master.
In this binge video, we cover two must-know prefix sum interview problems in one place:
• Subarray Sum Equals K (counting subarrays)
• Longest Subarray with Given Sum (maximum length logic)
Both problems use the same prefix sum + hashmap pattern but test your thinking in different ways. This pattern is frequently asked in service companies, product companies, and online assessments.
We explain everything step by step with:
• clear logic
• dry run
• interview explanation
• clean Python code
This video is part of the DSA Coding for Placements (Python) playlist.
Watch the full playlist in order to build a strong interview foundation.
learn fast, code smart.
#dsa #python #placements #codinginterview #prefixsum #arrays #hashmap #dsapython #interviewprep #learnfastcodesmart
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