DSA Article
Practical guides on AI, DSA, full stack, cloud, and career growth.
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Day 10 of 60 Days of DSA: Add One to The Number (Array-Based Arithmetic)
Incrementing Large Numbers Without Converting to Integers
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Day 9 of 60 Days of DSA: Next Permutation of an Array (In-Place Algorithm)
A Classic Array Problem Frequently Asked in Google and Amazon Interviews
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Day 8 of 60 Days DSA — Rain Water Trapped
Uncovering Water Pockets Between Bars Using Efficient Techniques
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Day 7 of 60 Days of DSA: 2D Subarray sum & Search Element
Breaking down 2D matrix traversal and submatrix sum optimisation
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Day 6 of 60 Days DSA — 2D Arrays & Matrices Deep Dive
Finding Missing Numbers, Searching Smartly, and Understanding Contribution in Matrices
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Day 5 of 60 Days of DSA — Flipping Bits & Merging Intervals
Two powerful interval-based problems that test your ability to reason about subarrays and ranges — both of which are frequent in…
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Day 4 of 60 Days of DSA — Arrays: Rotation, Equilibrium Index & Product Puzzle
Three powerful array problems that test your understanding of prefix sums, two-pointer logic, and modular thinking.
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Day 3 of 60 Days of DSA: Prefix odd and even sum algorithms
Learn how prefix sums make “tricky-looking” problems easy to crack in O(N).
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Day 2 of 60 Days of DSA: Subarray with Given Sum & Subarray with Least Average
Learn how to calculate subarray sums problems — from brute force to prefix sums.
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Day 1 of 60 Days of DSA: Subarray Sums & Range Queries
Learn how to calculate subarray sums efficiently — from brute force to prefix sums.
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