<![CDATA[Stories by Rohith Vazhathody on Medium]]> https://medium.com/@rohithv63?source=rss-c169aa63317a------2 https://cdn-images-1.medium.com/fit/c/150/150/0*ILKiO5CKEFMukuub Stories by Rohith Vazhathody on Medium https://medium.com/@rohithv63?source=rss-c169aa63317a------2 Medium Fri, 26 Jun 2026 05:02:48 GMT <![CDATA[Java Solution: Redundant Parenthesis Detection O(N)]]>

Stack-Based Approach

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The AtMost trick using Sliding Window

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]]> https://rohithv63.medium.com/count-subarray-with-k-odds-55548886c380?source=rss-c169aa63317a------2 https://medium.com/p/55548886c380 Wed, 07 Jan 2026 18:55:30 GMT 2026-01-07T18:55:30.882Z <![CDATA[Leetcode 1970. Last Day Where You Can Still Cross]]>

Binary Search + BFS and Optimised DSU Approach

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]]> https://rohithv63.medium.com/leetcode-1970-last-day-where-you-can-still-cross-9d092b332b9e?source=rss-c169aa63317a------2 https://medium.com/p/9d092b332b9e Wed, 31 Dec 2025 14:25:05 GMT 2025-12-31T14:25:05.873Z <![CDATA[Kth Missing Positive Number in a Sorted Array]]>

Binary Search to find the missing number

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Greedily select the happy child after decay

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]]> https://rohithv63.medium.com/leetcode-3075-maximize-happiness-of-selected-children-ca2c2291567b?source=rss-c169aa63317a------2 https://medium.com/p/ca2c2291567b Thu, 25 Dec 2025 18:29:55 GMT 2025-12-25T18:29:55.798Z <![CDATA[Leetcode 3573. Best Time to Buy and Sell Stock V]]>

Recursive way of solving this problem.

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]]> https://rohithv63.medium.com/leetcode-3573-best-time-to-buy-and-sell-stock-v-381a97fa09c4?source=rss-c169aa63317a------2 https://medium.com/p/381a97fa09c4 Wed, 24 Dec 2025 18:59:26 GMT 2025-12-24T18:59:26.349Z <![CDATA[Count Indices to Balance Even and Odd Sums]]>

Prefix Sum technique to handle even and odd sums efficiently

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]]> https://rohithv63.medium.com/count-indices-to-balance-even-and-odd-sums-88a152f5db60?source=rss-c169aa63317a------2 https://medium.com/p/88a152f5db60 Tue, 16 Dec 2025 18:58:34 GMT 2025-12-16T18:58:34.398Z <![CDATA[Leetcode 2110. Number of Smooth Descent Periods of a Stock]]>

2 Pointer Approach calculating the contiguous days

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Trace the Seats and count dividers.

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Using Custom Sorting

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