🔥 Day 20 of Solving 455 problems in 45 Days of Code Challenge💻 | Striver A2Z SDE Sheet 🚀LIVE 🔴

🔥 Day 20 of my 45 Days of Code Challenge is here! Yesterday, we wrapped up Lecture 2 of Step 4 by solving some of the most challenging Binary Search on Answers problems like Allocate Minimum Pages, Split Array Largest Sum, Capacity to Ship Packages, and Median of Two Sorted Arrays ✅. Today, we’re kicking off Lecture 3 of Step 4 — Binary Search on 2D Arrays and diving into problems that test your ability to extend binary search to matrices 🚀. ⚡ Day 20 Plan (Step 4 — Binary Search, Lecture 3) ⏱️ Timestamps 00:00 – Intro to Binary Search on 2D Arrays 05:00 – Search a 2D Matrix 🔎 18:00 – Search a 2D Matrix II 🔢 32:00 – Find Peak Element in a 2D Array ⛰️ 48:00 – Median in a Row-wise Sorted Matrix 📊 58:00 – Wrap-up & Key Takeaways 🎯 Outcomes by EOD ✅ Learned how to apply binary search on matrix-based problems ✅ Solved 4 of the most common 2D array + binary search interview questions ✅ Strengthened intuition for reducing 2D problems into 1D binary search form 🔜 Tomorrow → Step 5 begins: Strings (Basic & Medium Problems) 📝 💡 Binary Search on Answers is where things get exciting — from allocating books to placing cows aggressively 🐄😂. These problems train your optimization + binary search intuition for interviews. Once you understand the pattern of defining the search space, you can crack many “hard-looking” problems efficiently. 👉 Code along, practice dry runs, and let’s make Binary Search our strongest weapon 💪 🐦 Twitter / X: https://x.com/Codecules 📸 Instagram:   / codecules   💼 LinkedIn:   / harshit-dhakad-10353b198   👾 Discord Community:   / discord   💻 GitHub: https://github.com/Happyx07 #45DaysOfCode #Codecules #Capegemini #ltimindtree #CodingConsistency #DSAChallenge #45DaysofCode #Day9Challenge #HardArrayProblems #DSAwithJava #JavaForDSA #ArraysDSA #MaximumProductSubarray #MergeIntervals #MergeOverlappingSubIntervals #LargestZeroSumSubarray #SubarraySumEqualsK #CountSubarraysWithXOR #LongestSubarrayDivisibleByK #PrefixSumDSA #TrappingRainWater #MaximumRectangle #AdvancedArrayProblems #JavaCoding #DSAforPlacements #PlacementPrep #CodingChallenge #prompt #trending #viral #technology #learninpublic #studywithme #studyvlog #nanoBanana #codingconsistency #India #nepal 45 days of code challenge, Striver A2Z DSA roadmap, Striver A2Z DSA sheet solutions, Coding challenge for placements 2025, DSA roadmap step by step, Brute force to optimal solutions, Binary search explained with intuition, Binary search dry run examples, Lower bound vs upper bound binary search, First and last occurrence in sorted array, Search insert position LeetCode explained, Count occurrences in sorted array, Search in rotated sorted array explained, Find peak element binary search, Binary search on answers explained, Painter’s partition problem solution, Aggressive cows problem binary search, Book allocation problem explained, Binary search allocation problems, Most asked binary search interview questions, DSA problems for placements 2025,DSA roadmap for beginners, how to start DSA from scratch, Striver A2Z DSA sheet, best DSA sheet for placements, how to start coding in college, how to prepare for placements from 1st year, best programming language for placements, Java vs C++ for placements, how to crack coding interviews, placement preparation roadmap, DSA roadmap for placements, top 100 DSA problems, most asked DSA interview questions, coding challenge for beginners,