Day 19 – Recursion, Backtracking, and Math Logic
Siddharth Gandhi
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19 posts published so far
Day 18 – Greedy Algorithms
Siddharth Gandhi
Day 17 – Advanced Linked Lists + Trapping Rainwater
Siddharth Gandhi
Day 16 – Linked List Insertions, Reversal, Midpoint, Merge, Nth Deletion, and Addition
Siddharth Gandhi
Day 15 – Unique Paths, Reverse Pairs, Longest Substring Without Repeating Characters, and Starting Linked Lists
Siddharth Gandhi
Day 14 – Inversions, Max Product Subarray, Merge Intervals, In-Place Merging, Duplicates, and Binary Search Patterns
Siddharth Gandhi
Day 13 – 4Sum, Subarray Sum = 0, XOR = K, Repeating and Missing Numbers
Siddharth Gandhi
Day 12 – Spiral Matrix, Subarray Sum = K, Pascal’s Triangle, Majority Elements (> n/3), and 3Sum
Siddharth Gandhi
Day 11 – Longest Consecutive Sequence, Matrix Set Zeros, Rotate Matrix
Siddharth Gandhi
Day 10 – Dutch Flag, Majority Element, Max Subarray, Stock Buy/Sell, Alternate Sign, Next Permutation, Leaders in Array
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Day 9 – Consecutive Ones, Unique Element, Subarray Sums, and Two Sum
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Day 8 – LeetCode Problems: Move Zeros, Union & Intersection, Missing Number
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Day 7 – Max Element, Second Largest/Smallest, Array Rules, Sorted/Rotated Check, and LeetCode Practice
Siddharth Gandhi
Day 6 – Recursive Sorting Techniques: Merge Sort, Quick Sort & Recursive Versions
Siddharth Gandhi
Day 5 – Hashing (Arrays, Maps) and Basic Sorting
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Day 4 – Recursion and Backtracking
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Day 3 – STL Containers (Part 2), Algorithms & Basic Math
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Day 2 – Standard Template Library (STL) in C++
Siddharth Gandhi
Day 1-Getting Started with DSA (Striver A2Z Sheet)
Siddharth Gandhi