Author name: Admin

⏱ 5 min read Segment Tree and Range Query Interview Patterns Segment trees solve range query problems — finding the sum, min, max, or […] Read article

⏱ 6 min read Trie and String Matching Interview Patterns Tries (prefix trees) and string matching algorithms are a distinct category in coding interviews. Read article

⏱ 5 min read Amortized Analysis and Time Complexity Patterns Amortized analysis evaluates the average performance of operations over a sequence, not worst-case per Read article

⏱ 4 min read Minimum Spanning Tree: Kruskal’s and Prim’s Algorithms A Minimum Spanning Tree (MST) connects all vertices of a weighted graph with Read article

⏱ 4 min read Dynamic Programming Patterns II: Knapsack, LCS, Edit Distance Beyond simple memoization, there are classic DP problem families where recognizing the Read article

⏱ 5 min read Object-Oriented Design (OOD) Interview Patterns: LRU Cache, Parking Lot & More OOD interviews ask you to design a system using Read article

⏱ 5 min read Recursion and Backtracking Interview Patterns Backtracking is systematic exhaustive search with pruning. It builds candidates incrementally and abandons (backtracks) as Read article

⏱ 4 min read String Interview Patterns: Anagram, Palindrome, KMP & More String problems are among the most common in coding interviews. Beyond brute-force Read article

⏱ 4 min read Interval Problem Patterns: Merge, Insert, Overlap & Scheduling Interval problems require manipulating ranges [start, end]. They appear frequently in meeting Read article