Posted inCoding Interview Walkthroughs
Trie Pattern for Coding Interviews in 2026
Master the Trie data structure for coding interviews in 2026 - implementation, key LeetCode problems, and when to use it over a hash map.
Posted inCoding Interview Walkthroughs
Monotonic Stack Pattern for Coding Interviews in 2026
Learn the monotonic stack pattern to solve next-greater-element, daily temperatures, and largest-rectangle interview problems in O(n). Worked Java examples for 2026.
Posted inCoding Interviews
Binary Search Patterns for Coding Interviews 2026
Master binary search for coding interviews in 2026. Learn the template, on-answer search, boundary conditions, and common patterns with clear examples.
Posted inCoding Interview Walkthroughs
Graph BFS and DFS Patterns for Coding Interviews 2026
Master BFS and DFS graph patterns for coding interviews: when to use each, Java templates, cycle detection, and a 7-day LeetCode practice plan for 2026.
Posted inCoding Interview Walkthroughs
Master the Two Pointers Pattern for Coding Interviews
Learn the two pointers technique with clear Java examples, when to use it, and the four interview patterns that turn O(n²) brute force into O(n).
Posted inCoding Interview Walkthroughs
Master the Sliding Window Pattern for Coding Interviews
Learn the sliding window pattern step by step — when to use it, fixed vs. dynamic windows, and 5 classic interview problems solved with code.
Posted inCoding Interview Walkthroughs
Master the Sliding Window Pattern for Coding Interviews
Learn the sliding window pattern with step-by-step examples, templates, and the LeetCode problems that test it. A 2026 coding interview guide.