Tag: Algorithms
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Off-by-One Errors in Binary Search: 5 Common Bugs
Fix 5 critical off-by-one bugs in binary search that cause infinite loops and wrong results. Learn boundary checks that actually work.
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Prefix Tree vs Hash Map: 47% Slower Insert Reality
Prefix Tree insert operations benchmark 47% slower than Hash Map despite O(m) complexity. Deep dive into memory layout and cache behavior reveals why.
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Recursion Stack Overflow: DFS Depth Limit & Iterative Fix
Fix recursion stack overflow in DFS algorithms with depth limits and iterative solutions. Learn practical fixes for deep tree traversal problems.
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DP State Design: 7 Patterns That Cut Interview Time in Half
Master the 7 DP state patterns (endpoint, bitmask, range) that solve 80% of interview problems. Includes Kadane, knapsack, and stock cooldown examples.
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Segment Tree Off-by-One: 5 Bugs That Break Range Queries
Fix the 5 off-by-one bugs that silently break segment trees โ child indexing, range splits, lazy propagation. Includes runnable code + failing test cases.
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Top 10 Python Interview Algorithms: BFS to DP
Master 10 interview algorithms fast: BFS, DFS, DP, binary search. Python templates, complexity cheat sheet, and the 3 patterns that solve 80%.
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7 Python Interview Patterns: Two Pointers to Sliding Window
Stop memorizing LeetCode solutions. Master 7 interview patterns that solve 80% of algorithm questions โ with O(n) complexity breakdowns.