Articles by Tag #bfs
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How to Choose Between BFS and DFS on LeetCode: A Beginner-Friendly Decision Guide
Every graph or tree problem feels like a coin flip between BFS and DFS. This guide gives you a practical, pattern-based way to choose the right tra...
How to Practice Graph Problems on LeetCode for Beginners: A Structured Roadmap
Graphs feel overwhelming if you jump in randomly. This roadmap walks LeetCode beginners through a staged, pattern-first way to master graph problem...
Stop Memorizing BFS: Trace the Queue Like a Human Compiler
Can you verify your BFS order on a whiteboard? Most candidates can't. Here is the 'Queue Snapshot' technique to trace level-order traversal without...
Can't Explain BFS Under Pressure? Use This Script
Explaining BFS under pressure feels harder than writing it. Here's a repeatable narration with visuals and pitfalls.
DFS and BFS algorithm in php
1. Problem Setup (Tree Structure) A generic tree (not binary): class Node { public...
BFS or DFS? How to Choose in 30 Seconds During Interviews
Stop coin-flipping between BFS and DFS. This decision framework tells you exactly which to pick based on what the question is actually asking.
Level Order BFS: How to Keep Depth Boundaries from Blurring
Without a clear marker strategy, answers drift between levels. Here's how to manage depth markers deliberately.
BFS vs DFS for Binary Trees: A Decision Guide
Interviewers want you to justify BFS vs DFS based on the goal, not habit. Here's a repeatable decision flow.
Optimizing Chip Placement on Circular Wafers Using Breadth-First Search (BFS)
Introduction Semiconductor manufacturing involves fabricating microchips on circular...
Comparing BFS, DFS, Dijkstra, and A* algorithms on a practical maze solver example
Introduction Pathfinding is a fundamental topic in computer science, with applications in...
Grid Teleportation Traversal
Problem TC : vlogv, where v = m*n class Solution { public int minMoves(String[] matrix) { ...
3543. Maximum Weighted K-Edge Path
Problem BFS: TLE class Solution { public int maxWeight(int n, int[][] edges, int k, int t) { ...