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Pattern 22: LeetCode Interview Patterns
Graphs - BFS
Problemset
Discussion
AI Helper
Getting Started
0/5
Hash Map Patterns
0/33
Two Pointers
0/31
Sliding Window
0/33
Prefix Sum
0/32
Binary Search
0/33
Linked List
0/29
Stack Patterns
0/31
Monotonic Stack
0/32
Heap / Priority Queue
0/32
Trees
0/31
Trie
0/32
Backtracking
0/34
Graphs - BFS
0/32
1
What is Graphs - BFS
2
Prerequisites
3
When to Use
4
When NOT to Use
5
LeetCode 200 Number of Islands - Problem Statement
6
LeetCode 200 Number of Islands - Solution
7
LeetCode 200 Number of Islands - Example and Complexity Analysis
8
LeetCode 200 Number of Islands - Implementation
9
LeetCode 752 Open the Lock - Problem Statement
10
LeetCode 752 Open the Lock - Why Naive Fails
11
LeetCode 752 Open the Lock - Solution
12
LeetCode 752 Open the Lock - Example and Complexity Analysis
13
LeetCode 752 Open the Lock - Implementation
14
LeetCode 994 Rotting Oranges - Problem Statement
15
Quiz: Multi-Source BFS
16
LeetCode 994 Rotting Oranges - Why Naive Fails
17
LeetCode 994 Rotting Oranges - Solution
18
LeetCode 994 Rotting Oranges - Example and Complexity Analysis
19
LeetCode 994 Rotting Oranges - Implementation
20
LeetCode 1091 Shortest Path in Binary Matrix - Problem Statement
21
LeetCode 1091 Shortest Path in Binary Matrix - Why Naive Fails
22
LeetCode 1091 Shortest Path in Binary Matrix - Solution
23
LeetCode 1091 Shortest Path in Binary Matrix - Example and Complexity Analysis
24
LeetCode 1091 Shortest Path in Binary Matrix - Implementation
25
LeetCode 127 Word Ladder - Problem Statement
26
Quiz: BFS for Shortest Path
27
LeetCode 127 Word Ladder - Why Naive Fails
28
LeetCode 127 Word Ladder - Solution
29
LeetCode 127 Word Ladder - Example and Complexity Analysis
30
LeetCode 127 Word Ladder - Implementation
31
Common Mistakes
32
Section Recap
Graphs - DFS
0/36
Topological Sort
0/32
Union Find
0/40
Dynamic Programming - 1D
0/36
Dynamic Programming - 2D
0/32
Intervals
0/31
Greedy
0/40
Bit Manipulation
0/34
Segment Tree
0/27
30-Day LeetCode Study Plan
0/8
14.1
What is Graphs - BFS
2 minutes
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Tasks
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