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CodeTutor - Coding Interview Preparation
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Showing 20 of 37 questions
01 Matrix
Medium
Arrays
Graphs
BFS (Breadth-First Search)
★
Matrix Traversal
Dynamic Programming
LeetCode #542
Accounts Merge
Medium
Strings
Hash Tables
Graphs
1
2
Union Find
★
DFS (Depth-First Search)
LeetCode #721
All Nodes Distance K in Binary Tree
Medium
Trees
Hash Tables
Graphs
BFS (Breadth-First Search)
★
DFS (Depth-First Search)
LeetCode #863
All Paths From Source to Target
Medium
Recursion
Graphs
DFS (Depth-First Search)
★
Backtracking
LeetCode #797
Amount of Time for Binary Tree to Be Infected
Medium
Trees
Hash Tables
Graphs
BFS (Breadth-First Search)
★
Binary Tree Traversal
LeetCode #2385
As Far from Land as Possible
Medium
Arrays
Graphs
BFS (Breadth-First Search)
★
Matrix Traversal
LeetCode #1162
Battleships in a Board
Medium
Arrays
Graphs
Matrix Traversal
★
LeetCode #419
Bricks Falling When Hit
Hard
Arrays
Graphs
Union Find
★
Matrix Traversal
LeetCode #803
Build a Matrix With Conditions
Hard
Arrays
Graphs
Topological Sort
★
LeetCode #2392
Bus Routes
Hard
Arrays
Hash Tables
Graphs
BFS (Breadth-First Search)
★
LeetCode #815
Cat and Mouse II
Hard
Dynamic Programming
Graphs
BFS (Breadth-First Search)
★
Dynamic Programming
Matrix Traversal
LeetCode #1728
Cat and Mouse
Hard
Dynamic Programming
Graphs
DFS (Depth-First Search)
★
Dynamic Programming
LeetCode #913
Cheapest Flights Within K Stops
Medium
Dynamic Programming
Graphs
BFS (Breadth-First Search)
★
Dynamic Programming
LeetCode #787
Check if There is a Valid Path in a Grid
Medium
Arrays
Graphs
BFS (Breadth-First Search)
DFS (Depth-First Search)
Matrix Traversal
Union Find
★
LeetCode #1391
Check Knight Tour Configuration
Medium
Arrays
Graphs
Matrix Traversal
★
LeetCode #2596
Checking Existence of Edge Length Limited Paths
Hard
Sorting
Arrays
Graphs
Union Find
★
Two Pointers
LeetCode #1697
Clone Graph
Medium
Hash Tables
Graphs
DFS (Depth-First Search)
BFS (Breadth-First Search)
★
LeetCode #133
Course Schedule II
Medium
Graphs
BFS (Breadth-First Search)
★
DFS (Depth-First Search)
LeetCode #210
Course Schedule IV
Medium
Graphs
BFS (Breadth-First Search)
★
DFS (Depth-First Search)
Dynamic Programming
LeetCode #1462
Course Schedule
Medium
Graphs
DFS (Depth-First Search)
BFS (Breadth-First Search)
★
LeetCode #207