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CodeTutor - Coding Interview Preparation
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Showing 20 of 228 questions
Matchsticks to Square
Medium
Arrays
Recursion
Backtracking
★
LeetCode #473
Max Area of Island
Medium
Arrays
Graphs
DFS (Depth-First Search)
BFS (Breadth-First Search)
★
Matrix Traversal
1
2
3
4
5
6
7
8
9
10
11
12
LeetCode #695
Maximum Length of Pair Chain
Medium
Arrays
Dynamic Programming
Sorting
Greedy
Overlapping Intervals
★
LeetCode #646
Maximum Product Subarray
Medium
Arrays
Dynamic Programming
Dynamic Programming
★
LeetCode #152
Maximum Subarray
Medium
Arrays
Dynamic Programming
Dynamic Programming
★
LeetCode #53
Maximum Sum Circular Subarray
Medium
Arrays
Dynamic Programming
Dynamic Programming
★
LeetCode #918
Merge Intervals
Medium
Arrays
Sorting
Overlapping Intervals
★
LeetCode #56
Minimum Size Subarray Sum
Medium
Arrays
Binary Search
Sliding Window
Binary Search
★
Prefix Sum
LeetCode #209
Merge Triplets to Form Target Triplet
Medium
Arrays
Greedy
★
LeetCode #1899
Min Cost to Connect All Points
Medium
Heap
Graphs
Heap / Priority Queue
★
Union Find
LeetCode #1584
Min Stack
Medium
Stack
Monotonic Stack
★
LeetCode #155
Minimum Height Trees
Medium
Trees
Graphs
BFS (Breadth-First Search)
★
Binary Tree Traversal
LeetCode #310
Minimum Path Sum
Medium
Arrays
Dynamic Programming
Dynamic Programming
Matrix Traversal
★
LeetCode #64
Multiply Strings
Medium
Strings
Math
Two Pointers
★
LeetCode #43
Network Delay Time
Medium
Heap
Graphs
Heap / Priority Queue
★
BFS (Breadth-First Search)
LeetCode #743
Number of Islands
Medium
Arrays
Graphs
DFS (Depth-First Search)
BFS (Breadth-First Search)
★
Matrix Traversal
LeetCode #200
Online Stock Span
Medium
Stack
Monotonic Stack
★
LeetCode #901
Open the Lock
Medium
Strings
Hash Tables
Graphs
BFS (Breadth-First Search)
★
LeetCode #752
Pacific Atlantic Water Flow
Medium
Arrays
Graphs
DFS (Depth-First Search)
★
Matrix Traversal
LeetCode #417
Palindrome Partitioning
Medium
Strings
Recursion
Dynamic Programming
Backtracking
Dynamic Programming
★
LeetCode #131