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CodeTutor - Coding Interview Preparation
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Showing 20 of 228 questions
Design Add and Search Words Data Structure
Medium
Trees
Strings
Trie
★
DFS (Depth-First Search)
LeetCode #211
Design Twitter
Medium
Heap
Hash Tables
Heap / Priority Queue
★
LeetCode #355
1
2
3
4
5
6
7
8
9
10
11
12
Detect Squares
Medium
Arrays
Hash Tables
Hashing
★
LeetCode #2013
Jump Game II
Medium
Arrays
Dynamic Programming
Greedy
★
LeetCode #45
Dota2 Senate
Medium
Strings
Queue
Greedy
★
LeetCode #649
Edit Distance
Medium
Strings
Dynamic Programming
Dynamic Programming
★
LeetCode #72
Evaluate Division
Medium
Hash Tables
Graphs
BFS (Breadth-First Search)
DFS (Depth-First Search)
Union Find
★
LeetCode #399
Evaluate Reverse Polish Notation
Medium
Arrays
Stack
Math
Monotonic Stack
★
LeetCode #150
Find K Closest Elements
Medium
Arrays
Binary Search
Two Pointers
Binary Search
★
Two Pointers
LeetCode #658
Find Minimum in Rotated Sorted Array
Medium
Arrays
Binary Search
Binary Search
★
LeetCode #153
Find the Duplicate Number
Medium
Arrays
Two Pointers
Fast & Slow Pointers
Binary Search
★
LeetCode #287
4Sum
Medium
Sorting
Arrays
Two Pointers
Two Pointers
★
LeetCode #18
Gas Station
Medium
Arrays
Greedy
★
LeetCode #134
Generate Parentheses
Medium
Strings
Recursion
Backtracking
★
LeetCode #22
Group Anagrams
Medium
Sorting
Hash Tables
Strings
Hashing
★
LeetCode #49
Hand of Straights
Medium
Sorting
Arrays
Hash Tables
Greedy
★
Heap / Priority Queue
LeetCode #846
House Robber II
Medium
Arrays
Dynamic Programming
Dynamic Programming
★
LeetCode #213
House Robber III
Medium
Trees
Dynamic Programming
DFS (Depth-First Search)
★
Dynamic Programming
LeetCode #337
House Robber
Medium
Arrays
Dynamic Programming
Dynamic Programming
★
LeetCode #198
Implement Trie (Prefix Tree)
Medium
Strings
Hash Tables
Trie
★
LeetCode #208