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Coding Tests · cho.sh

Coding Tests

Coding Tests

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Project

Useful Links

Real Exams
Real Interviews

Leetcode 75

Leetcode Grind 75 is a collection of coding test practice sets. It aims to cover all major topics in programming exams in 8 weeks.
Will use Python (main language) and C++ (supplementary language)
Link

Data Structures

QuickSelect TODO
Trie TODO

Stage 1

Backlinks31

230209 230130 230129 230128 221203 221128 221121 221024 221023 221015 Leetcode 220930 220926 220925 220924 220922 220921 220920 220911 220910 220907 220905 220904 220830 220827 220826 220726 220713 220710 220702 220606

Comments

0020 Valid Parentheses

0021 Merge Two Sorted Lists

0121 Best Time to Buy and Sell Stock

0125 Valid Palindrome

0226 Invert Binary Tree

0242 Valid Anagram

0704 Binary Search

0733 Flood Fill

0053 Maximum Subarray

0235 LCA of a Binary Search Tree

0110 Balanced Binary Tree

0141 Linked List Cycle

Stage 2

0232 Implement Queue using Stacks
0278 First Bad Version
0383 Ransom Note
0070 Climbing Stairs
0409 Longest Palindrome
0206 Reverse Linked List
0169 Majority Element
0067 Add Binary
0543 Diameter of Binary Tree
0876 Middle of the Linked List
0104 Maximum Depth of Binary Tree
0217 Contains Duplicate

Stage 3

0057 Insert Interval
0542 01 Matrix
0973 K Closest Points to Origin
0003 Longest Substring Without Repeating Characters
0015 3Sum
Binary Tree Level Order Traversal
Clone Graph
Evaluate Reverse Polish Notation

Stage 4

Course Schedule
Implement Trie (Prefix Tree)
Coin Change
Product of Array Except Self
Min Stack
Validate Binary Search Tree
Number of Islands
Rotting Oranges

Stage 5

Search in Rotated Sorted Array
Combination Sum
Permutations
Merge Intervals
Lowest Common Ancestor of a Binary Tree
Time Based Key-Value Store
Accounts Merge
Sort Colors

Stage 6

Word Break
Partition Equal Subset Sum
String to Integer (atoi)
Spiral Matrix
Subsets
Binary Tree Right Side View
Longest Palindromic Substring
Unique Paths
Construct Binary Tree from Preorder and Inorder Traversal

Stage 7

Container With Most Water
Letter Combinations of a Phone Number
0079 Word Search
Find All Anagrams in a String
Minimum Height Trees
Task Scheduler
LRU Cache

Stage 8

Kth Smallest Element in a BST
Minimum Window Substring
Serialize and Deserialize Binary Tree
Trapping Rain Water
Find Median from Data Stream
Word Ladder
Basic Calculator
Maximum Profit in Job Scheduling
Merge k Sorted Lists
Largest Rectangle in Histogram

Additional

1448 Count Good Nodes in Binary Tree
0002 Add Two Numbers
0199 Binary Tree Right Side View
1046 Last Stone Weight
0215 Kth Largest Element in an Array TODO
0079 Word Search
1290 Convert Binary Number in a Linked List to Integer
0059 Spiral Matrix II

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