Leet Code Practice

These are my solutions to LeetCode problems written in Elixir.

All solutions have a corresponding test in test/solutions/

Quick Start

git clone git@github.com:terenceponce/leetcode.git
cd leetcode
asdf install
mix test

Problems

Arrays & Hashing

Easy

• 1 - Two Sum
• 13 - Roman to Integer
• 169 - Majority Element
• 217 - Contains Duplicate
• 242 - Valid Anagram
• 1207 - Unique Number of Occurrences
• 1365 - How Many Numbers Are Smaller Than The Current Number
• 1512 - Number of Good Pairs
• 2068 - Check Whether Two Strings Are Almost Equivalent

Medium

• 49 - Group Anagrams

Two Pointers

Easy

• 125 - Valid Palindrome

Sliding Window

Easy

• 121 - Best Time to Buy and Sell Stock

Stack

Easy

• 20 - Valid Parentheses

Binary Search

Easy

• 704 - Binary Search

Linked List

Easy

• 21 - Merge Two Sorted Lists
• 206 - Reverse Linked List

Medium

• 2 - Add Two Numbers

Trees

Easy

• 100 - Same Tree
• 104 - Maximum Depth of Binary Tree
• 110 - Balanced Binary Tree
• 226 - Invert Binary Tree
• 543 - Diameter of Binary Tree
• 572 - Subtree of Another Tree