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https://github.com/thomasrayner/leetcode-april30days

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Host: GitHub
URL: https://github.com/thomasrayner/leetcode-april30days
Owner: thomasrayner
Created: 2020-04-02T18:14:33.000Z (almost 5 years ago)
Default Branch: master
Last Pushed: 2020-04-30T20:17:23.000Z (over 4 years ago)
Last Synced: 2024-10-18T07:38:17.672Z (3 months ago)
Language: C#
Size: 62.5 KB
Stars: 1
Watchers: 1
Forks: 0
Open Issues: 0
Metadata Files:
- Readme: readme.md

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README

        # 30-Day LeetCoding Challenge

From [LeetCode](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge).

The description:

>Welcome to the 30-Day LeetCoding Challenge!

>With many of us around the world being encouraged to stay indoors and work from home, this is the perfect opportunity for you to focus on studying up for future code interviews. In order to help you stay focused, LeetCode is running the 30-Day LeetCoding Challenge for the month of April. A problem will appear here at midnight PDT each day, and you'll have 24 hours to solve it and submit it here on the Explore Card.

## Week 1

* Day 01 - [Single Number](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/528/week-1/3283/)

* Day 02 - [Happy Number](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/528/week-1/3284/)

* Day 03 - [Maximum Subarray](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/528/week-1/3285/)

* Day 04 - [Move Zeroes](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/528/week-1/3286/)

* Day 05 - [Best Time to Buy and Sell Stock II](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/528/week-1/3287/)

* Day 06 - [Group Anagrams](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/528/week-1/3288/)

* Day 07 - [Counting Elements](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/528/week-1/3289/)

## Week 2

* Day 08 - [Middle of Linked List](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/529/week-2/3290/)

* Day 09 - [Backspace String Compare](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/529/week-2/3291/)

* Day 10 - [Min Stack](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/529/week-2/3292/)

* Day 11 - [Diameter of Binary Tree](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/529/week-2/3293/)

* Day 12 - [Last Stone Weight](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/529/week-2/3297/)

* Day 13 - [Contiguous Array](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/529/week-2/3298/)

* Day 14 - [Perform String Shifts](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/529/week-2/3299/)

## Week 3

* Day 15 - [Product of Array Except Self](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/530/week-3/3300/)

* Day 16 - [Valid Parenthesis String](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/530/week-3/3301/)

* Day 17 - [Number of Islands](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/530/week-3/3302/)

* Day 18 - [Minimum Path Sum](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/530/week-3/3303/)

* Day 19 - [Search in Rotated Sorted Array](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/530/week-3/3304/)

* Day 20 - [Construct Binary Search Tree from Preorder Traversal](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/530/week-3/3305/)

* Day 21 - [Leftmost Column with at Least a One](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/530/week-3/3306/)

## Week 4

* Day 22 - [Subarray Sum Equals K](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/531/week-4/3307/)

* Day 23 - [Bitwise AND of Numbers Range](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/531/week-4/3308/)

* Day 24 - [LRU Cache](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/531/week-4/3309/)

* Day 25 - [Jump Game](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/531/week-4/3310/)

* Day 26 - [Longest Common Subsequence](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/531/week-4/3311/)

* Day 27 - [Maximal Square](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/531/week-4/3312/)

* Day 28 - [First Unique Number](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/531/week-4/3313/)

* Day 29 - [Binary Tree Maximum Sum Path](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/532/week-5/3314/)

* Day 30 - [Check If a String Is a Valid Sequence from Root to Leaves Path in a Binary Tree](https://leetcode.com/explore/challenge/card/30-day-leetcoding-challenge/532/week-5/3315/)