Leetcode 75 Study Plan

Done: 71 / 75

# (link to my code)	Done	Category	Name	Difficulty	Url
1768.	✅	Array / String	Merge Strings Alternately	Easy	link
1071.	✅	Array / String	Greatest Common Divisor of Strings	Easy	link
1431.	✅	Array / String	Kids With the Greatest Number of Candies	Easy	link
605.	✅	Array / String	Can Place Flowers	Easy	link
345.	✅	Array / String	Reverse Vowels of a String	Easy	link
151.	✅	Array / String	Reverse Words in a String	Medium	link
238.	✅	Array / String	Product of Array Except Self	Medium	link
334.	✅	Array / String	Increasing Triplet Subsequence	Medium	link
443.	✅	Array / String	String Compression	Medium	link
283.	✅	Two Pointers	Move Zeroes	Easy	link
392.	✅	Two Pointers	Is Subsequence	Easy	link
11.	✅	Two Pointers	Container With Most Water	Medium	link
1679.	✅	Two Pointers	Max Number of K-Sum Pairs	Medium	link
643.	✅	Sliding Window	Maximum Average Subarray I	Easy	link
1456.	✅	Sliding Window	Maximum Number of Vowels in a Substring of Given Length	Medium	link
1004.	✅	Sliding Window	Max Consecutive Ones III	Medium	link
1493.	✅	Sliding Window	Longest Subarray of 1's After Deleting One Element	Medium	link
1732.	✅	Prefix Sum	Find the Highest Altitude	Easy	link
724.	✅	Prefix Sum	Find Pivot Index	Easy	link
2215.	✅	Hash Map / Set	Find the Difference of Two Arrays	Easy	link
1207.	✅	Hash Map / Set	Unique Number of Occurrences	Easy	link
1657.	✅	Hash Map / Set	Determine if Two Strings Are Close	Medium	link
2352.	✅	Hash Map / Set	Equal Row and Column Pairs	Medium	link
2390.	✅	Stack	Removing Stars From a String	Medium	link
735.	✅	Stack	Asteroid Collision	Medium	link
394.	✅	Stack	Decode String	Medium	link
933.	✅	Queue	Number of Recent Calls	Easy	link
649.	✅	Queue	Dota2 Senate	Medium	link
2095.	✅	Linked List	Delete the Middle Node of a Linked List	Medium	link
328.	✅	Linked List	Odd Even Linked List	Medium	link
206.	✅	Linked List	Reverse Linked List	Easy	link
2130.	✅	Linked List	Maximum Twin Sum of a Linked List	Medium	link
104.	✅	Binary Tree - DFS	Maximum Depth of Binary Tree	Easy	link
872.	✅	Binary Tree - DFS	Leaf-Similar Trees	Easy	link
1448.	✅	Binary Tree - DFS	Count Good Nodes in Binary Tree	Medium	link
437.	✅	Binary Tree - DFS	Path Sum III	Medium	link
1372.	✅	Binary Tree - DFS	Longest ZigZag Path in a Binary Tree	Medium	link
236.	✅	Binary Tree - DFS	Lowest Common Ancestor of a Binary Tree	Medium	link
199.	✅	Binary Tree - BFS	Binary Tree Right Side View	Medium	link
1161.	✅	Binary Tree - BFS	Maximum Level Sum of a Binary Tree	Medium	link
700.	✅	Binary Tree - BFS	Search in a Binary Search Tree	Easy	link
450.	✅	Binary Tree - BFS	Delete Node in a BST	Medium	link
841.	✅	Graphs - DFS	Keys and Rooms	Medium	link
547.	✅	Graphs - DFS	Number of Provinces	Medium	link
399.	✅	Graphs - DFS	Evaluate Division	Medium	link
1466.	✅	Graphs - DFS	Reorder Routes to Make All Paths Lead to the City Zero	Medium	link
1926.	✅	Graphs - BFS	Nearest Exit from Entrance in Maze	Medium	link
994.	✅	Graphs - BFS	Rotting Oranges	Medium	link
215.	✅	Heap / Priority Queue	Kth Largest Element in an Array	Medium	link
2336.	✅	Heap / Priority Queue	Smallest Number in Infinite Set	Medium	link
2542.	✅	Heap / Priority Queue	Maximum Subsequence Score	Medium	link
2462.	✅	Heap / Priority Queue	Total Cost to Hire K Workers	Medium	link
374.	✅	Binary Search	Guess Number Higher or Lower	Easy	link
2300.	✅	Binary Search	Successful Pairs of Spells and Potions	Medium	link
162.	✅	Binary Search	Find Peak Element	Medium	link
875.	✅	Binary Search	Koko Eating Bananas	Medium	link
17.	✅	Backtracking	Letter Combinations of a Phone Number	Medium	link
216.	✅	Backtracking	Combination Sum III	Medium	link
1137.	✅	DP - 1D	N-th Tribonacci Number	Easy	link
746.	✅	DP - 1D	Min Cost Climbing Stairs	Easy	link
198.	✅	DP - 1D	House Robber	Medium	link
790.		DP - 1D	Domino and Tromino Tiling	Medium	link
62.	✅	DP - Multidimensional	Unique Paths	Medium	link
1143.	✅	DP - Multidimensional	Longest Common Subsequence	Medium	link
714.	✅	DP - Multidimensional	Best Time to Buy and Sell Stock with Transaction Fee	Medium	link
72.		DP - Multidimensional	Edit Distance	Medium	link
338.	✅	Bit Manipulation	Counting Bits	Easy	link
136.	✅	Bit Manipulation	Single Number	Easy	link
1318.	✅	Bit Manipulation	Minimum Flips to Make a OR b Equal to c	Medium	link
208.	✅	Trie	Implement Trie (Prefix Tree)	Medium	link
1268.	✅	Trie	Search Suggestions System	Medium	link
435.		Intervals	Non-overlapping Intervals	Medium	link
452.		Intervals	Minimum Number of Arrows to Burst Balloons	Medium	link
739.	✅	Monotonic Stack	Daily Temperatures	Medium	link
901.	✅	Monotonic Stack	Online Stock Span	Medium	link

How I created this table (mainly vim fu):

• Category, Name, Difficulty, Problem Numbers (in lc75nums.txt)
  • navigated to study plan website, clicked "Show Tags" checkbox
  • highlighted with mouse and copied entire tabular data
  • formatted in steps with vim find/replace + vim macros
    • could have used something like playwright to webscrape if wasn't a one off
  • Note: make_missing_prob_num_folders_and_files.py reads lc75num.txt to help automate creation of problem/test folders while prepopulating test_#.py and solution.py files with imports/class boilerplate (rather than writing them all 75 times over)
• Urls (in lc75urls.txt)
  • downloaded .html of "Leetcode 75 Study Plan" webpage
  • corrected formatting with VSCode's Shift-Alt-F
  • grepped for lines with "/editorial/" to find urls of problems
  • swapped out "editorial" (Solution url) for "description"
  • pasted urls into this .md with vim block mode
  • removed whitespace/dangling tags with vim regex
• Markdown Hyperlinks to code
  • vim macros FTW!