LeetCode

My Progress in LeetCode.
I will be adding 35 solutions every week on Sundays.

Press Control + F to search for anything you want.

Solutions

#	Solution	Topic	Difficulty
00001	Two Sum	Hashmap	Easy
00002	Add Two Numbers	Linked-List	Medium
00007	Reverse Integer	Math	Medium
00009	Palindrome Number	String	Easy
00010	Regular Expression Matching	Dynamic-Programming	Hard
00011	Container With Most Water	Two-Pointers	Medium
00014	Longest Common Prefix	String	Easy
00015	3Sum	Two-Pointers	Medium
00019	Remove Nth Node From End Of List	Linked-List	Medium
00020	Valid Parentheses	Stack	Easy
00021	Merge Two Sorted Lists	Linked-List	Easy
00026	Remove Duplicates From Sorted Array	Math	Easy
00027	Remove Element	Two-Pointers	Easy
00028	Find The Index Of The First Occurrence In A String	String	Easy
00035	Search Insert Position	Binary-Search	Easy
00042	Trapping Rain Water	Array	Hard
00057	Insert Interval	Array	Medium
00058	Length Of Last Word	String	Easy
00066	Plus One	Math	Easy
00069	Sqrtx	Binary-Search	Easy
00078	Subsets	Backtracking	Medium
00079	Word Search	Backtracking	Medium
00083	Remove Duplicates From Sorted List	Linked-List	Easy
00085	Maximal Rectangle	Stack	Hard
00094	Binary Tree Inorder Traversal	Tree	Easy
00098	Validate Binary Search Tree	Tree	Medium
00100	Same Tree	Tree	Easy
00125	Valid Palindrome	Two-Pointers	Easy
00129	Sum Root To Leaf Numbers	Tree	Medium
00136	Single Number	Bit-Hacks	Easy
00141	Linked List Cycle	Hashmap	Easy
00144	Binary Tree Preorder Traversal	Tree	Easy
00145	Binary Tree Postorder Traversal	Tree	Easy
00148	Sort List	Linked-List	Medium
00165	Compare Version Numbers	Two-Pointers	Medium
00167	Two Sum Ii Input Array Is Sorted	Two-Pointers	Medium
00190	Reverse Bits	Bit-Hacks	Easy
00191	Number Of 1 Bits	Bit-Hacks	Easy
00193	Valid Phone Numbers	Shell	Easy
00194	Transpose File	Shell	Easy
00195	Tenth Line	Shell	Easy
00202	Happy Number	Hashmap	Easy
00203	Remove Linked List Elements	Linked-List	Easy
00206	Reverse Linked List	Linked-List	Easy
00226	Invert Binary Tree	Tree	Easy
00231	Power Of Two	Bit-Hacks	Easy
00237	Delete Node In A Linked List	Linked-List	Medium
00238	Product Of Array Except Self	Prefix-Sum	Medium
00242	Valid Anagram	Hashmap	Easy
00268	Missing Number	Bit-Hacks	Easy
00338	Counting Bits	Bit-Hacks	Easy
00342	Power Of Four	Bit-Hacks	Easy
00344	Reverse String	String	Easy
00349	Intersection Of Two Arrays	Hashmap	Easy
00350	Intersection Of Two Arrays Ii	Hashmap	Easy
00367	Valid Perfect Square	Binary-Search	Easy
00383	Ransom Note	Hashmap	Easy
00387	First Unique Character In A String	Hashmap	Easy
00389	Find The Difference	Bit-Hacks	Easy
00404	Sum Of Left Leaves	Tree	Easy
00409	Longest Palindrome	Hashmap	Easy
00412	Fizz Buzz	Bit-Hacks	Easy
00448	Find All Numbers Disappeared In An Array	Array	Easy
00452	Minimum Number Of Arrows To Burst Balloons	Array	Medium
00461	Hamming Distance	Bit-Hacks	Easy
00506	Relative Ranks	Priority-Queue	Easy
00509	Fibonacci Number	Math	Easy
00525	Contiguous Array	Prefix-Sum	Medium
00543	Diameter Of Binary Tree	Tree	Easy
00623	Add One Row To Tree	Tree	Easy
00704	Binary Search	Binary-Search	Easy
00709	To Lower Case	Math	Easy
00771	Jewels And Stones	Priority-Queue	Easy
00791	Custom Sort String	Hashmap	Medium
00832	Flipping An Image	Array	Easy
00876	Middle Of The Linked List	Linked-List	Easy
00930	Binary Subarrays With Sum	Hashmap	Medium
00961	N Repeated Element In Size 2N Array	Hashmap	Easy
00977	Squares Of A Sorted Array	Two-Pointers	Easy
00979	Distribute Coins In Binary Tree	Tree	Medium
01002	Find Common Characters	Hashmap	Easy
01108	Defanging An Ip Address	String	Easy
01137	N Th Tribonacci Number	Memoization	Easy
01171	Remove Zero Sum Consecutive Nodes From Linked List	Hashmap	Medium
01281	Subtract The Product And Sum Of Digits Of An Integer	Math	Easy
01325	Delete Leaves With A Given Value	Tree	Medium
01422	Maximum Score After Splitting A String	Array	Easy
01431	Kids With The Greatest Number Of Candies	Array	Easy
01480	Running Sum Of 1D Array	Array	Easy
01486	Xor Operation In An Array	Bit-Hacks	Easy
01544	Make The String Great	Stack	Easy
01572	Matrix Diagonal Sum	Array	Easy
01614	Maximum Nesting Depth Of The Parentheses	String	Easy
01672	Richest Customer Wealth	Matrix	Easy
01887	Reduction Operations To Make The Array Elements Equal	Math	Medium
01929	Concatenation Of Array	Array	Easy
01930	Unique Length 3 Palindromic Subsequences	Hashmap	Medium
02000	Reverse Prefix Of Word	String	Easy
02011	Final Value Of Variable After Performing Operations	String	Easy
02073	Time Needed To Buy Tickets	Array	Easy
02109	Adding Spaces To A String	String	Medium
02215	Find The Difference Of Two Arrays	Hashmap	Easy
02235	Add Two Integers	Math	Easy
02236	Root Equals Sum Of Children	Tree	Easy
02248	Intersection Of Multiple Arrays	Hashmap	Easy
02270	Number Of Ways To Split Array	Prefix-Sum	Medium
02372	Largest Local Values In A Matrix	Array	Easy
02381	Shifting Letters Ii	Prefix-Sum	Medium
02413	Smallest Even Multiple	Number-Theory	Easy
02418	Sort The People	Hashmap	Easy
02441	Largest Positive Integer That Exists With Its Negative	Hashmap	Easy
02469	Convert The Temperature	Math	Easy
02485	Find The Pivot Integer	Math	Easy
02487	Remove Nodes From Linked List	Linked-List	Medium
02535	Difference Between Element Sum And Digit Sum Of An Array	Math	Easy
02540	Minimum Common Value	Two-Pointers	Easy
02558	Take Gifts From The Richest Pile	Priority-Queue	Easy
02559	Count Vowel Strings In Ranges	Prefix-Sum	Medium
02620	Counter	Typescript	Easy
02626	Array Reduce Transformation	Typescript	Easy
02629	Function Composition	Typescript	Easy
02634	Filter Elements From Array	Typescript	Easy
02635	Apply Transform Over Each Element In Array	Typescript	Easy
02665	Counter Ii	Typescript	Easy
02667	Create Hello World Function	Typescript	Easy
02704	To Be Or Not To Be	Typescript	Easy
02769	Find The Maximum Achievable Number	Math	Easy
02798	Number Of Employees Who Met The Target	Array	Easy
02810	Faulty Keyboard	String	Easy
02816	Double A Number Represented As A Linked List	Linked-List	Medium
02894	Divisible And Non Divisible Sums Difference	Math	Easy
02942	Find Words Containing Character	Array	Easy
03005	Count Elements With Maximum Frequency	Hashmap	Easy
03099	Harshad Number	Math	Easy
03110	Score Of A String	Array	Easy