LeetCode

LeetCode Algorithm

LeetCode problem solutions using Python

#	Title	Solution	Difficulty
1	Two Sum	Python	⚡
2	Add Two Numbers	Python	⚡ ⚡
3	Longest Substring Without Repeating Characters	Python	⚡ ⚡
4	Median of Two Sorted Arrays	Python	⚡ ⚡ ⚡
5	Longest Palindromic Substring	Python	⚡ ⚡
6	ZigZag Conversion	Python	⚡ ⚡
7	Reverse Integer	Python	⚡
8	String to Integer (atoi)	Python	⚡ ⚡
9	Palindrome Number	Python	⚡
13	Roman to Integer	Python	⚡
14	Longest Common Prefix	Python	⚡
20	Valid Parentheses	Python	⚡
21	Merge Two Sorted Lists	Python	⚡
26	Remove Duplicates from Sorted Array	Python	⚡
27	Remove Element	Python	⚡
28	Implement strStr()	Python	⚡
35	Search Insert position	Python	⚡
53	Maximum Subarray	Python	⚡
58	Length of Last Word	Python	⚡
66	Plus One	Python	⚡
67	Add Binary	Python	⚡
69	Sqrt(x)	Python	⚡
70	Climbing Stairs	Python	⚡
83	Remove Duplicates from Sorted List	Python	⚡
88	Merge Sorted Array	Python	⚡
94	Binary Tree Inorder Traversal	Python	⚡
100	Same Tree	Python	⚡
101	Symmetric Tree	Python	⚡
104	Maximum Depth of Binary Tree	Python	⚡
108	Convert Sorted Array to Binary Search Tree	Python	⚡
110	Balanced Binary Tree	Python	⚡
111	Minimum Depth of Binary Tree	Python	⚡
112	Path Sum	Python	⚡
118	Pascal's Triangle	Python	⚡
119	Pascal's Triangle II	Python	⚡
121	Best Time to Buy and Sell Stock	Python	⚡
122	Best Time to Buy and Sell Stock II	Python	⚡
125	Valid Palindrome	Python	⚡
136	Single Number	Python	⚡
141	Linked List Cycle	Python	⚡
144	Binary Tree Preorder Traversal	Python	⚡
145	Binary Tree Postorder Traversal	Python	⚡
155	Min Stack	Python	⚡
160	Intersection of Two Linked Lists	Python	⚡
167	Two Sum II - Input array is sorted	Python	⚡
168	Excel Sheet Column Title	Python	⚡
171	Excel Sheet Column Number	Python	⚡
172	Factorial Trailing Zeroes	Python	⚡
190	Reverse Bits	Python	⚡
191	Number of 1 Bits	Python	⚡
202	Happy Number	Python	⚡
203	Remove Linked List Elements	Python	⚡
204	Count Primes	Python	⚡
205	Isomorphic Strings	Python	⚡
206	Reverse Linked List	Python	⚡
217	Contains Duplicate	Python	⚡
219	Contains Duplicate II	Python	⚡
225	Implement Stack using Queues	Python	⚡
226	Invert Binary Tree	Python	⚡
228	Summary Ranges	Python	⚡
231	Power of Two	Python	⚡
232	Implement Queue using Stacks	Python	⚡
234	Palindrome Linked List	Python	⚡
235	Lowest Common Ancestor of a Binary Search Tree	Python	⚡
257	Binary Tree Paths	Python	⚡
258	Add Digits	Python	⚡
263	Ugly Number	Python	⚡
268	Missing Number	Python	⚡
278	First Bad Version	Python	⚡
283	Move Zeroes	Python	⚡
290	Word Pattern	Python	⚡
292	Nim Game	Python	⚡
303	Range Sum Query - Immutable	Python	⚡
326	Power of Three	Python	⚡
338	Counting Bits	Python	⚡
342	Power of Four	Python	⚡
344	Reverse String	Python	⚡
345	Reverse Vowels of a String	Python	⚡
349	Intersection of Two Arrays	Python	⚡
350	Intersection of Two Arrays II	Python	⚡
367	Valid Perfect Square	Python	⚡
374	Guess Number Higher or Lower	Python	⚡
383	Ransom Note	Python	⚡
387	First Unique Character in a String	Python	⚡
389	Find the Difference	Python	⚡
392	Is Subsequence	Python	⚡
401	Binary Watch	Python	⚡
404	Sum of Left Leaves	Python	⚡
405	Convert a Number to Hexadecimal	Python	⚡
409	Longest Palindrome	Python	⚡
412	Fizz Buzz	Python	⚡
414	Third Maximum Number	Python	⚡
415	Add Strings	Python	⚡
434	Number of Segments in a String	Python	⚡
441	Arranging Coins	Python	⚡
448	Find All Numbers Disappeared in an Array	Python	⚡
453	Minimum Moves to Equal Array Elements	Python	⚡
455	Assign Cookies	Python	⚡
459	Repeated Substring Pattern	Python	⚡
461	Hamming Distance	Python	⚡
463	Island Perimeter	Python	⚡
476	Number Complement	Python	⚡
482	License Key Formatting	Python	⚡
485	Max Consecutive Ones	Python	⚡
492	Construct the Rectangle	Python	⚡
495	Teemo Attacking	Python	⚡
496	Next Greater Element I	Python	⚡
500	Keyboard Row	Python	⚡
501	Find Mode in Binary Search Tree	Python	⚡
504	Base 7	Python	⚡
506	Relative Ranks	Python	⚡
507	Perfect Number	Python	⚡
509	Fibonacci Number	Python	⚡
771	Jewels and Stones	Python	⚡
1108	Defanging an IP Address	Python	⚡
1290	Convert Binary Number in a Linked List to Integer	Python	⚡
1678	Goal Parser Interpretation	Python	⚡
1689	Partitioning Into Minimum Number Of Deci-Binary Numbers	Python	⚡ ⚡
2011	Final Value of Variable After Performing Operations	Python	⚡
2114	Maximum Number of Words Found in Sentences	Python	⚡
2125	Number of Laser Beams in a Bank	Python	⚡ ⚡
2391	Minimum Amount of Time to Collect Garbage	Python	⚡ ⚡
2942	Find Words Containing Character	Python	⚡