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Solutions to LeetCode Problems

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README.md
 
 

README.md

Solutions to LeetCode Problems

# Title
1 Two Sum
2 Add Two Numbers
3 Longest Substring Without Repeating Characters
7 Reverse Integer
9 Palindrome Number
13 Roman to Integer
14 Longest Common Prefix
20 Valid Parentheses
21 Merge Two Sorted Lists
26 Remove Duplicates from Sorted Array
27 Remove Element
28 Implement strStr()
33 Search in Rotated Sorted Array
35 Search Insert Position
38 Count and Say
41 First Missing Positive
49 Group Anagrams
53 Maximum Subarray
54 Spiral Matrix
55 Jump Game
58 Length of Last Word
64 Minimum Path Sum
66 Plus One
67 Add Binary
69 Sqrt(x)
70 Climbing Stairs
83 Remove Duplicates from Sorted List
88 Merge Sorted Array
94 Binary Tree Inorder Traversal
100 Same Tree
101 Symmetric Tree
102 Binary Tree Level Order Traversal
104 Maximum Depth of Binary Tree
105 Construct Binary Tree from Preorder and Inorder Traversal
106 Construct Binary Tree from Inorder and Postorder Traversal
107 Binary Tree Level Order Traversal II
108 Convert Sorted Array to Binary Search Tree
110 Balanced Binary Tree
111 Minimum Depth of Binary Tree
112 Path Sum
116 Populating Next Right Pointers in Each Node
118 Pascal's Triangle
119 Pascal's Triangle II
121 Best Time to Buy and Sell Stock
122 Best Time to Buy and Sell Stock II
124 Binary Tree Maximum Path Sum
125 Valid Palindrome
136 Single Number
141 Linked List Cycle
144 Binary Tree Preorder Traversal
145 Binary Tree Postorder Traversal
146 LRU Cache
155 Min Stack
153 Find Minimum in Rotated Sorted Array
160 Intersection of Two Linked Lists
167 Two Sum II - Input array is sorted
168 Excel Sheet Column Title
169 Majority Element
171 Excel Sheet Column Number
172 Factorial Trailing Zeroes
189 Rotate Array
190 Reverse Bits
191 Number of 1 Bits
198 House Robber
200 Number of Islands
201 Bitwise AND of Numbers Range
202 Happy Number
203 Remove Linked List Elements
204 Count Primes
205 Isomorphic Strings
206 Reverse Linked List
208 Implement Trie (Prefix Tree)
217 Contains Duplicate
219 Contains Duplicate II
221 Maximal Square
225 Implement Stack using Queues
226 Invert Binary Tree
230 Kth Smallest Element in a BST
231 Power of Two
232 Implement Queue using Stacks
234 Palindrome Linked List
235 Lowest Common Ancestor of a Binary Search Tree
237 Delete Node in a Linked List
238 Product of Array Except Self
242 Valid Anagram
257 Binary Tree Paths
258 Add Digits
263 Ugly Number
268 Missing Number
278 First Bad Version
283 Move Zeroes
290 Word Pattern
292 Nim Game
299 Bulls and Cows
303 Range Sum Query - Immutable
326 Power of Three
328 Odd Even Linked List
342 Power of Four
344 Reverse String
345 Reverse Vowels of a String
349 Intersection of Two Arrays
350 Intersection of Two Arrays II
367 Valid Perfect Square
383 Ransom Note
387 First Unique Character in a String
389 Find the Difference
394 Decode String
402 Remove K Digits
404 Sum of Left Leaves
412 Fizz Buzz
416 Partition Equal Subset Sum
438 Find All Anagrams in a String
451 Sort Characters By Frequency
476 Number Complement
485 Max Consecutive Ones
498 Diagonal Traverse
509 Fibonacci Number
520 Detect Capital
540 Single Element in a Sorted Array
543 Diameter of Binary Tree
560 Subarray Sum Equals K
567 Permutation in String
678 Valid Parenthesis String
700 Search in a Binary Search Tree
709 To Lower Case
724 Find Pivot Index
733 Flood Fill
747 Largest Number At Least Twice of Others
771 Jewels and Stones
836 Rectangle Overlap
844 Backspace String Compare
876 Middle of the Linked List
883 Projection Area of 3D Shapes
884 Uncommon Words from Two Sentences
901 Online Stock Span
905 Sort Array By Parity
912 Sort an Array
918 Maximum Sum Circular Subarray
935 Knight Dialer
977 Squares of a Sorted Array
984 String Without AAA or BBB
993 Cousins in Binary Tree
997 Find the Town Judge
1009 Complement of Base 10 Integer
1143 Longest Common Subsequence
1232 Check If It Is a Straight Line
1277 Count Square Submatrices with All Ones
1394 Find Lucky Integer in an Array
1426 Counting Elements
unknown Last Stone Weight
unknown Contiguous Array
unknown Perform String Shifts
unknown Leftmost Column with at Least a One
unknown Check If a String Is a Valid Sequence from Root to Leaves Path in a Binary Tree

Problems solved: 154

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Solutions to LeetCode Problems

leetcode.com/kantuni/

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