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# LeetCode
### LeetCode Algorithm
| # | Title | Solution | Difficulty |
| ---- | ------------------------------------------------------------------------------------------------------------------------------- | ----------------- | ---------- |
| 1 | [Two Sum ](https://leetcode.com/problems/two-sum/ ) | [C ](./src/1.c ) | Easy |
| 2 | [Add Two Numbers ](https://leetcode.com/problems/add-two-numbers/ ) | [C ](./src/2.c ) | Medium |
| 3 | [Longest Substring Without Repeating Characters ](https://leetcode.com/problems/longest-substring-without-repeating-characters/ ) | [C ](./src/3.c ) | Medium |
| 4 | [Median of Two Sorted Arrays ](https://leetcode.com/problems/median-of-two-sorted-arrays/ ) | [C ](./src/4.c ) | Hard |
| 6 | [ZigZag conversion ](https://leetcode.com/problems/zigzag-conversion/ ) | [C ](./src/4.c ) | Medium |
| 7 | [Reverse Integer ](https://leetcode.com/problems/reverse-integer/ ) | [C ](./src/7.c ) | Easy |
| 8 | [String to Integer (atoi) ](https://leetcode.com/problems/string-to-integer-atoi ) | [C ](./src/8.c ) | Medium |
| 9 | [Palindrome Number ](https://leetcode.com/problems/palindrome-number/ ) | [C ](./src/9.c ) | Easy |
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| 10 | [Regular Expression Matching ](https://leetcode.com/problems/regular-expression-matching/ ) | [C ](./src/10.c ) | Hard |
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| 11 | [Container With Most Water ](https://leetcode.com/problems/container-with-most-water/ ) | [C ](./src/11.c ) | Medium |
| 12 | [Integer to Roman ](https://leetcode.com/problems/integer-to-roman ) | [C ](./src/12.c ) | Medium |
| 13 | [Roman to Integer ](https://leetcode.com/problems/roman-to-integer/ ) | [C ](./src/13.c ) | Easy |
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| 14 | [Max Consecutive Ones ](https://leetcode.com/problems/max-consecutive-ones/ ) | [C ](./src/14.c ) | Easy |
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| 20 | [Valid Parentheses ](https://leetcode.com/problems/valid-parentheses/ ) | [C ](./src/20.c ) | Easy |
| 21 | [Merge Two Sorted Lists ](https://leetcode.com/problems/merge-two-sorted-lists/ ) | [C ](./src/21.c ) | Easy |
| 24 | [Swap Nodes in Pairs ](https://leetcode.com/problems/swap-nodes-in-pairs/ ) | [C ](./src/24.c ) | Medium |
| 26 | [Remove Duplicates from Sorted Array ](https://leetcode.com/problems/remove-duplicates-from-sorted-array/ ) | [C ](./src/26.c ) | Easy |
| 27 | [Remove Element ](https://leetcode.com/problems/remove-element/ ) | [C ](./src/27.c ) | Easy |
| 28 | [Implement strStr() ](https://leetcode.com/problems/implement-strstr/ ) | [C ](./src/28.c ) | Easy |
| 29 | [Divide Two Integers ](https://leetcode.com/problems/divide-two-integers/ ) | [C ](./src/29.c ) | Medium |
| 35 | [Search Insert Position ](https://leetcode.com/problems/search-insert-position/ ) | [C ](./src/35.c ) | Easy |
| 38 | [Count and Say ](https://leetcode.com/problems/count-and-say/ ) | [C ](./src/38.c ) | Easy |
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| 42 | [Trapping Rain Water ](https://leetcode.com/problems/trapping-rain-water/ ) | [C ](./src/42.c ) | Hard |
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| 53 | [Maximum Subarray ](https://leetcode.com/problems/maximum-subarray/ ) | [C ](./src/53.c ) | Easy |
| 62 | [Unique Paths ](https://leetcode.com/problems/unique-paths/description/ ) | [C ](./src/62.c ) | Medium |
| 66 | [Plus One ](https://leetcode.com/problems/plus-one/ ) | [C ](./src/66.c ) | Easy |
| 82 | [Remove Duplicates from Sorted List II ](https://leetcode.com/problems/remove-duplicates-from-sorted-list-ii/ ) | [C ](./src/82.c ) | Medium |
| 83 | [Remove Duplicates from Sorted List ](https://leetcode.com/problems/remove-duplicates-from-sorted-list/ ) | [C ](./src/83.c ) | Easy |
| 94 | [Binary Tree Inorder Traversal ](https://leetcode.com/problems/binary-tree-inorder-traversal/ ) | [C ](./src/94.c ) | Medium |
| 101 | [Symmetric Tree ](https://leetcode.com/problems/symmetric-tree/ ) | [C ](./src/101.c ) | Easy |
| 104 | [Maximum Depth of Binary Tree ](https://leetcode.com/problems/maximum-depth-of-binary-tree/ ) | [C ](./src/104.c ) | Easy |
| 108 | [Convert Sorted Array to Binary Search Tree ](https://leetcode.com/problems/convert-sorted-array-to-binary-search-tree/ ) | [C ](./src/108.c ) | Easy |
| 109 | [Convert Sorted List to Binary Search Tree ](https://leetcode.com/problems/convert-sorted-list-to-binary-search-tree/ ) | [C ](./src/109.c ) | Medium |
| 110 | [Balanced Binary Tree ](https://leetcode.com/problems/balanced-binary-tree/ ) | [C ](./src/110.c ) | Easy |
| 112 | [Path Sum ](https://leetcode.com/problems/path-sum/ ) | [C ](./src/112.c ) | Easy |
| 118 | [Pascal's Triangle ](https://leetcode.com/problems/pascals-triangle/ ) | [C ](./src/118.c ) | Easy |
| 121 | [Best Time to Buy and Sell Stock ](https://leetcode.com/problems/best-time-to-buy-and-sell-stock/ ) | [C ](./src/121.c ) | Easy |
| 125 | [Valid Palindrome ](https://leetcode.com/problems/valid-palindrome/ ) | [C ](./src/125.c ) | Easy |
| 136 | [Single Number ](https://leetcode.com/problems/single-number/ ) | [C ](./src/136.c ) | Easy |
| 141 | [Linked List Cycle ](https://leetcode.com/problems/linked-list-cycle/ ) | [C ](./src/141.c ) | Easy |
| 142 | [Linked List Cycle II ](https://leetcode.com/problems/linked-list-cycle-ii/ ) | [C ](./src/142.c ) | Medium |
| 153 | [Find Minimum in Rotated Sorted Array ](https://leetcode.com/problems/find-minimum-in-rotated-sorted-array/ ) | [C ](./src/153.c ) | Medium |
| 160 | [Intersection of Two Linked Lists ](https://leetcode.com/problems/intersection-of-two-linked-lists/ ) | [C ](./src/160.c ) | Easy |
| 169 | [Majority Element ](https://leetcode.com/problems/majority-element/ ) | [C ](./src/169.c ) | Easy |
| 173 | [Binary Search Tree Iterator ](https://leetcode.com/problems/binary-search-tree-iterator/ ) | [C ](./src/173.c ) | Medium |
| 189 | [Rotate Array ](https://leetcode.com/problems/rotate-array ) | [C ](./src/189.c ) | Easy |
| 190 | [Reverse Bits ](https://leetcode.com/problems/reverse-bits/ ) | [C ](./src/190.c ) | Easy |
| 191 | [Number of 1 Bits ](https://leetcode.com/problems/number-of-1-bits/ ) | [C ](./src/191.c ) | Easy |
| 201 | [Bitwise AND of Numbers Range ](https://leetcode.com/problems/bitwise-and-of-numbers-range/ ) | [C ](./src/201.c ) | Medium |
| 203 | [Remove Linked List Elements ](https://leetcode.com/problems/remove-linked-list-elements/ ) | [C ](./src/203.c ) | Easy |
| 206 | [Reverse Linked List ](https://leetcode.com/problems/reverse-linked-list/ ) | [C ](./src/206.c ) | Easy |
| 215 | [Kth Largest Element in an Array ](https://leetcode.com/problems/kth-largest-element-in-an-array/ ) | [C ](./src/215.c ) | Medium |
| 217 | [Contains Duplicate ](https://leetcode.com/problems/contains-duplicate/ ) | [C ](./src/217.c ) | Easy |
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| 223 | [Rectangle Area ](https://leetcode.com/problems/rectangle-area/ ) | [C ](./src/223.c ) | Medium |
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| 226 | [Invert Binary Tree ](https://leetcode.com/problems/invert-binary-tree/ ) | [C ](./src/226.c ) | Easy |
| 231 | [Power of Two ](https://leetcode.com/problems/power-of-two/ ) | [C ](./src/231.c ) | Easy |
| 234 | [Palindrome Linked List ](https://leetcode.com/problems/palindrome-linked-list/ ) | [C ](./src/234.c ) | Easy |
| 242 | [Valid Anagram ](https://leetcode.com/problems/valid-anagram/ ) | [C ](./src/242.c ) | Easy |
| 268 | [Missing Number ](https://leetcode.com/problems/missing-number/ ) | [C ](./src/268.c ) | Easy |
| 278 | [First Bad Version ](https://leetcode.com/problems/first-bad-version/ ) | [C ](./src/278.c ) | Easy |
| 283 | [Move Zeroes ](https://leetcode.com/problems/move-zeroes/ ) | [C ](./src/283.c ) | Easy |
| 287 | [Find the Duplicate Number ](https://leetcode.com/problems/find-the-duplicate-number/ ) | [C ](./src/287.c ) | Medium |
| 344 | [Reverse String ](https://leetcode.com/problems/reverse-string/ ) | [C ](./src/344.c ) | Easy |
| 367 | [Valid Perfect Square ](https://leetcode.com/problems/valid-perfect-square/ ) | [C ](./src/367.c ) | Easy |
| 387 | [First Unique Character in a String ](https://leetcode.com/problems/first-unique-character-in-a-string/ ) | [C ](./src/387.c ) | Easy |
| 389 | [Find the Difference ](https://leetcode.com/problems/find-the-difference/ ) | [C ](./src/389.c ) | Easy |
| 404 | [Sum of Left Leaves ](https://leetcode.com/problems/sum-of-left-leaves/ ) | [C ](./src/404.c ) | Easy |
| 442 | [Find All Duplicates in an Array ](https://leetcode.com/problems/find-all-duplicates-in-an-array/ ) | [C ](./src/442.c ) | Medium |
| 461 | [Hamming Distance ](https://leetcode.com/problems/hamming-distance/ ) | [C ](./src/461.c ) | Easy |
| 476 | [Number Complement ](https://leetcode.com/problems/number-complement/ ) | [C ](./src/476.c ) | Easy |
| 509 | [Fibonacci Number ](https://leetcode.com/problems/fibonacci-number/ ) | [C ](./src/509.c ) | Easy |
| 520 | [Detect Capital ](https://leetcode.com/problems/detect-capital/ ) | [C ](./src/520.c ) | Easy |
| 561 | [Array Partition I ](https://leetcode.com/problems/array-partition-i/ ) | [C ](./src/561.c ) | Easy |
| 617 | [Merge Two Binary Trees ](https://leetcode.com/problems/merge-two-binary-trees/ ) | [C ](./src/617.c ) | Easy |
| 647 | [Palindromic Substring ](https://leetcode.com/problems/palindromic-substrings/ ) | [C ](./src/647.c ) | Medium |
| 674 | [Longest Continuous Increasing Subsequence ](https://leetcode.com/problems/longest-continuous-increasing-subsequence/ ) | [C ](./src/674.c ) | Easy |
| 700 | [Search in a Binary Search Tree ](https://leetcode.com/problems/search-in-a-binary-search-tree/ ) | [C ](./src/700.c ) | Easy |
| 701 | [Insert into a Binary Search Tree ](https://leetcode.com/problems/insert-into-a-binary-search-tree/ ) | [C ](./src/701.c ) | Medium |
| 704 | [Binary Search ](https://leetcode.com/problems/binary-search/ ) | [C ](./src/704.c ) | Easy |
| 709 | [To Lower Case ](https://leetcode.com/problems/to-lower-case/ ) | [C ](./src/709.c ) | Easy |
| 771 | [Jewels and Stones ](https://leetcode.com/problems/jewels-and-stones/ ) | [C ](./src/771.c ) | Easy |
| 852 | [Peak Index in a Mountain Array ](https://leetcode.com/problems/peak-index-in-a-mountain-array/ ) | [C ](./src/852.c ) | Easy |
| 876 | [Middle of the Linked List ](https://leetcode.com/problems/middle-of-the-linked-list/ ) | [C ](./src/876.c ) | Easy |
| 905 | [Sort Array By Parity ](https://leetcode.com/problems/sort-array-by-parity/ ) | [C ](./src/905.c ) | Easy |
| 917 | [Reverse Only Letters ](https://leetcode.com/problems/reverse-only-letters/ ) | [C ](./src/917.c ) | Easy |
| 938 | [Range Sum of BST ](https://leetcode.com/problems/range-sum-of-bst/ ) | [C ](./src/938.c ) | Easy |
| 965 | [Univalued Binary Tree ](https://leetcode.com/problems/univalued-binary-tree/ ) | [C ](./src/965.c ) | Easy |
| 977 | [Squares of a Sorted Array ](https://leetcode.com/problems/squares-of-a-sorted-array/ ) | [C ](./src/977.c ) | Easy |
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| 1009 | [Complement of Base 10 Integer ](https://leetcode.com/problems/complement-of-base-10-integer/ ) | [C ](./src/1009.c ) | Easy |
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| 1089 | [Duplicate Zeros ](https://leetcode.com/problems/duplicate-zeros/ ) | [C ](./src/1089.c ) | Easy |
| 1184 | [Distance Between Bus Stops ](https://leetcode.com/problems/distance-between-bus-stops/ ) | [C ](./src/1184.c ) | Easy |
| 1189 | [Maximum Number of Balloons ](https://leetcode.com/problems/maximum-number-of-balloons/ ) | [C ](./src/1189.c ) | Easy |
| 1207 | [Unique Number of Occurrences ](https://leetcode.com/problems/unique-number-of-occurrences/ ) | [C ](./src/1207.c ) | Easy |
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| 1524 | [Number of Sub-arrays With Odd Sum ](https://leetcode.com/problems/number-of-sub-arrays-with-odd-sum/ ) | [C ](./src/1524.c ) | Medium |
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| 1752 | [Check if Array Is Sorted and Rotated ](https://leetcode.com/problems/check-if-array-is-sorted-and-rotated/ ) | [C ](./src/1752.c ) | Easy |
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| 2130 | [Maximum Twin Sum of a Linked List ](https://leetcode.com/problems/maximum-twin-sum-of-a-linked-list/ ) | [C ](./src/2130.c ) | Medium |
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| 2304 | [Minimum Path Cost in a Grid ](https://leetcode.com/problems/minimum-path-cost-in-a-grid/ ) | [C ](./src/2304.c ) | Medium |
