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209 Commits
1-Two-Sum.py
1-Two-Sum.py
 
 
10- Regular Expression Matching.java
10- Regular Expression Matching.java
 
 
1007-Minimum-Domino-Rotations-For-Equal-Row.py
1007-Minimum-Domino-Rotations-For-Equal-Row.py
 
 
102-Binary-Tree-Level-Order-Traversal.py
102-Binary-Tree-Level-Order-Traversal.py
 
 
102_binary_level_order_traversal.cpp
102_binary_level_order_traversal.cpp
 
 
106-Construct-Binary-Tree-From-Inorder-and-postorder-Traversal.java
106-Construct-Binary-Tree-From-Inorder-and-postorder-Traversal.java
 
 
1071-Greatest-common-divisor-of-strings.java
1071-Greatest-common-divisor-of-strings.java
 
 
10_regex_matching.cpp
10_regex_matching.cpp
 
 
11-Container_with_most_water.java
11-Container_with_most_water.java
 
 
11.container_with_most_water.java
11.container_with_most_water.java
 
 
118-Pascal-Triangle.cpp
118-Pascal-Triangle.cpp
 
 
118-Pascals-Triangle.py
118-Pascals-Triangle.py
 
 
121-Best-Time-To-Buy.py
121-Best-Time-To-Buy.py
 
 
121_buy_sell_stocks.cpp
121_buy_sell_stocks.cpp
 
 
125_valid_palindrome.java
125_valid_palindrome.java
 
 
129-Sum_root_to_leaf_numbers.cpp
129-Sum_root_to_leaf_numbers.cpp
 
 
139-Word-Break.py
139-Word-Break.py
 
 
141-Linked-List-Cycle.py
141-Linked-List-Cycle.py
 
 
142-Linked-List-Cycle-2.java
142-Linked-List-Cycle-2.java
 
 
144-Binary-tree-Preorder.py
144-Binary-tree-Preorder.py
 
 
145-Binary-tree-postorder.py
145-Binary-tree-postorder.py
 
 
1480-Running_Sum_of_1d_Array.cpp
1480-Running_Sum_of_1d_Array.cpp
 
 
1480.cpp
1480.cpp
 
 
15-3sum.py
15-3sum.py
 
 
152_Maximum_Product_Subarray.java
152_Maximum_Product_Subarray.java
 
 
153-Finding-Min-in-Rotated-Arr.py
153-Finding-Min-in-Rotated-Arr.py
 
 
153_Find_Minimum_in_Rotated_Sorted_Array.java
153_Find_Minimum_in_Rotated_Sorted_Array.java
 
 
15_3sum.java
15_3sum.java
 
 
162-Find-Peak-Element.py
162-Find-Peak-Element.py
 
 
1662-check-if-strings-are-equivalent.java
1662-check-if-strings-are-equivalent.java
 
 
167-Two-Sum-2.py
167-Two-Sum-2.py
 
 
167_two_sum_2.cpp
167_two_sum_2.cpp
 
 
168_Excel_sheet_col_title.py
168_Excel_sheet_col_title.py
 
 
169 - Majority Element.java
169 - Majority Element.java
 
 
169-Majority_Element.py
169-Majority_Element.py
 
 
169-majority-element.java
169-majority-element.java
 
 
1704-determine-if-string-halves-are-equal.java
1704-determine-if-string-halves-are-equal.java
 
 
17_Letter_Combinations_of_a_Phone_Number.py
17_Letter_Combinations_of_a_Phone_Number.py
 
 
17_letter_combinations.py
17_letter_combinations.py
 
 
189-Rotate-Array.py
189-Rotate-Array.py
 
 
19-delete-nth-node-end.py
19-delete-nth-node-end.py
 
 
190_reverse_bits.java
190_reverse_bits.java
 
 
191-Number-of-1-bits.java
191-Number-of-1-bits.java
 
 
191_Number_of_1_Bits.java
191_Number_of_1_Bits.java
 
 
2-Add-Two-Numbers.py
2-Add-Two-Numbers.py
 
 
20-Valid-parentheses.py
20-Valid-parentheses.py
 
 
200-Number_of_Islands.java
200-Number_of_Islands.java
 
 
203-remove-link-List-Element.py
203-remove-link-List-Element.py
 
 
205-Isomorphic-Strings.cpp
205-Isomorphic-Strings.cpp
 
 
205-Isomorphic-Strings.py
205-Isomorphic-Strings.py
 
 
206-Reverse-Linked-list.py
206-Reverse-Linked-list.py
 
 
21-Merge-Two-Sorted-Lists.py
21-Merge-Two-Sorted-Lists.py
 
 
215-Kth-Largest-element.py
215-Kth-Largest-element.py
 
 
217-Contains-Duplicate.py
217-Contains-Duplicate.py
 
 
2187-Minimum_Time_to_Complete_Trips.cpp
2187-Minimum_Time_to_Complete_Trips.cpp
 
 
225_implement_stack_using_queues.cpp
225_implement_stack_using_queues.cpp
 
 
226_invert_binary_tree_rec.cpp
226_invert_binary_tree_rec.cpp
 
 
229- Majority Element II.java
229- Majority Element II.java
 
 
231-Power-of-Two.cpp
231-Power-of-Two.cpp
 
 
232-Queue-Using-Stack.py
232-Queue-Using-Stack.py
 
 
232_implement_queue_using_stacks.cpp
232_implement_queue_using_stacks.cpp
 
 
239_sliding_window_max.py
239_sliding_window_max.py
 
 
242-Valid-Anagram.py
242-Valid-Anagram.py
 
 
2444-Count-Subarrays-with-fixed-bounds.cpp
2444-Count-Subarrays-with-fixed-bounds.cpp
 
 
266_invert_binary_tree_loop.cpp
266_invert_binary_tree_loop.cpp
 
 
268_Missing_Number.java
268_Missing_Number.java
 
 
27-Remove-Element.py
27-Remove-Element.py
 
 
27-remove-element.java
27-remove-element.java
 
 
2778_Sum_of_Squares_of_Special_Elements.java
2778_Sum_of_Squares_of_Special_Elements.java
 
 
278-First-bad-version.py
278-First-bad-version.py
 
 
2811_Check_if_it_is_Possible_to_Split_Array.py
2811_Check_if_it_is_Possible_to_Split_Array.py
 
 
283-Move-Zeros.java
283-Move-Zeros.java
 
 
283_move_zeroes.java
283_move_zeroes.java
 
 
2864-Maximum-Odd-Binary-Number.cpp
2864-Maximum-Odd-Binary-Number.cpp
 
 
3-Longest-Substring.py
3-Longest-Substring.py
 
 
322_COin_Change.java
322_COin_Change.java
 
 
322_Coin_Change.java
322_Coin_Change.java
 
 
33-search-in-rotated-sorted-arr.py
33-search-in-rotated-sorted-arr.py
 
 
338_Counting_Bits.java
338_Counting_Bits.java
 
 
33_Search_in_Rotated_Sorted_Array.java
33_Search_in_Rotated_Sorted_Array.java
 
 
33_Search_in_rotated_array.py
33_Search_in_rotated_array.py
 
 
34-First-last-in-sorted-array.java
34-First-last-in-sorted-array.java
 
 
344-Reverse-String.py
344-Reverse-String.py
 
 
35-search-insert-position.py
35-search-insert-position.py
 
 
350-Intersection-of-Two-Arrays.py
350-Intersection-of-Two-Arrays.py
 
 
36-Validate-Sudoku.py
36-Validate-Sudoku.py
 
 
37_Sum_of_Two_Integers.java
37_Sum_of_Two_Integers.java
 
 
383-Ransom-Note.py
383-Ransom-Note.py
 
 
387-First-Unique-Character.py
387-First-Unique-Character.py
 
 
39-Combination_Sum.cpp
39-Combination_Sum.cpp
 
 
390_elimination_game.cpp
390_elimination_game.cpp
 
 
392-Is-Subsequence.cpp
392-Is-Subsequence.cpp
 
 
4-Median-of-arrays.py
4-Median-of-arrays.py
 
 
46-Permutations.java
46-Permutations.java
 
 
5-Longest-Palindromic-String.py
5-Longest-Palindromic-String.py
 
 
50_pow_x_n.java
50_pow_x_n.java
 
 
513_Bottom_left_leaf.cpp
513_Bottom_left_leaf.cpp
 
 
53-Maximum-Subarray.py
53-Maximum-Subarray.py
 
 
557-Reverse-String-in-word.java
557-Reverse-String-in-word.java
 
 
566-Reshape-The-Matrix.py
566-Reshape-The-Matrix.py
 
 

Repository files navigation

leetcode

This repository is a collection of all the leetcode challenges others have contributes and I did.

File Structure:

leetcode
├── 1. Two Sum (Easy)
├── 2. Add Two Numbers (Medium)
├── 3. Longest Substring Without Repeating Characters (Medium)
├── 4. Median of Two Sorted Arrays (Hard)
├── 5. Longest Palindromic String (Medium)
├── 6. ZigZag Conversion (Medium)
├── 11. Container with Most Water (Medium)
├── 19. Remove Nth Node From End of List (Medium)
├── 20. Valid Parentheses (Easy)
├── 21. Merge Two Sorted Lists (Easy)
├── 27. Remove Element (Easy)
├── 35. Search Insert Position (Easy)
├── 36. Validate Sudoku (Medium)
├── 39. Combination Sum (Medium) 
├── 53. Maximum SubArray (Easy)
├── 66. Plus One (Easy)
├── 74. Search A 2D Matrix (Medium)
├── 80. Remove Duplicates from Sorted Array II
├── 83. Remove Duplicates from Sorted Lists (Easy)
├── 88. Merge Sorted Arrays (Easy)
├── 93. Binary Tree InOrder Traversal (Easy)
├── 102. Binary Tree Level Order Traversal (Medium)
├── 118. Pascal's Triangle (Easy)
├── 121. Best Time to Buy and Sell Stock (Easy)
├── 141. Linked List Cycle (Easy)
├── 144. Binary Tree PreOrder Traversal (Easy)
├── 145. Binary Tree PostOrder Traversal (Easy)
├── 167. Two Sum II (Easy)
├── 169. Majority Element (Easy)
├── 189. Rotate Array (Medium)
├── 191. Number of 1 Bits (Easy)
├── 200. Number of Islands (Medium)
├── 203. Remove Linked List Elements (Easy)
├── 205. Isomorphic Strings (Easy)
├── 206. Reverse Linked List (Easy)
├── 217. Contains Duplicate (Easy)
├── 229. Majority Element II (Easy)
├── 231. Power of Two (Easy)
├── 232. Implement Queue Using Stacks (Easy)
├── 242. Valid Anagram (Easy)
├── 278. First Bad Version (Easy)
├── 283. Move Zeroes (Easy)
├── 344. Reverse String (Easy)
├── 350. Intersection of Two Arrays II (Easy)
├── 383. Ransom Note (Easy)
├── 387. First Unique Character in a String (Easy)
├── 392. Is Subsequence (Easy)
├── 557. Reverse Words in a String III (Easy)
├── 566. Reshape the Matrix (Easy)
├── 567. Permutation in String (Medium)
├── 617. Merge Two Binary Trees (Easy)
├── 695. Max Area of island (Medium)
├── 704. Binary Search (Easy)
├── 724. Find Pivot Index (Easy)
├── 733. Flood Fill (Easy)
├── 875. Koko Loves Bananas (Medium)
├── 876. Middle Of The Linked List (Easy)
├── 977. Sqares of a Sorted Array (Easy)
├── 1007. Minimum Domino Rotations For Equal Row (Medium)
├── 1480. Running Sum of 1D Array (Easy)
└── 2444. Count Subarrays With Fixed Bounds (Hard)

Contribution Guidelines:

Any of the following languages are accepted in the pull request:

  • Java
  • Python
  • CPP
  • Rust

About

A collection of my leetcode solutions.

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leetcode data-structures

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