leetcode-answers

Some of own LeetCode solutions, with comments detailing explanations on older commitments. Please note that a certain set of the files in this repo also includes solutions from others (I give credit to the original poster when applicable).

FYI: LeetCode is a platform for studying/improving one's skill at programming in general, competitive programming, programming interviewing, and general critical/mathematical/logical problem solving ability

Name		Name	Last commit message	Last commit date
array		array
dynamic_programming		dynamic_programming
linkedLists		linkedLists
math		math
search		search
sql		sql
strings		strings
trees		trees
1207-unique-number-of-occur.py		1207-unique-number-of-occur.py
121-best-time-to-buy-stock.py		121-best-time-to-buy-stock.py
122-best-time-to-buy-stock-2.py		122-best-time-to-buy-stock-2.py
1277-Count-Squares.py		1277-Count-Squares.py
1448-good-nodes.py		1448-good-nodes.py
1509-minimum-difference.py		1509-minimum-difference.py
152-Maximum-Product-Subarray.py		152-Maximum-Product-Subarray.py
153-Find-Minimum-in-Rotated-Sorted-Array.py		153-Find-Minimum-in-Rotated-Sorted-Array.py
200-Med-Num_Islands.py		200-Med-Num_Islands.py
238-Product-of-Array-Except-Self.py		238-Product-of-Array-Except-Self.py
27_remove_element.py		27_remove_element.py
412-fizz_buzz.py		412-fizz_buzz.py
509-Fibonacci-Number.py		509-Fibonacci-Number.py
575-distribute-candy.py		575-distribute-candy.py
62-unique-paths.py		62-unique-paths.py
65-valid_number.py		65-valid_number.py
680-valid-palindrome-2.py		680-valid-palindrome-2.py
78-subsets_superset.py		78-subsets_superset.py
LC-113_Path_Sum_II.py		LC-113_Path_Sum_II.py
LC-117_populating_next_right_pointers.py		LC-117_populating_next_right_pointers.py
LC-11_Container_With_Most_Water.py		LC-11_Container_With_Most_Water.py
LC-12-Integer_to_Roman.py		LC-12-Integer_to_Roman.py
LC-13-Roman_to_Integer.py		LC-13-Roman_to_Integer.py
LC-15_3Sum.py		LC-15_3Sum.py
LC-16-3Sum_Closest.py		LC-16-3Sum_Closest.py
LC-162_Find-Peak-Element.py		LC-162_Find-Peak-Element.py
LC-178_Rank-Scores.sql		LC-178_Rank-Scores.sql
LC-17_Letter_Combination_of_a_Phone_Number.py		LC-17_Letter_Combination_of_a_Phone_Number.py
LC-18_4Sum.py		LC-18_4Sum.py
LC-193_Valid-Phone-Numbers.sh		LC-193_Valid-Phone-Numbers.sh
LC-19_Remove_Nth_Node_From_End_Of_List.py		LC-19_Remove_Nth_Node_From_End_Of_List.py
LC-21_Merge_Two_Sorted_Lists.py		LC-21_Merge_Two_Sorted_Lists.py
LC-225_Implement-Stack-using-Queues.py		LC-225_Implement-Stack-using-Queues.py
LC-23_Merge_k_Sorted_Lists.py		LC-23_Merge_k_Sorted_Lists.py
LC-284_Peeking_Iterator.py		LC-284_Peeking_Iterator.py
LC-309__Best-time-to-buy-and-sel-stocks-with-cooldown.py		LC-309__Best-time-to-buy-and-sel-stocks-with-cooldown.py
LC-32_Longest_Valid_Parentheses.py		LC-32_Longest_Valid_Parentheses.py
LC-33_Search_in_Rotated_Sorted_Array.py		LC-33_Search_in_Rotated_Sorted_Array.py
LC-341_Flatten-Nested-List_Iterator.py		LC-341_Flatten-Nested-List_Iterator.py
LC-355_Design-Twitter.py		LC-355_Design-Twitter.py
LC-378_Kth-Smallest-Element-in-a-Sorted-Matrix.py		LC-378_Kth-Smallest-Element-in-a-Sorted-Matrix.py
LC-386_Lexicographical-Numbers.py		LC-386_Lexicographical-Numbers.py
LC-395_Longest-Substring-with-at-least-k-repeating-characters.py		LC-395_Longest-Substring-with-at-least-k-repeating-characters.py
LC-396_Rotate-Function.py		LC-396_Rotate-Function.py
LC-39_Combination_Sum.py		LC-39_Combination_Sum.py
LC-400_Nth-digit.py		LC-400_Nth-digit.py
LC-417_Pacific-Atlantic-Water-Flow.py		LC-417_Pacific-Atlantic-Water-Flow.py
LC-50_Pow_x_n.py		LC-50_Pow_x_n.py
LC-511_Game-Play-Analysis-1.md		LC-511_Game-Play-Analysis-1.md
LC-541_Reverse_String_II.py		LC-541_Reverse_String_II.py
LC-58_Length_of_Last_Word.py		LC-58_Length_of_Last_Word.py
LC-60_Permutation-Sequence.py		LC-60_Permutation-Sequence.py
LC-619_Biggest-Single-Number.sql		LC-619_Biggest-Single-Number.sql
LC-728_Self-Dividing-Numbers.py		LC-728_Self-Dividing-Numbers.py
LC-766_Toeplitz-Matrix.py		LC-766_Toeplitz-Matrix.py
LC-783_Minimum-Distance-Between-BST-Nodes.py		LC-783_Minimum-Distance-Between-BST-Nodes.py
LC-792_Number-of-Matching-Subsequences.py		LC-792_Number-of-Matching-Subsequences.py
LC-806_Number-of-lines-to-write-string.py		LC-806_Number-of-lines-to-write-string.py
LC-819_Most-Common-Word.py		LC-819_Most-Common-Word.py
LC-867_Transpose-Matrix.py		LC-867_Transpose-Matrix.py
README.md		README.md

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