在职刷题打卡记录

09/27/2021

121 - Best time to buy and sell stock
350 - Intersection of two arrays II
1876 - Substrings of size three with distinct characters

09/28/2021

188 - Pascal triangle
566 - Reshape the matrix
1913 - Maximum product difference between two pairs

09/29/2021

36 - Valid Sudoku
74 - Search a 2D matrix
387 - First unique character in a string

09/30/2021

141 - Linked list cycle
242 - Valid anagram
383 - Ransom note

10/01/2021

21 - Merge two sorted list
83 - Remove duplicates from sorted list
203 - Remove linked list elements
206 - Reverse linked list

10/02/2021

20 - Valid parentheses
189 - Rotate array
232 - Implement queue using stacks
977 - Squares of a sorted array

10/03/2021

283 - Move zeroes

10/04/2021

19 - Remove nth node from end of list
167 - Two sums II - input array is sorted
344 - Reverse string
557 - Reverse word s in a string III
876 - Middle of the linked list

10/05/2021

226 - Invert binary tree
733 - Flood fill

10/10/2021

70 - Climbing stairs
136 - Single number
509 - Fibonacci number
746 - Min cost climbing stairs
1137 - N-th tribonacci number