[刷题]磕盐外日常刷题记录

6/22
trapping rain water        Hard
spiral matrix        Medium
word ladder        Medium
BST iterator        Medium
course schedule II        Medium
basic calculator        Medium
number of distinct island        Medium
Snakes and Ladders        Medium
Prison Cells After N Days        Medium
Design Tic-Tac-Toe        Medium
bt zigzag order traversal        Medium
analyze user website visit pattern        Medium

6/28 疫情看上去真糟糕
Minimum Cost to Connect Sticks        Medium
Search Suggestions System        Medium
divide two int        Medium
next permutation        Medium
binary tree right side view        Medium
Add and Search Word        Medium
sparse matrix multiplicatoin        Medium
random pick index        Medium
Continuous Subarray Sum        Medium
exclusive time of function        Medium
Maximum Swap        Medium
Is Graph Bipartite        Medium

7/2
max Diff between Node and Ancestor
swap nodes in pairs
isValidSudoku
binary Tree Vertical Order Traversal
Interval List Intersections
vertical order traversal of binary tree
missing Element in Sorted Array
Leftmost Column with at Least a One
populate Next Right Ptrs in Each Node