在职刷题打卡

6/5
LRUCache
Two Sum

6/6

• Longest Substring with At Most K Distinct Characters
• searched in rotated sorted array ||
• searched in rotated sorted array
• Non-overlapping Intervals
  

6/7

• 452        Minimum Number of Arrows to Burst Balloons
• 13        Roman to Integer
  

6/8

• 518        coin change2
• 469        Convex Polygon
• 257        Binary Tree Paths: Given a binary tree, return all root-to-leaf paths.
• 124        Given a non-empty binary tree, find the maximum path sum. Doesn't need to go through the root
• 103        Binary Tree Zigzag Level Order Traversal
• 101        Symmetric tree
• 344        Reverse String
• 268        Missing Number: Given an array containing n distinct numbers taken from 0, 1, 2, ..., n, find the one that is missing from the array
  

6/9

• word ladder II
• course scheduler II
  

6/10
trapping-rain-water

6/11
763        Partition Labels

6/12

• 909        Snakes and Ladders
• 380        Insert Delete GetRandom O(1)
• 144        Binary Tree Preorder Traversal
• 145        postorder traversal (no-recursive)
• 937        Reorder Log Files
  

6/13

• 34        Find First and Last Position of Element in Sorted Array
• 305        Number of Islands II
• 1026        Maximum Difference Between Node and Ancestor
  

6/14

• 312        Burst Balloons
• 236        Lowest Common Ancestor of a Binary Tree