tech-cow/leetcode

Day 5. 02/12/20

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Leetcode

  • 65. Valid Number
  • 314 Binary Tree Vertical Order Traversal | O(N) Time
  • 304 Range Sum Query 2D - Immutable | What about Mutable?
  • 438 Find All Anagrams in a String

Not Leetcode

Re-appearance + High Frequently Asked:

23 | Merge k Sorted Lists (x2)
278 | First Bad Version (x2)
301 | Remove Invalid Parentheses (x2)

301: return 1 valid solution

  1. Subarray Sum Equals K (x2)
    Add binary (x2)

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常准时打电话过来 看名字是白人小哥 上来就粘题 leetcode636 做完后会问怎么测试 会问用到的数