Catalog:[骨骼清奇]LC 692 Top K Frequent Words[骨骼清奇]LC 347 Top K Frequent Element[Uber]414Th...
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Catalog:[骨骼清奇]LC 692 Top K Frequent Words[骨骼清奇]LC 347 Top K Frequent Element[Uber]414Th...
BST: all left <= n < all right How to determine if a binary tree is height-balanced?An ...
Catalog:[Uber] LC 49 Group Anagram [Uber] LC 49 Group Anagram把相同字母排列不同的单词放在一起，返回list of...
[G]带expiration的hashmap,实现add_task, get_task(if expired, delete)和clean_up如果expiration对于所...
[Uber]LC 34 Find First and Last Position of Element in Sorted Array找一个target 在排序数组中出现多少...
骨骼清奇：LC 394 Decode String LC 844 Backspace String CompareLC 341 Flatten Nested List ...
[骨骼清奇]n-array tree, 给一个node 算出包括这个node在内的所有child的sum[骨骼清奇]n-array tree，给一个node 打印出从这nod...
Catalog:LC 745 [Prefix and Suffix Search]LC 676 [Implement Magic Dictionary]LC 208 Impl...
[Uber]Trapping rain water [基本功]将arr左侧分为小于等于pv=arr[0]，右侧为大于pv！ [蝈蝈电面]LC 31 Next Permutat...
Notes: Implement DFS 的时候，有几种情况.（1）在条件满足的base case下return 1，这样层层收集起来，也可以在那里update全局变量，比如...
Catalog:LC 68 Text Justification[GoogleCall] LC 418 Sentence Screen Fitting LC 68 Tex...
find kth smallest element in an unsorted array问了链表，一个三连环的题目；又问了一个双数组，双对冲指针的题目。(他们组做的是分布...
Catalog:LC 857 Minimum Cost to Hire K Workers LC 857 Minimum Cost to Hire K WorkersOur ...
Catalog:LC 855 Exam Room Notes:When you sort a dictionary, you are sorting based on key...
Catalog:LC 890 Find and Replace PatternLC 843 Guess the WordLC 299 Bulls and CowsLC 676...
骨骼清奇:LC 62LC 337 House Robber III LC 486 Predict the Winner LC 312 Burst Balloons ...
LC 849 Maximize Distance to Closest PersonLC 334 Increasing Triplet Subsequence LC 215...
Catalog:LC 三九九 Evaluate DivisionLC 六八四 六八五及其变种（Tree删除额外边）LC 803 Bricks Falling When Hit...
Database for airport Airlines table: IDs and names of the airlines Flight table: trip (...
Most mutual exclusion and synchronization mechanisms use hardware atomic operations. Ho...