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Tag: #hashmap

45 items with this tag.

Nov 02, 2024
242. valid anagram
- #hashmap
Nov 02, 2024
1. two sum
- #array
- #hashmap
Oct 30, 2024
2501. longest square streak in an array
Oct 29, 2024
632. smallest range covering elements from k lists
Oct 19, 2024
1391. check if there is a valid path in a grid
- #bfs
- #hashmap
Oct 19, 2024
1711. count good meals
- #hashmap
- #array
Oct 17, 2024
1497. check if array pairs are divisible by k
- #counting-sort
- #hashmap
Oct 12, 2024
218. the skyline problem
Oct 10, 2024
149. max points on a line
Oct 07, 2024
1146. snapshot array
Oct 05, 2024
1590. make sum divisible by p
Oct 03, 2024
554. brick wall
- #hashmap
Oct 03, 2024
930. binary subarrays with sum
Sep 21, 2024
1371. find the longest substring containing vowels in even counts
Sep 16, 2024
863. all nodes distance k in binary tree
Sep 14, 2024
438. find all anagrams in a string
- #sliding-window
- #hashmap
Sep 09, 2024
1424. diagonal traverse ii
- #hashmap
- #bfs
Sep 01, 2024
525. contiguous array
- #prefix-sums
- #hashmap
Sep 01, 2024
633. sum of square numbers
- #two-pointer
- #hashmap
Aug 31, 2024
128. longest consecutive sequence
- #union-find
- #hashmap
Aug 31, 2024
791. custom sort string
- #sorting
- #hashmap
Aug 30, 2024
133. clone graph
Aug 30, 2024
398. random pick index
- #reservoir-sampling
- #hashmap
Aug 30, 2024
523. continuous subarray sum
Aug 29, 2024
138. copy list with random pointer
- #linked-list
- #hashmap
Aug 28, 2024
560. subarray sum equals k
- #prefix-sums
- #hashmap
Aug 26, 2024
291. word pattern ii
- #backtracking
- #hashmap
Aug 23, 2024
710. random pick with blacklist
- #hashmap
- #array
Aug 18, 2024
146. lru cache
- #linked-list
- #hashmap
Aug 17, 2024
827. making a large island
- #dfs
- #hashmap
Aug 13, 2024
249. group shifted strings
- #hashmap
- #string
Aug 10, 2024
432. all o(1) data structure
- #linked-list
- #hashmap
Aug 10, 2024
76. minimum window substring
Aug 08, 2024
981. time based key-value store
- #hashmap
- #binary-search
Aug 06, 2024
37. sudoku solver
- #backtracking
- #hashmap
Aug 01, 2024
380. insert delete getrandom o(1)
- #hashmap
- #array
Jul 31, 2024
815. bus routes
Jul 10, 2024
314. binary tree vertical order traversal
- #bfs
- #hashmap
Jun 19, 2024
12. integer to roman
- #hashmap
May 20, 2024
496. next greater element i
- #monotonic-stack
- #hashmap
May 19, 2024
2402. meeting rooms iii
May 19, 2024
359. logger rate limiter
- #hashmap
Mar 20, 2024
23. merge k sorted lists
Mar 01, 2024
763. partition labels
Feb 24, 2024
49. group anagrams

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