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Showing 20 of 31 questions
3Sum With Multiplicity
Medium
Hash Tables
Arrays
Two Pointers
Counting / Bucket Sort
★
LeetCode #923
Adding Spaces to a String
Medium
Arrays
Two Pointers
Strings
Two Pointers
1
2
★
LeetCode #2109
Append Characters to String to Make Subsequence
Easy
Strings
Two Pointers
Two Pointers
★
Greedy
LeetCode #2486
Apply Operations to an Array
Easy
Arrays
Two Pointers
Two Pointers
★
LeetCode #2460
Assign Cookies
Easy
Arrays
Two Pointers
Sorting
Greedy
Two Pointers
★
LeetCode #455
Backspace String Compare
Easy
Strings
Stack
Two Pointers
Two Pointers
★
LeetCode #844
Bag of Tokens
Medium
Sorting
Arrays
Two Pointers
Two Pointers
★
Greedy
LeetCode #948
Boats to Save People
Medium
Arrays
Two Pointers
Sorting
Two Pointers
★
Greedy
LeetCode #881
Camelcase Matching
Medium
Strings
Arrays
Two Pointers
Two Pointers
★
LeetCode #1023
Container With Most Water
Medium
Arrays
Two Pointers
Two Pointers
★
Greedy
LeetCode #11
Find K Closest Elements
Medium
Arrays
Binary Search
Two Pointers
Binary Search
★
Two Pointers
LeetCode #658
Find the Duplicate Number
Medium
Arrays
Two Pointers
Fast & Slow Pointers
Binary Search
★
LeetCode #287
4Sum
Medium
Sorting
Arrays
Two Pointers
Two Pointers
★
LeetCode #18
Linked List Cycle
Easy
Two Pointers
Hash Tables
Linked Lists
Fast & Slow Pointers
★
LeetCode #141
Merge Sorted Array
Easy
Arrays
Two Pointers
Sorting
Two Pointers
★
LeetCode #88
Merge Strings Alternately
Easy
Strings
Two Pointers
Two Pointers
★
LeetCode #1768
Partition Labels
Medium
Hash Tables
Strings
Two Pointers
Greedy
Two Pointers
★
LeetCode #763
Permutation in String
Medium
Strings
Two Pointers
Hash Tables
Sliding Window
★
LeetCode #567
Remove Duplicates from Sorted Array
Easy
Arrays
Two Pointers
Two Pointers
★
LeetCode #26
Remove Element
Easy
Arrays
Two Pointers
Two Pointers
★
LeetCode #27