Array and Strings
Array and String type of questions were asked in interviews frequently. You will most likely encounter one during your interviews.
We recommend: Group Anagrams, Longest Substring Without Repeating Characters, Longest Palindromic Substring and Missing Ranges.
3Sum
Set Matrix Zeroes
Group Anagrams
Longest Substring Without Repeating Characters
Longest Palindromic Substring
Increasing Triplet Subsequence
Missing Ranges
leetcode.com/problems/3sum/
leetcode.com/problems/set-matrix-zeroes/
leetcode.com/problems/group-anagrams/
leetcode.com/problems/longest-substring-without-repeating-characters/
leetcode.com/problems/longest-palindromic-substring/
leetcode.com/problems/increasing-triplet-subsequence
leetcode.com/problems/missing-ranges/