Practice

Neetcode 150, Blind 75, SDE Sheet.

Array

Two Sum. Majority Element. Contains Duplicate. Valid Anagram. Group Anagram. Top k frequent element. Encode and Decode String. Product of array except self. Valid Sudoku. Longest Consecutive Sequence. Insert Interval. Combination sum. Merge Interval. 4 sum. Sort Color. Set Matrix Zero. Pascal Triangle. Next Permutation. Kadane’s Algorithm. Sort an array 0, 1 and 2. Rotate Matrix. Merge Overlapping sub intervals. Merge two sorted array without extra space. Find the duplicate in an array with N+1

Two Pointer.

Valid Palindrome. Two sum 2 input array sorted. 3 sum. Container with most water. Trapping rain Water.

Sliding window.

Best Time To Buy and Sell Stock.

Longest Substring without repeating character. Longest repeating character replacement. Permutation in string. Minimum window substring. Sliding window Maximum.