Week 4 - Two Pointers Introduction https://www.youtube.com/watch?v=-gjxg6Pln50 List of exercises https://leetcode.com/problems/valid-palindrome/ https://leetcode.com/problems/two-sum-ii-input-array-is-sorted/ https://leetcode.com/problems/3sum/ https://leetcode.com/problems/container-with-most-water/ https://leetcode.com/problems/trapping-rain-water/ More exercises https://leetcode.com/tag/two-pointers/