Here is the extracted table:

Task List

DateActivityStatus
17Algo Practice: Number Of Islands
16Algo Practice: Jump Game
15Algo Practice: Median of Two Sorted Arrays
14Algo Practice: Longest Substring No Repeating Characters
13Algo Practice: Number Palindrome
12Algo Practice: LRU Cache
11Algo Practice: Longest Palindromic Substring
10Algo: Container With Most Water
9Algo: Reverse Words In String
8Algo: Merge Intervals
7Algo Practice: Three Number Sum
6Algo Practice: Kth Largest Element in Unsorted Array
5Algo Practice: Group Anagrams
4Algo Practice: Water Area
3Algo Practice: Merge Sorted Arrays
2Algo Practice: Buy and Sell a Stock Once
1Algo Practice: Climbing Stairs

16. Jump Game

This got many variations:

The first two are classics:

  • Jump Game - greedy algo

  • Jump Game II - BFS

17. Number of Islands

https://neetcode.io/problems/count-number-of-islands Linear time and linear space (due to stack)