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Invidious > Channel > Greg Hogg

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YT 17 minutes 41 seconds Greg Hogg Time & Space Complexity - Big O Notation - DSA Course in Python Lecture 1 YT 3 hours 8 minutes 50 seconds Greg Hogg Python Full Course For Beginners: Zero to Hero in 3 Hours YT 18 minutes 23 seconds Greg Hogg Static Arrays, Dynamic Arrays, and Strings - Big O Complexity - DSA Course in Python Lecture 2

YT 17 minutes 4 seconds Greg Hogg Linked Lists - Singly & Doubly Linked - DSA Course in Python Lecture 3 YT 25 minutes 51 seconds Greg Hogg Hash Tables: Hash Functions, Sets, & Maps - DSA Course in Python Lecture 4 YT 14 minutes 58 seconds Greg Hogg Stacks & Queues - DSA Course in Python Lecture 5

YT 19 minutes 1 second Greg Hogg Recursion - Recursive Call Stacks & Algorithms - DSA Course in Python Lecture 6 YT 21 minutes 51 seconds Greg Hogg Binary Search - Traditional + Condition Based - DSA Course in Python Lecture 7 YT 39 minutes 38 seconds Greg Hogg Binary Trees & Binary Search Trees - DSA Course in Python Lecture 8

YT 24 minutes 8 seconds Greg Hogg Heaps & Priority Queues - Heapify, Heap Sort, Heapq Library - DSA Course in Python Lecture 9 YT 41 minutes 41 seconds Greg Hogg Sorting: Bubble, Insertion, Selection, Merge, Quick, Counting Sort - DSA Course in Python Lecture 10 YT 32 minutes 11 seconds Greg Hogg Graphs: Edge List, Adjacency Matrix, Adjacency List, DFS, BFS - DSA Course in Python Lecture 11

YT 8 minutes 18 seconds Greg Hogg 2 Pointers Algorithm - DSA Course in Python Lecture 12 YT 20 minutes 31 seconds Greg Hogg Sliding Window Algorithm - Variable Length + Fixed Length - DSA Course in Python Lecture 13 YT 12 minutes 58 seconds Greg Hogg Recursive Backtracking - DSA Course in Python Lecture 14

YT 20 minutes 41 seconds Greg Hogg Dynamic Programming - Top Down Memoization & Bottom Up Tabulation - DSA Course in Python Lecture 15 YT 3 minutes 24 seconds Greg Hogg Find Closest Number to Zero - Leetcode 2239 - Arrays & Strings (Python) YT 7 minutes 7 seconds Greg Hogg Merge Strings Alternately - Leetcode 1768 - Arrays & Strings (Python)

YT 6 minutes 15 seconds Greg Hogg Roman to Integer - Leetcode 13 - Arrays & Strings (Python) YT 4 minutes 22 seconds Greg Hogg Is Subsequence - Leetcode 392 - Arrays & Strings (Python) YT 5 minutes 49 seconds Greg Hogg Best Time to Buy and Sell Stock - Leetcode 121 - Arrays & Strings (Python)

YT 7 minutes 1 second Greg Hogg Longest Common Prefix - Leetcode 14 - Arrays & Strings (Python) YT 5 minutes 57 seconds Greg Hogg Summary Ranges - Leetcode 228 - Arrays & Strings (Python) YT 7 minutes 58 seconds Greg Hogg Product of Array Except Self - Leetcode 238 - Arrays & Strings (Python)

YT 7 minutes 14 seconds Greg Hogg Merge Intervals - Leetcode 56 - Arrays & Strings (Python) YT 8 minutes 32 seconds Greg Hogg Spiral Matrix - Leetcode 54 - Arrays & Strings (Python) YT 5 minutes 27 seconds Greg Hogg Rotate Image - Leetcode 48 - Arrays & Strings (Python)

YT 6 minutes 52 seconds Greg Hogg Jewels and Stones - Leetcode 771 - Hashmaps & Sets (Python) YT 8 minutes 34 seconds Greg Hogg Ransom Note - Leetcode 383 - Hashmaps & Sets (Python) YT 1 minute 50 seconds Greg Hogg Contains Duplicate - Leetcode 217 - Hashmaps & Sets (Python)

YT 3 minutes 44 seconds Greg Hogg Valid Anagram - Leetcode 242 - Hashmaps & Sets (Python) YT 4 minutes 25 seconds Greg Hogg Two Sum - Leetcode 1 - Hashmaps & Sets (Python) YT 7 minutes 28 seconds Greg Hogg Group Anagrams - Leetcode 49 - Hashmaps & Sets (Python)

YT 5 minutes 10 seconds Greg Hogg Valid Sudoku - Leetcode 36 - Hashmaps & Sets (Python) YT 8 minutes 21 seconds Greg Hogg Maximum Number of Balloons - Leetcode 1189 - Hashmaps & Sets (Python) YT 7 minutes 8 seconds Greg Hogg Longest Consecutive Sequence - Leetcode 128 - Hashmaps & Sets (Python)

YT 8 minutes Greg Hogg Majority Element - Leetcode 169 - Hashmaps & Sets (Python) YT 7 minutes 23 seconds Greg Hogg Squares of a Sorted Array - Leetcode 977 - 2 Pointers (Python) YT 4 minutes 37 seconds Greg Hogg Reverse String - Leetcode 344 - 2 Pointers - (Python)

YT 5 minutes 43 seconds Greg Hogg Two Sum II - Leetcode 167 - 2 Pointers (Python) YT 5 minutes 43 seconds Greg Hogg Valid Palindrome - Leetcode 125 - 2 Pointers (Python) YT 11 minutes 11 seconds Greg Hogg 3Sum (Updated Solution) - Leetcode 15 - Two Pointers (Python)

YT 6 minutes 48 seconds Greg Hogg Container With Most Water - Leetcode 11 - 2 Pointers (Python) YT 9 minutes 51 seconds Greg Hogg Trapping Rain Water - Leetcode 42 - 2 Pointers (Python) YT 5 minutes 18 seconds Greg Hogg Baseball Game - Leetcode 682 - Stacks (Python)

YT 8 minutes 55 seconds Greg Hogg Valid Parentheses - Leetcode 20 - Stacks (Python) YT 12 minutes 35 seconds Greg Hogg Daily Temperatures - Leetcode 739 - Stacks (Python) YT 11 minutes 56 seconds Greg Hogg Evaluate Reverse Polish Notation (RPN) - Leetcode 150 - Stacks (Python)

YT 8 minutes 1 second Greg Hogg Min Stack - Leetcode 155 - Stacks (Python) YT 6 minutes 22 seconds Greg Hogg Binary Search - Leetcode 704 - Binary Search (Python) YT 5 minutes 58 seconds Greg Hogg Search Insert Position - Leetcode 35 - Binary Search (Python)

YT 9 minutes 32 seconds Greg Hogg Search a 2D Matrix - Leetcode 74 - Binary Search (Python) YT 9 minutes 16 seconds Greg Hogg Find Minimum in Rotated Sorted Array - Leetcode 153 - Binary Search (Python) YT 9 minutes 7 seconds Greg Hogg Search in Rotated Sorted Array - Leetcode 33 - Binary Search (Python)

YT 8 minutes 12 seconds Greg Hogg First Bad Version - Leetcode 278 - Binary Search (Python) YT 7 minutes 30 seconds Greg Hogg Valid Perfect Square - Leetcode 367 - Binary Search (Python) YT 13 minutes 34 seconds Greg Hogg Koko Eating Bananas - Leetcode 875 - Binary Search (Python)

YT 5 minutes 27 seconds Greg Hogg Remove Duplicates from Sorted List - Leetcode 83 - Linked Lists (Python) YT 8 minutes 2 seconds Greg Hogg Reverse Linked List - Leetcode 206 - Linked Lists (Python) YT 9 minutes 41 seconds Greg Hogg Merge Two Sorted Lists - Leetcode 21 - Linked Lists (Python)

YT 7 minutes 47 seconds Greg Hogg Linked List Cycle - Leetcode 141 - Linked Lists (Python) YT 5 minutes 20 seconds Greg Hogg Insert Greatest Common Divisors in Linked List - Leetcode 2807 - Linked Lists (Python) YT 7 minutes 42 seconds Greg Hogg Remove Nth Node from End of List - Leetcode 19 - Linked Lists (Python)

YT 5 minutes 46 seconds Greg Hogg Middle of the Linked List - Leetcode 876 - Linked Lists (Python) YT 7 minutes 44 seconds Greg Hogg Copy List with Random Pointer - Leetcode 138 - Linked Lists (Python) YT 7 minutes 26 seconds Greg Hogg Max Consecutive Ones III - Leetcode 1004 - Sliding Window (Python)

YT 12 minutes 4 seconds Greg Hogg Longest Substring Without Repeating Characters - Leetcode 3 - Sliding Window (Python) YT 13 minutes 29 seconds Greg Hogg Longest Repeating Character Replacement - Leetcode 424 - Sliding Window (Python) YT 6 minutes 37 seconds Greg Hogg Minimum Size Subarray Sum - Leetcode 209 - Sliding Window (Python)

YT 7 minutes 48 seconds Greg Hogg Maximum Average Subarray I - Leetcode 643 - Fixed Sliding Window (Python) YT 14 minutes 23 seconds Greg Hogg Permutation in String - Leetcode 567 - Fixed Sliding Window (Python) YT 6 minutes 40 seconds Greg Hogg Invert Binary Tree - Leetcode 226 - Trees (Python)

YT 5 minutes 57 seconds Greg Hogg Maximum Depth of Binary Tree - Leetcode 104 - Trees (Python) YT 6 minutes 6 seconds Greg Hogg Balanced Binary Tree - Leetcode 110 - Trees (Python) YT 11 minutes 16 seconds Greg Hogg Diameter of Binary Tree - Leetcode 543 - Trees (Python)

YT 5 minutes 55 seconds Greg Hogg Same Binary Tree - Leetcode 100 - Trees (Python) YT 4 minutes 16 seconds Greg Hogg Symmetric Tree - Leetcode 101 - Trees (Python) YT 6 minutes 1 second Greg Hogg Subtree of Another Tree - Leetcode 572 - Trees (Python)

YT 7 minutes 10 seconds Greg Hogg Count Good Nodes in Binary Tree - Leetcode 1448 - Trees (Python) YT 4 minutes 24 seconds Greg Hogg Path Sum - Leetcode 112 - Trees (Python) YT 9 minutes 49 seconds Greg Hogg Binary Tree Level Order Traversal (BFS) - Leetcode 102 - Trees (Python)

YT 3 minutes 48 seconds Greg Hogg Average of Levels in Binary Tree - Leetcode 637 - Trees (Python) YT 7 minutes 45 seconds Greg Hogg Kth Smallest Element in a BST - Leetcode 230 - Trees (Python) YT 6 minutes 31 seconds Greg Hogg Minimum Absolute Difference in BST - Leetcode 530 - Trees (Python)

YT 8 minutes 12 seconds Greg Hogg Validate Binary Search Tree - Leetcode 98 - Trees (Python) YT 8 minutes 48 seconds Greg Hogg Lowest Common Ancestor of a Binary Search Tree - Leetcode 235 - Trees (Python) YT 9 minutes 30 seconds Greg Hogg Implement Trie (Prefix Tree) - Leetcode 208 - Trees (Python)

YT 7 minutes 58 seconds Greg Hogg Last Stone Weight - Leetcode 1046 - Heaps (Python) YT 11 minutes 52 seconds Greg Hogg Kth Largest Element in an Array - Leetcode 215 - Heaps (Python) YT 14 minutes 8 seconds Greg Hogg Top K Frequent Elements - Leetcode 347 - Heaps (Python)

YT 9 minutes 47 seconds Greg Hogg K Closest Points to Origin - Leetcode 973 - Heaps (Python) YT 10 minutes 7 seconds Greg Hogg Merge K Sorted Linked Lists - Leetcode 23 - Heaps (Python) YT 11 minutes 51 seconds Greg Hogg Subsets - Leetcode 78 - Recursive Backtracking (Python)

YT 9 minutes 42 seconds Greg Hogg Permutations - Leetcode 46 - Recursive Backtracking (Python) YT 7 minutes 56 seconds Greg Hogg Combinations - Leetcode 77 - Recursive Backtracking (Python) YT 10 minutes 29 seconds Greg Hogg Combination Sum - Leetcode 39 - Recursive Backtracking (Python)

YT 10 minutes 1 second Greg Hogg Letter Combinations of a Phone Number - Leetcode 17 - Recursive Backtracking (Python) YT 9 minutes 43 seconds Greg Hogg Generate Parentheses - Leetcode 22 - Recursive Backtracking (Python) YT 12 minutes 24 seconds Greg Hogg Word Search - Leetcode 79 - Recursive Backtracking (Python)

YT 12 minutes 20 seconds Greg Hogg Find if Path Exists in Graph - Leetcode 1971 - Graphs (Python) YT 11 minutes 1 second Greg Hogg Number of Islands - Leetcode 200 - Graphs (Python) YT 11 minutes 15 seconds Greg Hogg Max Area of Island - Leetcode 695 - Graphs (Python)

YT 13 minutes 32 seconds Greg Hogg Course Schedule (Detecting Cycles in a Graph) - Leetcode 207 - Graphs (Python) YT 14 minutes 8 seconds Greg Hogg Course Schedule II (Topological Sort) - Leetcode 210 - Graphs (Python) YT 17 minutes 10 seconds Greg Hogg Pacific Atlantic Water Flow - Leetcode 417 - Graphs (Python)

YT 13 minutes 38 seconds Greg Hogg Clone Graph - Leetcode 133 - Graphs (Python) YT 16 minutes 9 seconds Greg Hogg Rotting Oranges - Leetcode 994 - Graphs (Python) YT 14 minutes 45 seconds Greg Hogg Min Cost to Connect All Points (Prim's Algorithm to Create MST) - Leetcode 1584 - Graphs (Python)

YT 13 minutes 34 seconds Greg Hogg Network Delay Time (Djikstra's Algorithm) - Leetcode 743 - Graphs (Python) YT 19 minutes 5 seconds Greg Hogg Fibonacci Number - Leetcode 509 - Dynamic Programming (Python) YT 10 minutes 54 seconds Greg Hogg Climbing Stairs - Leetcode 70 - Dynamic Programming (Python)

YT 13 minutes 14 seconds Greg Hogg Min Cost Climbing Stairs - Leetcode 746 - Dynamic Programming (Python) YT 13 minutes 15 seconds Greg Hogg House Robber - Leetcode 198 - Dynamic Programming (Python) YT 13 minutes 3 seconds Greg Hogg Unique Paths - Leetcode 62 - Dynamic Programming (Python)

YT 15 minutes 27 seconds Greg Hogg Coin Change - Leetcode 322 - Dynamic Programming (Python) YT 4 minutes 40 seconds Greg Hogg Maximum Subarray (Kadane's Algorithm) - Leetcode 53 - Dynamic Programming (Python) YT 8 minutes 42 seconds Greg Hogg Jump Game - Leetcode 55 - Dynamic Programming (Python)

YT 8 minutes 32 seconds Greg Hogg Longest Increasing Subsequence - Leetcode 300 - Dynamic Programming (Python) YT 9 minutes 21 seconds Greg Hogg Longest Common Subsequence - Leetcode 1143 - Dynamic Programming (Python) YT 4 minutes 5 seconds Greg Hogg 4Sum - Leetcode 18 - Two Pointers (Python)

YT 8 minutes 54 seconds Greg Hogg 3Sum Closest - Leetcode 16 - Two Pointers (Python) YT 7 minutes 18 seconds Greg Hogg Sort Colors - Leetcode 75 - Arrays & Strings (Python) YT 7 minutes 56 seconds Greg Hogg ZigZag Conversion - Leetcode 6 - Arrays & Strings (Python)

YT 10 minutes 59 seconds Greg Hogg Largest Rectangle in Histogram - Leetcode 84 - Stacks (Python) YT 6 minutes 8 seconds Greg Hogg Merge Sorted Array - Leetcode 88 - Arrays & Strings (Python) YT 4 minutes 56 seconds Greg Hogg Remove Element - Leetcode 27 - 2 Pointers (Python)

YT 4 minutes 59 seconds Greg Hogg Remove Duplicates From Sorted Array - Leetcode 26 - Arrays & Strings (Python) YT 5 minutes 49 seconds Greg Hogg Remove Duplicates From Sorted Array II - Leetcode 80 - Arrays & Strings (Python) YT 9 minutes 6 seconds Greg Hogg Best Time to Buy and Sell Stock II - Leetcode 122 - Arrays & Strings (Python)

YT 9 minutes 37 seconds Greg Hogg Jump Game II - Leetcode 45 - Recursive Backtracking (Python) YT 9 minutes 50 seconds Greg Hogg H Index - Leetcode 274 - Arrays & Strings (Python) YT 17 minutes 23 seconds Greg Hogg Binary Numbers and Bit Manipulation - DSA Course in Python Lecture 16

YT 5 minutes 20 seconds Greg Hogg Base 7 - Leetcode 504 - Bit Manipulation (Python) YT 4 minutes 44 seconds Greg Hogg Number of 1 Bits - Leetcode 191 - Bit Manipulation (Python) YT 8 minutes 20 seconds Greg Hogg Add Binary - Leetcode 67 - Bit Manipulation (Python)

YT 3 minutes 40 seconds Greg Hogg Single Number - Leetcode 136 - Bit Manipulation (Python) YT 55 seconds Greg Hogg Leetcode 150 - Evaluate Reverse Polish Notation YT 53 seconds Greg Hogg AVOID THIS CODING INTERVIEW MISTAKE!