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49 results

CS50
CS50x 2024 - Lecture 5 - Data Structures

This is CS50, Harvard University's introduction to the intellectual enterprises of computer science and the art of programming.

2:02:49
CS50x 2024 - Lecture 5 - Data Structures

557,633 views

1 year ago

Doctor Lai
Day 656 - Teaching Kids Programming - Largest Substring Between Two Equal Characters (Hash Map)

00:01 Problem Description 01:07 Another Example 02:43 find/rfind/index/rindex 03:40 Algorithm 08:07 Python Leetcode: ...

10:48
Day 656 - Teaching Kids Programming - Largest Substring Between Two Equal Characters (Hash Map)

44 views

1 year ago

Doctor Lai
Day 681 - Teaching Kids Programming - Using Hash Map to Count the Right Triangles in a Binary Matrix

00:01 Hello! 04:45 Special Case 08:36 Proof of a^2+b^2=c^2 for Right angle triangle 12:35 Counter 12:45 Python 14:08 ...

15:06
Day 681 - Teaching Kids Programming - Using Hash Map to Count the Right Triangles in a Binary Matrix

44 views

1 year ago

Silviya Velani
When searching of HashMap is not O(1) TC? 🤯

Do you know the concept of Load Factor and Rehashing in Hashmap? Check out this video and subscribe on youtube for ...

0:38
When searching of HashMap is not O(1) TC? 🤯

87 views

3 years ago

Doctor Lai
Day 437 - Teaching Kids Programming - Largest Unique Number via Hash Table, Bucket Sorting & GroupBy

Post: ...

12:40
Day 437 - Teaching Kids Programming - Largest Unique Number via Hash Table, Bucket Sorting & GroupBy

23 views

3 years ago

CS50
CS50x 2025 - Lecture 5 - Data Structures

Abstract Data Types. Queues, Stacks. Linked Lists. Trees, Binary Search Trees. Hash Tables. Tries. *** This is CS50, Harvard ...

2:03:38
CS50x 2025 - Lecture 5 - Data Structures

225,522 views

Streamed 1 year ago

Doctor Lai
Day 299 - Teaching Kids Programming - Design a Hash Table

Post: https://helloacm.com/teaching-kids-programming-design-a-hash-table/ If you like this video and would like to encourage and ...

38:52
Day 299 - Teaching Kids Programming - Design a Hash Table

61 views

4 years ago

Doctor Lai
Day 223 - Teaching Kids Programming - Number of Quadruplets That Sum Target via Hash Table

Post: https://helloacm.com/teaching-kids-programming-number-of-quadruplets-that-sum-target-via-hash-table/ If you like this video ...

28:16
Day 223 - Teaching Kids Programming - Number of Quadruplets That Sum Target via Hash Table

29 views

4 years ago

Doctor Lai
Day 481 - Teaching Kids Programming - Rearrange Characters to Make Target String (Hash Map)

Post: https://helloacm.com/teaching-kids-programming-rearrange-characters-to-make-target-string-hash-map/ If you like this video ...

8:37
Day 481 - Teaching Kids Programming - Rearrange Characters to Make Target String (Hash Map)

72 views

3 years ago

Doctor Lai
Day 356 - Teaching Kids Programming - Largest K Value with its Negative in Array via Hash Table/Set

Post: ...

5:43
Day 356 - Teaching Kids Programming - Largest K Value with its Negative in Array via Hash Table/Set

29 views

4 years ago

Doctor Lai
Day 625 - Teaching Kids Programming - Count Servers that Communicate (Hash Map - Counter)

00:01 Hello 03:30 Naive Solution 10:00 if rows[r] or cols[c] larger than 1 14:40 Summary Post: ...

17:50
Day 625 - Teaching Kids Programming - Count Servers that Communicate (Hash Map - Counter)

74 views

2 years ago

Doctor Lai
Day 475 - Teaching Kids Programming - Partition List to Pairs that Are Divisible by K (Hash Map)

Post: https://helloacm.com/teaching-kids-programming-partition-list-to-pairs-that-are-divisible-by-k-hash-map/ If you like this video ...

9:43
Day 475 - Teaching Kids Programming - Partition List to Pairs that Are Divisible by K (Hash Map)

76 views

3 years ago

Doctor Lai
Day 662 - Teaching Kids Programming - N-Repeated Element in Size 2N Array (Hash Map/Set)

00:01 Hello 01:22 What's so special about these? 02:09 Hash Set 04:20 Pigeon Hole Principal 05:38 Python Leetcode: ...

7:23
Day 662 - Teaching Kids Programming - N-Repeated Element in Size 2N Array (Hash Map/Set)

17 views

1 year ago

Doctor Lai
Day 298 - Teaching Kids Programming - Introduction to Hash Function

Post: https://helloacm.com/teaching-kids-programming-introduction-to-hashing-function/ If you like this video and would like to ...

20:05
Day 298 - Teaching Kids Programming - Introduction to Hash Function

94 views

4 years ago

CS50
CS50 2021 in HDR - Lecture 5 - Data Structures

This is CS50, Harvard University's Introduction to the intellectual enterprises of computer science and the art of programming.

2:12:55
CS50 2021 in HDR - Lecture 5 - Data Structures

170,870 views

3 years ago

Doctor Lai
Day 2^9 - Teaching Kids Programming - Algorithms to Count Equal Row and Column Pairs using Hash Map

Post: https://helloacm.com/teaching-kids-programming-algorithms-to-count-equal-row-and-column-pairs-using-hash-map/ If you ...

10:48
Day 2^9 - Teaching Kids Programming - Algorithms to Count Equal Row and Column Pairs using Hash Map

52 views

3 years ago

Doctor Lai
Day 335 - Teaching Kids Programming - Remove Last Duplicate Entries (Hash Table)

Post: https://helloacm.com/teaching-kids-programming-remove-last-duplicate-entries-hash-table/ If you like this video and would ...

10:07
Day 335 - Teaching Kids Programming - Remove Last Duplicate Entries (Hash Table)

23 views

4 years ago

Doctor Lai
Day 355 - Teaching Kids Programming - Find First Recurring Character using Hash Table/Set

Post: https://helloacm.com/teaching-kids-programming-find-first-recurring-character-using-hash-table-set/ If you like this video and ...

5:52
Day 355 - Teaching Kids Programming - Find First Recurring Character using Hash Table/Set

42 views

4 years ago

Doctor Lai
Day 626 - Teaching Kids Programming - Two Algorithms to Find All Numbers Disappeared in an Array

00:01 Hello 00:19 Pigeon Hole Principles 04:18 Using Hash Set 06:09 Mark Status Visited In-place 09:05 Summary Post: ...

13:09
Day 626 - Teaching Kids Programming - Two Algorithms to Find All Numbers Disappeared in an Array

128 views

2 years ago

Doctor Lai
Day 660 - Teaching Kids Programming - Remove Duplicates from Sorted Linked List (Using Hash Set)

00:01 Problem Description 01:22 Previous Solution 02:30 Python 06:33 Let me Repeat Leetcode: ...

7:56
Day 660 - Teaching Kids Programming - Remove Duplicates from Sorted Linked List (Using Hash Set)

40 views

1 year ago