Arrays Playlist | Basics to Advanced | C++/Java/Python | DSA | Placements

by take U forward · 28 videos

Total watch time

13h 2m

at speed · exactly 13 hours, 1 minute, 43 seconds at 1×

13h 1m 43s
1.25×10h 25m 22s
1.5×8h 41m 9s
1.75×7h 26m 42s
6h 30m 52s
Average video27m 55s
Longest1h 13m 17s
Shortest9m 11s
Compare Open on YouTube JSON

Plan to finish

About 14 days at an hour a day

Pick a daily pace and the days you'll watch. Ticked videos are skipped.

Days

At one hour a day, every day, this playlist takes about 14 days. Turn on JavaScript to plan around your week.

Videos (28)

13h 2m in total · tick what you've watched

Tick videos you've watched — progress is saved in this browser.

Videos to
Watched
1 Find Second Largest Element in Array | Remove duplicates from Sorted Array | Arrays Intro Video 43:26 2023-03-01
2 Rotate Array by K places | Union, Intersection of Sorted Arrays | Move Zeros to End | Arrays Part-2 1:13:17 2023-03-05
3 Find element that appears once | Find missing number | Max Consecutive number of 1's | Arrays Part-3 38:00 2023-03-10
4 Longest Subarray with sum K | Brute - Better - Optimal | Generate Subarrays 41:42 2023-03-13
5 2 Sum Problem | 2 types of the same problem for Interviews | Brute-Better-Optimal 18:20 2023-03-14
6 Sort an array of 0's 1's & 2's | Intuition of Algo🔥 | C++ Java Python | Brute-Better-Optimal 25:07 2023-03-15
7 Majority Element I | Brute-Better-Optimal | Moore's Voting Algorithm | Intuition 🔥|Brute to Optimal 18:13 2023-03-16
8 Kadane's Algorithm | Maximum Subarray Sum | Finding and Printing 20:09 2023-03-17
9 Rearrange Array Elements by Sign | 2 Varieties of same Problem 21:37 2023-03-18
10 DP 35. Best Time to Buy and Sell Stock | DP on Stocks 🔥 9:11 2022-03-15
11 Next Permutation - Intuition in Detail 🔥 | Brute to Optimal 28:15 2023-03-23
12 Leaders in an Array | Brute - Optimal | Strivers A2Z DSA Course 11:53 2023-03-24
13 Longest Consecutive Sequence | Google Interview Question | Brute Better Optimal 23:11 2023-03-27
14 Set Matrix Zeroes | O(1) Space Approach | Brute - Better - Optimal 30:07 2023-03-28
15 Rotate Matrix/Image by 90 Degrees | Brute - Optimal 17:47 2023-03-30
16 Spiral Traversal of a Matrix | Spiral Matrix 16:33 2023-04-02
17 Count Subarray sum Equals K | Brute - Better -Optimal 24:09 2023-04-03
18 Pascal Triangle | Finding nCr in minimal time 26:45 2023-04-05
19 Majority Element II | Brute-Better-Optimal 26:58 2023-04-14
20 3 Sum | Brute - Better - Optimal with Codes 38:25 2023-04-17
21 4 Sum | Brute - Better - Optimal with Codes 28:47 2023-04-18
22 Number of Subarrays with xor K | Brute - Better - Optimal 24:55 2023-04-25
23 Merge Overlapping Intervals | Brute, Optimal with Precise TC analysis 22:35 2023-04-25
24 Merge Sorted Arrays Without Extra Space | 2 Optimal Solution 32:47 2023-04-27
25 Find the Missing and Repeating Number | 4 Approaches 🔥 42:24 2023-04-29
26 Count Inversions in an Array | Brute and Optimal 24:17 2023-05-08
27 Reverse Pairs | Hard Interview Question 32:26 2023-05-08
28 Maximum Product Subarray - Best Intuitive Approach Discussed 20:27 2023-05-10

Embed a badge

Show the watch time in a README or course description — it links back here and updates itself

Watch time: 13h 2m · 28 videos

Markdown
[![Watch time: 13h 2m · 28 videos](https://playlistduration.com/badge/playlist/PLgUwDviBIf0rENwdL0nEH0uGom9no0nyB.svg)](https://playlistduration.com/playlist/PLgUwDviBIf0rENwdL0nEH0uGom9no0nyB)
HTML
<a href="https://playlistduration.com/playlist/PLgUwDviBIf0rENwdL0nEH0uGom9no0nyB"><img src="https://playlistduration.com/badge/playlist/PLgUwDviBIf0rENwdL0nEH0uGom9no0nyB.svg" alt="Watch time: 13h 2m · 28 videos" width="203" height="20"></a>

Add ?speed=1.5 to the image URL for the time at that speed, ?label=Course to change the left text, or ?style=flat-square for square corners.

Want the numbers themselves? GET https://playlistduration.com/api/v1/playlist/PLgUwDviBIf0rENwdL0nEH0uGom9no0nyB returns them as JSON — free, no key. API docs →

Data from the YouTube Data API as of 2026-09-22 (cached). Private or deleted videos are excluded from totals.