L4. Implement Min Stack | Stack and Queue Playlist
![](https://i.ytimg.com/vi/e7XQLtOQM3I/mqdefault.jpg)
18:25
L5. Next Greater Element | Stack and Queue Playlist
![](https://i.ytimg.com/vi/4pIc9UBHJtk/mqdefault.jpg)
50:47
L3. Prefix, Infix, and Postfix Conversion | Stack and Queue Playlist
![](https://i.ytimg.com/vi/tqQ5fTamIN4/mqdefault.jpg)
1:05:06
L1. Introduction to Stack and Queue | Implementation using Data Structures
![](https://i.ytimg.com/vi/1_5VuquLbXg/mqdefault.jpg)
28:58
L8. Trapping Rainwater | 2 Approaches | Stack and Queue Playlist
![](https://i.ytimg.com/vi/v0e8p9JCgRc/mqdefault.jpg)
23:35
L9. Sum of Subarray Minimum | Stack and Queue Playlist
![](https://i.ytimg.com/vi/Bzat9vgD0fs/mqdefault.jpg)
31:42
L12. Largest Rectangle in Histogram | Stack and Queue Playlist
![](https://i.ytimg.com/vi/z9bJUPxzFOw/mqdefault.jpg)
24:56
L18. Implement LRU Cache
![](https://i.ytimg.com/vi/7PrncD7v9YQ/mqdefault.jpg)
15:41