https://s1.phpcasts.org/Concurrency-in-Go_Tools-and-Techniques-for-Developers.pdf
- Making A Large Island (DSU with size)
- Trapping Rain Water (Two pointer)
https://docs.google.com/document/d/1HPtAGnG6Uua4jUYG_LD2Rm1QNNwlw6-2t0jJJ_Locd8/edit
https://drive.google.com/file/d/1FMdN_OCfOI0iAeDlqswCiC2DZzD4nPsb/view
https://www.udemy.com/course/aws-cicd-automation-complete-reference-for-prod-ready-system/ https://www.udemy.com/course/kubernetes-on-aws-using-amazon-eks/