List competitive programming resources

[ceefour]

Make a public web page (GitHub-"contributable" of course) of competitive programming resources.

Special mentions should go to Indonesian CP resources and resources from CP clubs from Indonesian universities (notably Jollybee @ Binus, UPH, ITB, ...).

Some starters:

• @lucasviola's https://github.com/lucasviola/competitive-programming-resources
• @lnishan's https://github.com/lnishan/awesome-competitive-programming
• @nikhiljangam's https://github.com/nikhiljangam/Competitive-programming-resources
• @stevenhalim and @felix-halim's https://cpbook.net/
• @stevenhalim's https://github.com/stevenhalim/stanfordacm

[wisn]

Let's list several competitive programming courses and provide our own course.