[bananaflag]

Answer posts:

1) https://www.computerenhance.com/p/microsoft-intern-interview...

2) https://www.computerenhance.com/p/microsoft-intern-interview...

3) https://www.computerenhance.com/p/microsoft-intern-interview...

4) https://www.computerenhance.com/p/efficient-dda-circle-outli...

[dnnddidiej]

As a kid on old hardware I'd loop 360 degrees and do sin and cos, and wait ages for that circle. I wasn't super clever I probably just cargo culted it from somewhere.