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It wasn't hard since I worked this out in Java first. Once again, I felt
Python is really well designed and efficient.
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It was easy, since I did the hard work of working it out in Java first.
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Easy after the Java version is finished.
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Easy, after Java version. Note that don't use ++i or i++, use i = i + 1
instead.
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Seems that recursive approach is better.
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Got the Java version work first. Then it's easy.
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This is quite tricky. I read the forum and it helped
https://courses.edx.org/courses/course-v1:UCSanDiegoX+ALGS200x+2T2017/discussion/forum/course/threads/5a427c497acf2d0810000713
In particular try_my_best's algorithm worked. But I need to de-dup and
sort the list before feeding it to that algorithm, otherwise it won't
pass all the tests!
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Checking in the code.
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aka maximize online ad revenue.
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It was pretty easy, just reimplemting the algorithm I've finished with
Java.
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Doing the first few in a spreadsheet (and properly label columns and
rows) really helped.
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I actually started implementing this in Java first, but ran into long
int overflow issues. Decided to get it working in Python first. I'm glad
it worked! Now back to implement it in Java!
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2 things are really interesting:
1. How to find the right test cases. I think I'll probably need to go
back and re-read how to do an exhautisive testing
2. Python 3's floor division versus true division (// and /) operators
are interesting. This exercise discussion helped me:
https://courses.edx.org/courses/course-v1:UCSanDiegoX+ALGS200x+2T2017/discussion/forum/course/threads/5a3d32d644a15008df00062e
and this one:
https://stackoverflow.com/questions/19507808/python3-integer-division
and this one:
https://www.python.org/dev/peps/pep-0238/
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Bonus: figured PyDev TDD code generation issue. I created "sources" as a source folder, but really should have created as a package, for TDD code generation to work properly. Fixed now!
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