Update 07/07/2023: All Google coding competitions have come to an end Very sad news indeed. Hope everyone still loves competitive coding and keeps on learning, practicing, and achieving!

My AC solutions that passes **ALL** test cases, with explanations.
**EVERY** problem before 2017_Round C and after 2017_round F.

1. Some problem analysis provides unique approaches that I haven't seen other people use e.g. 2020 round d problem 4
   
2. Some problem analysis provides my approach that is easier to implement than, and equally as good as the official solution e.g. 2021 round f problem 2
   
3. Some problem analysis (written by me) are the most detailed analysis on the internet (because no one writes about it :) e.g. 2016 round e problem 4)
   
4. Some problem analysis corrects mistakes made in official analysis. i.e., you would get WRONG answer if you follow the implementation of official analysis. See why the official analysis is wrong in e.g. 2022 Round H problem 4. (as of 11/15/2022)
   
   

I have re-named my variables and functions to be more verbose in my solutions to increase readability of codes.