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Difficulty in understanding a approach to the solution of Unfair Nim of ABC172
Hello Everyone!
The link to the question
https://atcoder.jp/contests/abc172/tasks/abc172_f
The approach I am unable to understand.
https://codeforces.me/blog/entry/79438
I am finding it difficult to how is the author deciding what bits to set in x on basis of S. Mainly the 3rd and 4th paragraph of the solution, I am unable to grasp.
It would be really helpful if someone who was able to understand the approach can describe in his own words.
Thank you
| Rev. | Язык | Кто | Когда | Δ | Комментарий | |
|---|---|---|---|---|---|---|
| en1 |
|
Ostrich888 | 2020-07-02 12:56:27 | 555 | Initial revision (published) |
