Round #532: coincidences?

Revision en1, by Dalgerok, 2019-01-15 02:33:31

After round I saw some interesting links in the comments.

Problem C: https://www.quora.com/What-is-the-radius-of-the-circle-surrounding-a-circle-if-all-the-surrounding-circles-are-equal

Problem F: After understanding that you must find "subset with maximum XOR" on range from L to R, this subtask is becoming very easy to google it (e.g https://www.geeksforgeeks.org/find-maximum-subset-xor-given-set/)

Actually the SAME problem: https://blog.csdn.net/ShadyPi/article/details/79939990

You can see many accepted submissions with this idea :|

Problem E: https://www.geeksforgeeks.org/assign-directions-to-edges-so-that-the-directed-graph-remains-acyclic/ the same idea to direct edges in order to topological sorting.

Thanks to Rinne and M_H_H_7 for the links in the comments (https://codeforces.com/blog/entry/64495?#comment-484476, https://codeforces.com/blog/entry/64495?#comment-484418).

Tags notorious coincidence, google, gaussian elimination xd, classic, quora, geeksforgeeks, fail, epic fail

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ru2 Russian Dalgerok 2019-01-15 23:38:59 33 Мелкая правка: 'й же идеей, которые даже быстрее авторского :|\n\n[**' -> 'й же идеей :|\n\n[**'
ru1 Russian Dalgerok 2019-01-15 23:25:52 1215 Первая редакция перевода на Русский
en1 English Dalgerok 2019-01-15 02:33:31 1136 Initial revision (published)