ACL Beginner Contest 1

Revision en1, by dush1729, 2020-09-26 16:40:01

Can't find any announcement for ACL Beginner Contest, so creating this to discuss problems.

C
D

How to solve E?

I tried to make 9 segment tree for each 1 — 9 digits but couldn't find how to do update query where setting everything between l to r to zero when removing digit and to one when adding it.

Tags atcoder, #segment tree

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en1 English dush1729 2020-09-26 16:40:01 639 Initial revision (published)