Solution to REAL Codeforces Round #815 (Div. 2) D1

Правка en1, от Bovmelo, 2022-08-19 04:35:12

As known, 1720D1 - Xor-Subsequence (easy version) has an ambiguous descriptioin. I'm the one of those who got misled during the contest. However, the misunderstood problem is solutable. Let's have a look.

It is the misunderstood version of the problem. The only difference is that in this version $$$b_i$$$ do be the subsequence of $$$a$$$, where any $$$b_i$$$ is an element of $$$a$$$. Note that $$$a_i<200$$$ remains true.

Hint 1
Hint 2
Hint 3
solution

However, I had no idea how to solve the misunderstood D2. Could anyone help me?

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en1 Английский Bovmelo 2022-08-19 04:35:12 2705 Initial revision (published)