Problems from Criterion 2022 Round 18

These problems are from a contest hosted on July 29, 2022 at 3:00 PM UTC. See details...

Standings
A. Not Nim
Alice and Bob recently learned about Nim. In a Nim game, two players play a game on several stacks o...
B. Multiverse Of Courier Service
Dr. Strange finally discovered a safe way to travel between parallel universes. By noticing people’s...
C. Match Sticks
Bob was playing with match sticks and discovered that he could create alphabets and numbers by arran...
D. Mental Change
Anjan was feeling low for nearly a couple of months. To improve his condition, he decided to track h...
E. Mix and Merge
You are given an array A of n elements and a constant k. You can perform the following operation on ...
reborn DP Moderate 3/16/80
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