Problems from Criterion 2022 Round 16

These problems are from a contest organized by Furqan Software on March 25, 2022 at 2:30 PM UTCSee details...

Standings
A. Counting Friends
Johnny uses a social network called Supernova. Unlike the other social networks, Supernova does not ...
B. Powerful Number
Efa loves numbers. She thinks a number is powerful if it can be expressed in the form xy where x and...
C. Subtree MEX
You will be given a balanced binary tree of N nodes. Each of the nodes of the tree will contain a no...
D. Divisible LCM
You have a sequence a1​, a2​, a3​, …, an​ of n integers and q queries. In each query, you are given ...
E. Nilkhet
You’re planning to start a library for the next n days, where you will rent books to students. Each ...
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