problem C. Product 1 Modulo N time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output Now you get Baby Ehab’s first words: “Given an integer n, find the longest subsequence of [1,2,…,n−1] whose product
A. Eating Souptime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard output The three friends, Kuro, Shiro, and Katie, met up again! It’s time for a party… What the cats do when they unite? Right, the
The only difference between easy and hard versions is the number of elements in the array. You are given an array a consisting of n integers. In one move you can choose any ai and divide it by 2 rounding down (in other words, in one move you can set a
You have a given picture with size w×h. Determine if the given picture has a single “+” shape or not. A “+” shape is described below: A “+” shape has one center nonempty cell. There should be some (at least one) consecutive non-empty cells in eac
C. Liebig’s Barrels time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output You have m = n·k wooden staves. The i-th stave has length ai. You have to assemble n barrels consisting of k staves each, you
