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문제 Madoka's father just reached 1 million subscribers on Mathub! So the website decided to send him a personalized award — The Mathhub's Bit Button! The Bit Button is a rectangular table with n rows and 𝑚m columns with 0 or 1 in each cell. After exploring the table Madoka found out that: A subrectangle A is contained in a subrectangle B if there's no cell contained in A but not contained in B. T..

문제 A number is called powerful if it is a power of two or a factorial. In other words, the number m is powerful if there exists a non-negative integer𝑑d such that m=2^d or m=d!, whered!=1⋅2⋅…⋅d (in particular, 0!=10!=1). For example 1, 4, and 6 are powerful numbers, because 1=1!, 4=2^2, and 6=3! but 7, 10, or 18 are not. You are given a positive integer n. Find the minimum number k such that n c..

https://codeforces.com/contest/1635/problem/B Problem - B - Codeforces codeforces.com 문제 You are given an array 𝑎a of size 𝑛. Each element in this array is an integer between 1 and 10^9. You can perform several operations to this array. During an operation, you can replace an element in the array with any integer between 1and 10^9. Output the minimum number of operations needed such that the res..