A - Diverse Team There are n students in a school class, the rating of the i-th student on Codehorses is ai. You have to form a team consisting of k s Read More
B - Reversing Encryption A string s of length n can be encrypted by the following algorithm: iterate over all divisors of n in decreasing order (i.e. Read More
A. Thickest Burger 1000ms 262144K ACM ICPC is launching a thick burger. The thickness (or the height) of a piece of club steak is AAA (1≤A≤100)(1 \le Read More
NAIPC 2017 Yin and Yang Stones 75.39% 1000ms 262144K A mysterious circular arrangement of black stones and white stones has appeared. Ming has been ta Read More