摘要：You are given a 3D grid, which has dimensions X, Y and Z. Each of the X x Y x Z cells contains a light. Initially all lights are off. You will have K  阅读全文

摘要：Rimi learned a new thing about integers, which is - any positive integer greater than 1 can be divided by its divisors. So, he is now playing with thi 阅读全文

摘要：Problem Description I used to think I could be anything, but now I know that I couldn't do anything. So I started traveling.The nation looks like a co 阅读全文