Unclebighead的博客

A - Eight  The 15-puzzle has been around for over 100 years; even if you don't know it by that name, you've seen it. It is constructed with 15 sliding tiles, each with a number from 1 to 15 on it, and...

A. Chess Placingtime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are given a chessboard of size 1 × n. It is guaranteed that n is even. The ches...