
Fox Ciel
时间限制:1000 ms | 内存限制:65535 KB
难度:2
描述
Fox Ciel is going to take a path to meet her friends. The path is tiled with 1x1 square tiles. It is N tiles long and 2 tiles wide. If we imagine that the path is going from the left to the right, we can view it as a rectangle with 2 rows and N columns of tiles. The rows of the path are numbered 0 to 1 from t...