2261: 蛇形矩阵4

Memory Limit:128 MB Time Limit:1.000 S
Judge Style:Text Compare Creator:
Submit:81 Solved:43

Description

构成一个n行n列的蛇形矩阵,规律详见样例(场宽为5)。


Sample Input Copy

 3


 

Sample Output Copy

9  8  4
7  5  3
6  2  1

Source/Category