随笔分类 -  构造

codeforces 710C Magic Odd Square(构造或者n阶幻方)
摘要：Find an n × n matrix with different numbers from 1 to n2, so the sum in each row, column and both main diagonals are odd. Find an n × n matrix with di 阅读全文
posted @ 2016-08-26 13:17 PrayG 阅读(320) 评论(0) 推荐(0)