51. N-Queens (JAVA)
摘要：
The n-queens puzzle is the problem of placing n queens on an n×n chessboard such that no two queens attack each other. Given an integer n, return all 阅读全文
posted @ 2019-06-28 21:04 joannae 阅读(245) 评论(0) 推荐(0) 编辑
