2018年7月20日
Cube
摘要： Cube Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 131072/65536 K (Java/Others)Total Submission(s): 2614 Accepted Submission(s): 1314 Problem D 阅读全文
posted @ 2018-07-20 21:47 #忘乎所以# 阅读(226) 评论(0) 推荐(0)
树状数组
摘要： 树状数组 基本概念 Binary Indexed Tree二叉索引树它的查询和修改的时间复杂度都是log(n)，空间复杂度则为O(n). 二进制操作 如上图所示,可以写出下列式子:C1 = A1C2 = A1 + A2C3 = A3C4 = A1 + A2 + A3 + A4C5 = A5C6 = 阅读全文
posted @ 2018-07-20 16:10 #忘乎所以# 阅读(164) 评论(0) 推荐(0)
Stars
摘要： Stars Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 11970 Accepted Submission(s): 4740 Problem 阅读全文
posted @ 2018-07-20 11:57 #忘乎所以# 阅读(232) 评论(0) 推荐(0)
Game with Pearls
摘要： Game with Pearls Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 3685 Accepted Submission(s): 129 阅读全文
posted @ 2018-07-20 11:06 #忘乎所以# 阅读(176) 评论(0) 推荐(0)