Xenia and Bit Operations（线段树单点更新）
摘要：
Xenia and Bit Operationstime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputXenia the beginner programmer has a sequencea, consisting of2nnon-negative integers:a1, a2, ..., a2n. Xenia is currently studying bit operations. To better understand how the 阅读全文
posted @ 2013-08-29 01:13 铁树银花 阅读(404) 评论(0) 推荐(0) 编辑
