2018年4月26日
Zero Query SPOJ - ZQUERY
摘要： Given an array having N elements, each element is either -1 or 1. You have M queries, each query has two numbers L and R, you have to answer the lengt 阅读全文
posted @ 2018-04-26 15:11 天之道，利而不害 阅读(366) 评论(0) 推荐(0) 编辑