1 jar: guava-r05.jar 2 String orderColumn = "orderColumn";//输入是LOWER_CAMEL，输出是LOWER_UNDERSCOREorderColumn = CaseFormat.LOWER_CAMEL.to(CaseFormat.LOWER_UNDERSCORE, orderColumn);System.out.pr

Problem Description Steve has an integer array a of length n (1-based). He assigned all the elements as zero at the beginning. After that, he made m operations, each of which is to update an interval

题目链接 用给定方法生成区间[l,r]和一个数v，每次将[l,r]中小于v的数变为v，最后求每个位置上i*ai的异或和。 将区间中小于v的数变为v，实质上就是需要维护并修改区间最大值。区间最大值可以用线段树实现，也可以用RMQ倍增来实现。 对于一个待处理的区间[l,r]，考虑，这样就将[l,r]拆成了两个可重叠的，长度均为1<<tmp的子区间。dp[i][j]表示从i开始长度为1<<j的子区间

Problem Description Steve has an integer array a of length n (1-based). He assigned all the elements as zero at the beginning. After that, he made m operations, each of which is to update an interva