【杭电oj】1754 - I Hate It（线段树） I Hate It
I Hate ItTime Limit: 9000/3000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 60044 Accepted Submission(s): 23379Problem Description很多学校流行一种比较的习惯。
