摘要： 题目链接http://acm.hdu.edu.cn/showproblem.php?pid=1789Doing Homework againTime Limit: 1000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 4877Accepted Submission(s): 2852Problem DescriptionIgnatius has just come back school from the 30th ACM/ICPC. Now he has a lot of 阅读全文