题意: 刚开始有一个空集合.有三种操作: 1.往集合中加入一个集合中不存在的数 x 2.从集合中删除一个已经存在的数 x 3.计算集合的digest sum并输出. digest sum求法:将集合中所有数从小到大排序,得到a1<a2<...<an. digest sum = sum(ai) where i mod 5 = 3 数据范围: N ( 1 <= N <= 105 ) 1 <= x <= 109. For any "add x&qu…
Attack Time Limit: 5000/3000 MS (Java/Others) Memory Limit: 65768/65768 K (Java/Others)Total Submission(s): 2496 Accepted Submission(s): 788 Problem Description Today is the 10th Annual of “September 11 attacks”, the Al Qaeda is about to attack…
Man Down Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 2030 Accepted Submission(s): 743 Problem Description The Game “Man Down 100 floors” is an famous and interesting game.You can enjoy t…
Description Mario is world-famous plumber. His "burly" figure and amazing jumping ability reminded in our memory. Now the poor princess is in trouble again and Mario needs to save his lover. We regard the road to the boss's castle as a line (the…
题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=3333 Turing Tree Time Limit: 6000/3000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others) 问题描述 After inventing Turing Tree, 3xian always felt boring when solving problems about intervals, because…