Merry_hj的博客

http://acm.hdu.edu.cn/showproblem.php?pid=6129 Problem Description There is a nonnegative integer sequence a1…n of length n. HazelFan wants to do a type of transformation called prefix-XOR, which mea

http://acm.hdu.edu.cn/showproblem.php?pid=6124 Problem Description HazelFan is given two positive integers a,b， and he wants to calculate amodb. But now he forgets the value of b and only remember th

Subset sequence题目大意：考虑一个集合 An = { 1, 2, …, n}。比如，A1={1}，A3={1,2,3}。我们称一个非空子集元素的排列为一个子集序列。对所有的子序列按字典顺序排序。你的任务就是给出第m个子序列。 测试数据： Sample Input 1 1 2 1 2 2 2 3 2 4 3 10Sample Output 1 1 1 2 2 2