HDU 4417 主席树写法】的更多相关文章

Super Mario Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 6208    Accepted Submission(s): 2687 Problem Description Mario is world-famous plumber. His “burly” figure and amazing jumping ability…
Super Mario HDU 4417 主席树区间查询 题意 给你n个数(编号从0开始),然后查询区间内小于k的数的个数. 解题思路 这个可以使用主席树来处理,因为这个很类似查询区间内的第k小的问题.当然我们需要进行离散化,不只是那n个数,k也需要进行离散化. 详情看代码吧,有注释. 代码实现 #include<cstdio> #include<cstring> #include<algorithm> #include<vector> using name…
Problem 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 (…
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 length is n), on…
Sequence II Time Limit: 9000/4500 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 849    Accepted Submission(s): 204 Problem Description Mr. Frog has an integer sequence of length n, which can be denoted as a1,a2,⋯…
J - Super Mario HDU - 4417 这个题目我开始直接暴力,然后就超时了,不知道该怎么做,直接看了题解,这个习惯其实不太好. 不过网上的思路真的很厉害,看完之后有点伤心,感觉自己应该可以写的,但是没有写出来. 因为我们要查找一个区间小于等于c的数有多少个,这种区间处理可以用线段树很好的解决, 但是怎么解决呢,我习惯性的直接建树,然后再想怎么做,其实这样不对, 线段树对于我们来说是一个解决问题的工具,不要本末倒置了. 我们想查找一个区间小于等于c的数的个数,用线段树查询很简单,但…
KiKi's K-Number Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3966    Accepted Submission(s): 1758 Problem Description For the k-th number, we all should be very familiar with it. Of course,to…
Kth number Time Limit: 15000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 10240    Accepted Submission(s): 3153 Problem Description Give you a sequence and ask you the kth big number of a inteval.   Input The…
Just h-index Time Limit: 6000/3000 MS (Java/Others)    Memory Limit: 132768/132768 K (Java/Others)Total Submission(s): 438    Accepted Submission(s): 203 Problem Description The h-index of an author is the largest h where he has at least h papers wit…
Kth number                                                 Time Limit: 15000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)                                                                        Total Submission(s): 10682    Accep…