BestCoder Sequence Problem DescriptionMr Potato is a coder.Mr Potato is the BestCoder.One night, an amazing sequence appeared in his dream. Length of this sequence is odd, the median number is M, and he named this sequence as Bestcoder Sequence.As th…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=4908 BestCoder Sequence Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 618    Accepted Submission(s): 214 Problem Description Mr Potato is a code…

BestCoder Sequence Problem Description Mr Potato is a coder. Mr Potato is the BestCoder. One night, an amazing sequence appeared in his dream. Length of this sequence is odd, the median number is M, and he named this sequence as Bestcoder Sequence. A…

BestCoder Sequence Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 573    Accepted Submission(s): 201 Problem Description Mr Potato is a coder.Mr Potato is the BestCoder. One night, an amazing s…

hdu  4908  Bestcoder Problem Description Mr Potato is a coder.Mr Potato is the BestCoder. One night, an amazing sequence appeared in his dream. Length of this sequence is odd, the median number is M, and he named this sequence as Bestcoder Sequence.…

BestCoder Sequence Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 271    Accepted Submission(s): 112 Problem Description Mr Potato is a coder. Mr Potato is the BestCoder. One night, an amazing…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=4908 题目意思:给出 一个从1~N 的排列你和指定这个排列中的一个中位数m,从这个排列中找出长度为奇数,中位数是m的子序列有多少个. 我的做法被discuss 中的测试数据一下子就否定了. 这个是别人的做法,暂时留下来,有些地方还没真正弄懂,应该是缺了部分的知识没有学到... 留着先: (1)http://blog.csdn.net/hcbbt/article/details/38377815 (2…

分析:大于等于m的变成1,否则变成0,预处理前缀和,枚举起点,找到第一个点前缀和大于m即可 找第一个点可以二分可以尺取 #include <cstdio> #include <cstring> #include <cmath> #include <algorithm> using namespace std; typedef long long LL; ; int T,n,m,k,a[N],sum[N]; int main(){ scanf("%d…

分析:维护空隙的差,然后预处理前缀最大,后缀最大,扫一遍 #include <cstdio> #include <cstring> #include <cmath> #include <algorithm> using namespace std; typedef long long LL; ; int a[N],T,n,b[N],l[N],r[N]; int main(){ scanf("%d",&T); while(T--){…

枚举+组合数?+DP+数学问题 http://bestcoder.hdu.edu.cn/contests/contest_show.php?cid=582 QAQ许久没打过比赛,来一发BC,结果还是只能做前两题……too young too naive了…… 不过这场比赛前两题被hack&FST的人挺多的?蒟蒻手太慢,造数据也慢,玩不来hack……抢不到QAQ A 给5张牌,问最少换多少张可得到同花顺. 其实是枚举花色,以及最小的是哪张(其实就是枚举换完以后,得到的是哪五张)看手里有多少张是已经…