Problem Description In Land waterless, water is a very limited resource. People always fight for the biggest source of water. Given a sequence of water sources with a1,a2,a3,...,an representing the size of the water source. Given a set of queries eac…
Problem Description On the way to the next secret treasure hiding place, the mathematician discovered a cave unknown to the map. The mathematician entered the cave because it is there. Somewhere deep in the cave, she found a treasure chest with a com…
题目;http://acm.hdu.edu.cn/showproblem.php?pid=5455 题意就是找出所给字符串有多少个满足题目所给条件的子串,重复的也算,坑点是如果有c,f以外的字符也是不满足条件的,还有我被坑了的地方就是当输入很多f的时候,我尽然脑抽的 认为这是不满足条件的,注意这两点就行了,直接暴力 #include<cstdio> #include<cstring> using namespace std; int main() { int t,i,j,x,y,k…
你的一系列得分 先降序排列 再按0.95^(i-1)*ai 这个公式计算你的每一个得分 最后求和 Sample Input12530 478Sample Output984.1000000000 # include <iostream> # include <cstdio> # include <algorithm> # include <map> # include <cmath> # define LL long long using nam…