摘要：
CA loves strings, especially loves the palindrome strings. One day he gets a string, he wants to know how many palindromic substrings in the substring 阅读全文
摘要：
A .Abstract Art 题意：求多个多边形的面积并。 思路：模板题。 #include<bits/stdc++.h> using namespace std; typedef long long ll; const double inf=1e200; const double eps=1e- 阅读全文