Gee_Zer的博客

You have a string and queries of two types:replace i’th character of the string by character a;check if substring sj…sk is a palindrome.InputThe first line contains a string consisting of n small ...

敌兵布阵 HDU - 1166 （单点更新+区间查询）#include<bits/stdc++.h>#define LL long long#define Max 100005#define Mod 1e9+7const LL mod=1e9+7;const LL inf=0x3f3f3f3f;using namespace std;int c[50005],n,x;...