摘要：
#include<bits/stdc++.h> using namespace std; #define rg register inline int read(){ rg char ch=getchar(); rg int x=0,f=0; while(!isdigit(ch)) f|=(ch== 阅读全文
摘要：
fhq Treap #include <bits/stdc++.h> using namespace std; #define rg register #define I inline #define gc getchar #define rep(i, a, b) for(int i = a; i 阅读全文