Starry

开O2才可以进1s #include<bits/stdc++.h> using namespace std; using ll=long long; int P; using i64 = long long; // assume -P <= x < 2P int norm(int x) { if (x < 0) { x += P; } if (x >= P) { x -=

把lamda函数换成模板函数可以降到C++17 #include<bits/stdc++.h> using namespace std; using ll=long long; template < typename T, auto op, T e, typename F, auto mapping, auto composition, F e1 > class segtree { int n; vector< T > v; vector< F > lazy;

参考：将线段树封装成模板 线段树封装成模板需要C++20 :) #include<bits/stdc++.h> using namespace std; using ll=long long; template < typename T, auto op, T e, typename F, auto mapping, auto composition, F e1 > class segtree { int n; vector< T > v; vector< F >

以后小t出的题还是赶紧跑，D是个原味大模拟。 #include <bits/stdc++.h> /* #include<ext/pb_ds/assoc_container.hpp> #include<ext/pb_ds/hash_policy.hpp> */ using namespace std; const double eps = 1e-10; const double pi = 3.1415926535897932384626433832795; const

#include<bits/stdc++.h> using namespace std; using ll=long long; ll query(ll x){ cout<<"walk "<<x<<endl; cin>>x; return x; } void guess(ll x){ cout<<"guess "<<x<<endl; exit(0); }