default_template.cpp

#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef long double ld;

#define mp make_pair
#define pub push_back
#define puf push_front
#define pob pop_back
#define pof pop_front
#define ins insert
#define f first
#define s second
#define lb lower_bound
#define ub upper_bound

#define sz(x) (size_t)x.size()
#define all(x) begin(x), end(x)
#define rsz resize

const ll INF = 1e18;
const ld PI = 4*atan((ld)1);
const int MOD = 1e9 + 7;

#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
template <typename T>
using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
#define ook order_of_key
#define fbo find_by_order

//file IO
ifstream fin("");
ofstream fout("");

int main(){
	//std IO
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
}
//Keep It Simple, Stupid!