自分用競プロc++

# include<bits/stdc++.h>
using namespace std;
# define pb push_back
# define pf push_front

typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;

# define mp make_pair
# define fi first
# define se second
typedef pair<int,int> pint;
# define All(s) s.begin(),s.end()
# define rAll(s) s.rbegin(),s.rend()
# define REP(i,a,b) for(int i=a;i<b;i++)
# define rep(i,n) REP(i,0,n)

int main()
{
    return 0;
}