Hi! I'd like to share with the community the template I use for competing in Codeforces rounds. It's very simple, so is easier to learn to use it.

I hope it helps someone :-)

#include <bits/stdc++.h>
#define mp make_pair
#define lb lower_bound
#define ub upper_bound
#define pb push_back
#define fi first
#define se second
#define rep(i, a, b) for(int i=a;i<b;++i)
#define all(x) x.begin(), x.end()
#define sz(v) (int)(v.size())
#define feq(a, b) (fabs(a - b) < eps)
using namespace std;
typedef long long ll;
typedef vector<ll> vll;
typedef vector<vll> vvll;
typedef pair<ll,ll> pll;
typedef vector<pll> vpll;
typedef long double ld;

const ll INF = 1e18, MOD = 1e9+7;
const int int_max = 1e9;
const ld eps = 1e-9;

void solve() {
	
}
int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	int T = 1;
	cin>>T;//You can comment this if you don't need it
	while(T--) {
		solve();
	}
}