My competitive programming template

template.cpp

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

#define FAST_IO() do {					  \
			ios_base::sync_with_stdio(false); \
			cin.tie(NULL);			  \
			cout.tie(NULL);			  \
		  } while (0);
#define start_routine() int begtime = clock();
#define end_routine() do {						    \
			int endtime = clock();				    \
			cerr << "\n\n" << "Time elapsed: "		    \
			     << (endtime - begtime) * 1000 / CLOCKS_PER_SEC \
			     << " ms\n\n";				    \
		      } while (0);

#define ll long long int
#define ull unsigned long long int
#define db long double
#define ff first
#define ss second
#define MP make_pair
#define pb push_back
#define lb lower_bound
#define ub upper_bound
#define pii pair<int, int>
#define pdd pair<db, db>
#define pll pair<ll, ll>
#define vpl vector<pll>
#define vll vector<ll>
#define mod 1000000007
#define mod1 998244353
#define inf 1000000000000000007
#define eps 0.000001
#define stp fixed << setprecision(20)
#define endl '\n'

#define codejam 0
#define APNA_IO

void solve() {
}

int main() {
	FAST_IO();
	#ifdef APNA_IO
		start_routine();
		freopen("input.txt", "r", stdin);
		freopen("output.txt", "w", stdout);
	#endif

	ll t;
	cin >> t;

	for (ll i = 1; i <= t; ++i) {
		if (codejam)
			cout << "Case #" << i << ": ";
		solve();
	}

	#ifdef APNA_IO
		end_routine();
	#endif

	return 0;
}