A general code template for programming contests with implementations of commonly used functions

template.cpp

// DATE: @DATE
// Code *NAME_HERE* prepared for *auction* by Jishan Shaikh via template.
// To be run by C++14 GCC/CLANG/MSVS compiler, (maybe) not compatible for C++11
// Last updated: December 17, 2018 (https://github.com/jishanshaikh4/cpp14-template/commit/63b8aa993ae58d62ea3cb467a398692f3aad9117)
// Works on most of the competitions platforms with minor tweaks

#include <bits/stdc++.h>

#define mod 			1000000007
#define fastio() 		ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
#define ll 			    long long
#define mp(x, y) 		make_pair(x, y)
#define f 			    first
#define s 			    second
#define sd(x) 			scanf("%d", &x)
#define sd2(x, y) 		scanf("%d%d", &x, &y)
#define sd3(x, y, z) 	scanf("%d%d%d", &x, &y, &z)
#define sdl(x) 			scanf("%lld", &x)
#define sdl2(x, y) 		scanf("%lld%lld", &x, &y)
#define sdl3(x, y, z) 	scanf("%lld%lld%lld", &x, &y, &z)
#define pb(x) 			push_back(x)
#define endl            "\n"

#define gc			    getchar_unlocked
#ifndef getchar_unlocked
	#define getchar_unlocked 	getchar
#endif

using namespace std;

string inttostr(ll str) {
	stringstream stream;
	stream << str;
	return stream.str();
}

ll modexpo(ll a,ll b,ll n) {
	ll d = 1;
	while(b) {
		if(b & 1)
			d = (d*a) % n;
		b >>= 1;
		a = (a*a) % n;
	}
	return d;
}

ll expo(ll a, ll b) {
	ll d = 1;
	while(b) {
		if(b & 1)
			d *= a;
		b >>= 1;
		a *= a;
	}
	return d;
}

ll gcd(ll a, ll b) {
	return b ? gcd(b, a%b) : a;
}

ll lcm(ll a, ll b) {
	return (a * b) / gcd(a, b);
}

ll inv(ll a, ll m) {
	return modexpo(a, m-2, m);
}

void parr(ll a[], ll n) {
	for(int i=0; i<n; i++)
		cout << a[i] << " ";
	cout << endl;
}

template <typename T>
void gi(T &r) {
	r = 0;
	char input = gc();
	int kl = 1;
	while(input < '0' || input > '9') {
		if(input == '-')
			kl = -1;
		input = gc();
	}
	while('0' <= input && input <= '9')
		r = (r << 3) + (r << 1) + (input - '0'), input = gc();
	if(kl < 1)
		r = -r;
}

void gs(string &r) {
	r.clear();
	char input = gc();
	while(!isgraph(input))
		input = gc();
	while(isgraph(input)) {
		r.push_back(input);
		input = gc();
	}
}

signed main() {
	fastio();
	int i = 0, j = 0, k = 0;
	string s = "";
	gi(i);
	gi(j);
	gi(k);
	gs(s);
	cout << i << endl << j << endl << k << endl;
	cout << s;
	int t;
	cin >> t;
	while(t--) {
		int n;
		cin >> n;
		vector <int> arr(n, 0);
		for(int i = 0; i < n; i++)
			cin >> arr[i];
		for(int i = 0; i < n; i++)
			cout << arr[i] << " ";
		cout << endl;
	}
	return 0;
}