Language: C++

#pragma GCC target("sse,sse2,sse3,ssse3,sse4,sse4.1,sse4.2,abm,mmx,avx,avx2,popcnt,tune=native")
#pragma GCC optimize("SEX_ON_THE_BEACH")	
//#pragma GCC optimize("fast-math")
#pragma GCC optimize("unroll-loops")
#pragma comment(linker, "/STACK:36777216")

#define _CRT_SECURE_NO_WARNINGS
#include <chrono>
#include <set>
#include <map>
#include <deque>
#include <cmath>
#include <queue>
#include <cassert>
#include <random>
#include <bitset>
#include <iomanip>
#include <numeric>
#include <time.h>//////////////
#include <ctime>
#include <string>
#include <cstdio>
#include <vector>
#include <cstdlib>
#include <iostream>
#include <algorithm>
#include <unordered_map>
#include <unordered_set>
//++--+i+--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++-l-++--++--++--++--++--++--++--++--++--++--++--++--++
#define endl '\n'
#define mp make_pair
#define pbc push_back
#define pob pop_back()
#define empb emplace_back
#define queuel queue<long long>
#define sqr(a) ((a) * (a))
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define pin(p) cin >> p.first >> p.second;
#define uniq(a) sort(all(a));(a).resize(unique(all(a)) - a.begin());
#define rev(v) reverse(v.begin(), v.end());
#define sout(s, c) for (auto i : s) cout << i << c;
#define pout(p) cout << p.first << " " << p.second;
#define er(v, l, r) erase(v.begin() + l, v.begin() + r);
#define vin(v) for (ll i = 0; i < v.size(); ++i) cin >> v[i];
#define vout(v, c) for (int i = 0; i < v.size(); ++i) cout << v[i] << c;
#define pushi(v, a) for (int i = 0; i < a.size(); ++i) v.push_back(a[i]);
#define fastio() ios_base::sync_with_stdio(0); cout.tie(0); cin.tie(0); srand(time(NULL))
#define sp system("pause")
//o++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--+v+--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++--++
using namespace std;

//++-e-++--++--++--++--++--++--++--s++--++--++--++--++--++--++--++--++--++--++--++--++--++-p-++--++--++--++--++--++--++--++--++--++--++--++--++--++--++-a-++--++--++--++--++--++--++--++--++--++--++
typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
//+c+--++--++--++--++--++--++--++--++e--++--++--++--++--++--++--++--++--++--++--++l--++--++--++--++--++--++--++--++--++--++--++--++--+e+--++--++--++--++--++-++--++--++--++--++--++--++--++-o-++--++
const ld EPS = 1e-5;
const ld PI = acos(-1);
int mod = (int)998244353;
const int MOD7 = 1000000007;
const int MOD9 = 1000000009;
const int a228 = 18;
const ll kekmod = 1791791791;
const ll bestmod = 1148822869;
vector<ll> mods = { kekmod,bestmod,mod,MOD9,1000000007 };
vector<ll> hashpows = { 29,31,37,43,47,53,179,229 };
mt19937 rnd(chrono::high_resolution_clock::now().time_since_epoch().count() + 228 + 'i' + 'q' + 1337 + 1488);
ll MOD = mods[rnd() % mods.size()];
ll hashpow = hashpows[rand() % hashpows.size()];

signed main()
{
	fastio();
	int r;
	cin >> r;
	cout << r * r;
	sp;
}


Compiler output:
a.cc:2:40: warning: bad option '-fSEX_ON_THE_BEACH' to pragma 'optimize' [-Wpragmas]
    2 | #pragma GCC optimize("SEX_ON_THE_BEACH")
      |                                        ^
a.cc:72:13: warning: bad option '-fSEX_ON_THE_BEACH' to attribute 'optimize' [-Wattributes]
   72 | signed main()
      |             ^
In file included from /usr/include/c++/14/bits/stl_tree.h:64,
                 from /usr/include/c++/14/set:62,
                 from a.cc:9:
/usr/include/c++/14/bits/allocator.h: In destructor 'std::_Vector_base<long long int, std::allocator<long long int> >::_Vector_impl::~_Vector_impl()':
/usr/include/c++/14/bits/allocator.h:182:7: error: inlining failed in call to 'always_inline' 'std::allocator< <template-parameter-1-1> >::~allocator() noexcept [with _Tp = long long int]': target specific option mismatch
  182 |       ~allocator() _GLIBCXX_NOTHROW { }
      |       ^
In file included from /usr/include/c++/14/vector:66,
                 from /usr/include/c++/14/queue:63,
                 from a.cc:13:
/usr/include/c++/14/bits/stl_vector.h:132:14: note: called from here
  132 |       struct _Vector_impl
      |              ^~~~~~~~~~~~