Submission #875029

#	Time	Username	Problem	Language	Result	Execution time	Memory
875029		amin_2008	Combo (IOI18_combo)	C++17	Compilation error	0 ms	0 KiB

combo

#pragma GCC optimize ("O3")
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx,avx2,fma")
#include <bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>

// author: amin_2008

#define ios          ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0)
#define ll           long long
#define vi           vector<int>
#define vs           vector<string>
#define vc           vector<char>
#define vl           vector<ll>
#define all(v)       v.begin(), v.end()
#define rall(v)      v.rbegin(), v.rend()
#define pb           push_back
#define bpc          __builtin_popcount
#define pii          pair<int, int>
#define pll          pair<ll, ll>
#define piii         pair<pii, int>
#define vpii         vector<pii>
#define vpll         vector<pll>
#define vvpii        vector<vpii>
#define vvi          vector<vector<int>>
#define vvl          vector<vector<ll>>
#define ins          insert
#define ts           to_string
#define F            first
#define S            second
#define lb           lower_bound
#define ub           upper_bound
#define ld           long double
#define ull          unsigned long long
#define endl         '\n'
#define int          ll

using namespace std;
using namespace __gnu_pbds;
using namespace __cxx11;
template<class T> using ordered_set = tree<T, null_type,less<T>, rb_tree_tag,tree_order_statistics_node_update>;

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

const ll inf = 2e5 * 1e9;
const int mod = 1e9+7;
const int sz = 2e5+5;
const int N = 5001;
const int logg = 18;
const int P = 40000005;
const ll M = 4;

int a[sz];
const char fl[] = "ABXY";

string guess_sequence(int n)
{
    int f[M];
    string s;
    for(int i = 0; i < n; i++) 
    {
        for(int j = 0; j < M; j++)
            f[j] = press(s + fl[j]);
        for(int j = 0; j < M; j++)
        {
            if ( f[j] == i + 1 ) 
            {
                s += fl[j];
                break;
            }
        }
    }
    return s;
}

void solve()
{
    
}

signed main()
{
    ios;
    //precompute();
    int t = 1;
    //cin >> t;
    while(t--){
        solve();
    }
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(long long int)':
combo.cpp:64:20: error: 'press' was not declared in this scope
   64 |             f[j] = press(s + fl[j]);
      |                    ^~~~~