Submission #1164858

#	Time	Username	Problem	Language	Result	Execution time	Memory
1164858		chikien2009	Combo (IOI18_combo)	C++20	Compilation error	0 ms	0 KiB

combo

#include <bits/stdc++.h>

using namespace std;

inline void setup()
{
#ifndef ONLINE_JUDGE
    freopen("test.inp", "r", stdin);
    freopen("test.out", "w", stdout);
#endif
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
}

// int press(string inp)
// {
//     cout << inp << "\n";
//     int res;
//     cin >> res;
//     return res;
// }

string guess_sequence(int N)
{
    string base = "ABXY", res;
    int cur;
    cur = press(base.substr(0, 2));
    if (cur == 1)
    {
        cur = press("A");
        if (cur == 1)
        {
            res = "A";
            base.erase(0, 1);
        }
        else
        {
            res = "B";
            base.erase(1, 1);
        }
    }   
    else
    {
        cur = press("X");
        if (cur == 1)
        {
            res = "X";
            base.erase(2, 1);
        }
        else
        {
            res = "Y";
            base.erase(3, 1);
        }
    }
    for (int i = 2; i <= N; ++i)
    {
        if (press(res + base[0]) == res.size() + 1)
        {
            res += base[0];
        }
        else if (press(res + base[1]) == res.size() + 1)
        {
            res += base[1];
        }
        else
        {
            res += base[2];
        }
    }
    return res;
}

// int main()
// {
//     // setup();

//     int N;
//     cin >> N;
//     cout << guess_sequence(N);
//     return 0;
// }

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:28:11: error: 'press' was not declared in this scope; did you mean 'res'?
   28 |     cur = press(base.substr(0, 2));
      |           ^~~~~
      |           res