Submission #849460

#	Time	Username	Problem	Language	Result	Execution time	Memory
849460		Bach21	Combo (IOI18_combo)	C++14	Compilation error	0 ms	0 KiB

combo

#include <bits/stdc++.h>
using namespace std;
#define REP(i, n) for (int i = 0; i < (n); i++)

const int M = 4;
const char LET[] = "ABXY";

string guess_sequence(int N) {
    int len[M];
    string s;

    REP(i, N) {
        REP(j, M) {
            len[j] = press(s + LET[j]);
        }
        REP(j, M) {
            if (len[j] == i+1) {
                s += LET[j];
                break;
            }
        }
    }

    return s;
}
signed main()
{
    int n;
    cin >> n;
    cout << guess_sequence(n);
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:14:22: error: 'press' was not declared in this scope
   14 |             len[j] = press(s + LET[j]);
      |                      ^~~~~