Submission #1023295

#	Time	Username	Problem	Language	Result	Execution time	Memory
1023295		vanea	Combo (IOI18_combo)	C++17	Compilation error	0 ms	0 KiB

combo

#include <bits/stdc++.h>
using namespace std;
using ll = long long;

string guess_sequence(int n) {
    string pos = "ABXY";
    char beg;
    for(auto it : pos) {
        string s(n, it);
        int k = press(s);
        if(k == 1) beg = it;
    }
    string ans(n, beg);
    int last = 1;
    for(int i = 1; i < n; i++) {
        for(auto it : pos) {
            if(it == beg) continue;
            ans[i] = it;
            int curr = press(ans);
            if(curr == last+1) break;
        }
        last++;
    }
    return ans;
}

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:10:17: error: 'press' was not declared in this scope
   10 |         int k = press(s);
      |                 ^~~~~
combo.cpp:19:24: error: 'press' was not declared in this scope
   19 |             int curr = press(ans);
      |                        ^~~~~