Submission #899530

#	Time	Username	Problem	Language	Result	Execution time	Memory
899530		SuPythony	Combo (IOI18_combo)	C++17	Compilation error	0 ms	0 KiB

combo

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

string guess_sequence(int n) {
    vector<string> c={"A","B","X","Y"};
    string ans="";
    for (int i=0; i<4; i++) {
        if (press(c[i])) {
            ans+=c[i];
            c.erase(c.begin()+i);
            break;
        }
    }
    int l=1;
    while (l<n) {
        for (auto i: c) {
            if (press(ans+i)>l) {
                ans+=i;
                l++;
            }
        }
    }
    return ans;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:8:13: error: 'press' was not declared in this scope
    8 |         if (press(c[i])) {
      |             ^~~~~
combo.cpp:17:17: error: 'press' was not declared in this scope
   17 |             if (press(ans+i)>l) {
      |                 ^~~~~