Submission #1219713

#	Time	Username	Problem	Language	Result	Execution time	Memory
1219713		melody_rules	Combo (IOI18_combo)	C++20	Compilation error	0 ms	0 KiB

combo

#include <bits/stdc++.h>
#include "combo.h"
#define int long long

using namespace std;

string guess_sequence(int N) {
  string p = "";
  string S = "";
  
  while(true) {
    string q;
    q = p;
    
    p += "A";
    
    if(press(p) == p.length() && p.length() == N)
    break;
    
    else if(press(p) == p.length())
    continue;
    
    p = q;
    
    p += "B";
    
    if(press(p) == p.length() && p.length() == N)
    break;
    
    else if(press(p) == p.length())
    continue;
    
    p = q;
    
    p += "X";
    
    if(press(p) == p.length() && p.length() == N)
    break;
    
    else if(press(p) == p.length())
    continue;
    
    p = q;
    
    p += "Y";
    
    if(p.length() == N)
    break;
  }
  
  return p;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccfOSh0i.o: in function `main':
grader.cpp:(.text.startup+0x4c): undefined reference to `guess_sequence[abi:cxx11](int)'
collect2: error: ld returned 1 exit status