Submission #367798

#	Time	Username	Problem	Language	Result	Execution time	Memory
367798		mashrur_hossain	Combo (IOI18_combo)	C++14	Compilation error	0 ms	0 KiB

combo

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

string guess_sequence(int n){
	string s = "";
	string a = "ABXY";
	if(press("AB")){
		if(press("A")){
			a.erase(a.begin());
			s+="A";
		}
		else{
			a.erase(a.begin()+1);
			s+="B";
		}
	}
	else{
		if(press("X")){
			a.erase(a.begin()+2);
			s+='X';
		}
		else{
			s+="Y";
			a.erase(a.begin()+3);
		}
	}
	// D(s);
	for(int i = 1;i<n-1;i++){
		string guess = "";
		for(int j = 0;j<4;j++){
			guess+= s + a[0] + a[j];
		}
		guess+=s+a[1];
		int x = press(guess);
		if(x == i)s+=a[2];
		else if(x==i+1)s+=a[1];
		else if(x==i+2)s+=a[0];
	}

	if(press(s+a[0]+s+a[1]) == n){
		if(press(s+a[0]) == n){
			s+= a[0];
		}else{
			s+=a[1];
		}
	}
	else{
		s+=a[2];
	}
	return s;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:8:5: error: 'press' was not declared in this scope
    8 |  if(press("AB")){
      |     ^~~~~
combo.cpp:35:11: error: 'press' was not declared in this scope
   35 |   int x = press(guess);
      |           ^~~~~
combo.cpp:41:5: error: 'press' was not declared in this scope
   41 |  if(press(s+a[0]+s+a[1]) == n){
      |     ^~~~~