Submission #1022632

#	Time	Username	Problem	Language	Result	Execution time	Memory
1022632		Joshi503	Combo (IOI18_combo)	C++14	Compilation error	0 ms	0 KiB

combo

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

string aux(string k, string ca){
	string ka=k;
	string k1=k;
	ka+=ca[0];
	ka+=k;
	ka+=ca[1];
	ka+=ca[0];
	ka+=k;
	ka+=ca[1];
	ka+=ca[1];
	ka+=k;
	ka+=ca[1];
	ka+=ca[2];
	int res=press(ka);
	res-= (int)k.size();
	if(res == 2){
		k1+=ca[1];
	}else if(res == 1){
		k1+=ca[0];
	}else{
		k1+=ca[2];
	}
	return k1;
}


string guess_sequence(int N){
	string ans="AB";
	string k="";
	if(press(ans) == 1){
		ans="A";
		if(press(ans) == 1){
			k="A";
		}else{
			k="B";
		}
	}else{
		ans="X";
		if(press(ans) == 1){
			k="X";
		}else{
			k="Y";
		}
	}
	char car= k[0];
	string c="ABXY";
	string ca="aaa";
	int j=0;
	for(int i=0; i<4; i++){
		if(c[i]==car){
			continue;
		}else{
			ca[j]=c[i];
			j++;
		}
	}
	for(int i=1; i<n-1; i++){
		k=aux(k,ca);
	}
	ans=k;
	string k1=k;
	k1+=ca[0];
	k1+=k;
	k1+=ca[1];
	if(press(k1) == (int)k.size() +1){
		k1=k;
		k1+=ca[0];
		if(press(k1) == (int)k.size() +1){
			ans=k1;
		}else{
			ans+=ca[1];
		}
	}else{
		ans+=ca[2];
	}
	return ans;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:61:17: error: 'n' was not declared in this scope
   61 |  for(int i=1; i<n-1; i++){
      |                 ^