Submission #440903

#	Time	Username	Problem	Language	Result	Execution time	Memory
440903		beferith	Combo (IOI18_combo)	C++14	Compilation error	0 ms	0 KiB

combo

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

string guess_sequence(int N){
    const string chr[] = {"A","B","X","Y"};

    string curr = "", first = "";
    for(int i=0;i<N;i++){
        bool found = false;
        for(int j=0;j<3;j++){
            if(chr[j] != first && press(curr + chr[j]) == i+1){
                curr += chr[j];
                found = true;
                break;
            }
        }
        if(!found){
            curr += chr[j];
        }
        if(!i){
            first = curr;
        }
    }
    return curr;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:19:25: error: 'j' was not declared in this scope
   19 |             curr += chr[j];
      |                         ^