Submission #1098708

#	Time	Username	Problem	Language	Result	Execution time	Memory
1098708		aren_dance	Combo (IOI18_combo)	C++14	Compilation error	0 ms	0 KiB

combo

#include <bits/stdc++.h>
using namespace std;
int press(string p);
string guess_sequence(int N){
    int n=N;
    string s="";
    string l1="";
    l1+='A';
    string l2="";
    string l3="";
    l2+='B';
    l3+='X';
    char c=;
    if(press(l1)==1){
        s+=l1;
        c='A';
    }
    else if(press(l2)==1){
        s+=l2;
        c='B';
    }
    else if(press(l3)==1){
        s+=l3;
        c='X';
    }
    else{
        s+='Y';
        C='Y';
    }
    for(int i=1;i<=n;++i){
        if(c=='A'){
            string vec=s+'B'+s+'B'+s+'X';
            int kal=press(vec);
            if(kal==0){
                s+='Y';
            }
            if(kal==1){
                s+='X';
            }
            if(kal==2){
                s+='B';
                s+='B';
            }
        }
        if(c=='B'){
            string vec=s+'A'+s+'A'+s+'X';
            int kal=press(vec);
            if(kal==0){
                s+='Y';
            }
            if(kal==1){
                s+='X';
            }
            if(kal==2){
                s+='A';
            }
        }
        if(c=='X'){
            string vec=s+'A'+s+'A'+s+'B';
            int kal=press(vec);
            if(kal==0){
                s+='Y';
            }
            if(kal==1){
                s+='B';
            }
            if(kal==2){
                s+='A';
            }
        }
        if(c=='Y'){
            string vec=s+'A'+s+'A'+s+'B';
            int kal=press(vec);
            if(kal==0){
                s+='X';
            }
            if(kal==1){
                s+='B';
            }
            if(kal==2){
                s+='A';
            }
        }
    }
    return s;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:13:12: error: expected primary-expression before ';' token
   13 |     char c=;
      |            ^
combo.cpp:28:9: error: 'C' was not declared in this scope
   28 |         C='Y';
      |         ^