Submission #1242637

#TimeUsernameProblemLanguageResultExecution timeMemory
1242637JelaByteEngineerCombo (IOI18_combo)C++20
Compilation error
0 ms0 KiB
#include <bits/stdc++.h> #include "combo.h" #define ll long long using namespace std; string guess_sequence (int N) { string s=""; int res=press("AX"); if (res==0) { if (press("B")==1) s+='B'; else s+='Y'; } else if (res==1) { if (press("X")==1) s+='X'; else s+='A'; } else s+='A'; if (N==1) return res; char c=s[0]; vector <char> mog(3); if (c=='A') mog={'B', 'X', 'Y'}; else if (c=='B') mog={'A', 'X', 'Y'}; else if (c=='X') mog={'A', 'B', 'Y'}; else mog={'A', 'B', 'X'}; for (int i=1; i<=N; i++) { if (s.size()==N-1) break; string p=(s+mog[1])+(s+mog[2]+mog[1])+(s+mog[2]+mog[0])+(s+mog[2]+mog[2]); int res=press(p); if (res==s.size()) s+=mog[0]; else if (res==s.size()+1) s+=mog[1]; else if (res==s.size()+2) s+=mog[2]; } if (press(s+'X')==s.size()) { if (press(s+'Y')==s.size()) s+='B'; else s+='Y'; } else s+='X'; return s; }

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:20:22: error: could not convert 'res' from 'int' to 'std::string' {aka 'std::__cxx11::basic_string<char>'}
   20 |     if (N==1) return res;
      |                      ^~~
      |                      |
      |                      int