제출 #223709

#제출 시각아이디문제언어결과실행 시간메모리
223709bharat2002콤보 (IOI18_combo)C++14
컴파일 에러
0 ms0 KiB
/*input */ #include "combo.h" //Trace prints the name of the variable and the value. /*int press(string st) { cout<<st<<":";int ret;cin>>ret;return ret; }*/ /*void fl() { string temp=ans; temp+="AB"; int ct=press(temp); ct-=ans.size(); if(ct>0) { temp.pop_back(); ct=press(temp); ct-=ans.size(); if(ct>0) { fc='A'; ans+="A"; } else { ans+="B";fc='B'; } } else { temp.pop_back();temp.pop_back();temp+="X"; ct=press(temp);ct-=ans.size(); if(ct>0) { ans+="X";fc='X'; } else { ans+="Y";fc='Y'; } } }*/ string guess_sequence(int n) { string ans;char fc; ans="";char arr[5]={'A', 'B', 'X', 'Y'}; fl(); char c1='0', c2='0', c3='0'; for(int j=0;j<4;j++) { if(arr[j]==fc) continue; if(c1=='0') c1=arr[j]; else if(c2=='0') c2=arr[j]; else c3=arr[j]; } for(int i=2;i<n;i++) { string temp=ans;temp+=c1;temp+=ans;temp+=c2;temp+=c1;temp+=ans;temp+=c2;temp+=c2;temp+=ans;temp+=c2;temp+=c3; int ct=press(temp); if(ct<i) ans+=c3; else if(ct==i) ans+=c1; else ans+=c2; } fl(); return ans; } /*signed main() { ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL); // guess_sequence(5); // cout<<"Answer:"<<ans; }*/

컴파일 시 표준 에러 (stderr) 메시지

combo.cpp:49:1: error: 'string' does not name a type; did you mean 'stdin'?
   49 | string guess_sequence(int n)
      | ^~~~~~
      | stdin