제출 #911378

#제출 시각아이디문제언어결과실행 시간메모리
911378Turcavid콤보 (IOI18_combo)C++14
컴파일 에러
0 ms0 KiB
#include "combo.h" #include <vector> using namespace std; string guess_sequence(int N) { vector<char> v; v.push_back('A'); v.push_back('B'); v.push_back('X'); v.push_back('Y'); int del=4; string sus=""; for(int i=0; i<3; i++) { sus.clear(); sus.push_back(v[i]); if(press(sus) == 1) del=i; } string ans=""; ans+=v[del]; v.erase(v.begin()+del); for(int i=2; i<=N-1; i++) { string qr=""; qr+=(ans+v[1]); qr+=(ans+v[2]+v[0]); qr+=(ans+v[2]+v[1]); qr+=(ans+v[2]+v[2]); cout<<qr<<'\n'; int val=press(qr); if(val == i-1) ans+=v[0]; if(val == i) ans+=v[1]; if(val == i+1) ans+=v[2]; } for(int i=0; i<3; i++) { string qr=ans; qr+=v[i]; if(press(qr) == N) return qr; } }

컴파일 시 표준 에러 (stderr) 메시지

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:32:9: error: 'cout' was not declared in this scope
   32 |         cout<<qr<<'\n';
      |         ^~~~
combo.cpp:3:1: note: 'std::cout' is defined in header '<iostream>'; did you forget to '#include <iostream>'?
    2 | #include <vector>
  +++ |+#include <iostream>
    3 | 
combo.cpp:8:18: warning: control reaches end of non-void function [-Wreturn-type]
    8 |     vector<char> v;
      |                  ^