제출 #281996

#제출 시각아이디문제언어결과실행 시간메모리
281996ec1117콤보 (IOI18_combo)C++17
컴파일 에러
0 ms0 KiB
#include "bits/stdc++.h"; using namespace std; #define pb push_back #define mp make_pair string guess_sequence(int N){ string cur="";//default? int x=press("AB"); if(x==1 || 2){ if(press("A")==1) cur="A"; else cur="B"; } else{ if(press("X")==1)cur="X"; else cur="Y"; } set<string> set={"A","B","X","Y"}; set.erase(cur); while(cur.length()<N){ if(cur.length()==N-1){ if(press(cur+*next(set.begin(),1))==N){ return cur+*next(set.begin(),1); } else if(press(cur+*next(set.begin(),2))==N){ return cur+*next(set.begin(),2); } else{ return cur+*next(set.begin(),3); } } else{ string tmp=cur+*next(set.begin(),1)+*next(set.begin(),1)+cur+*next(set.begin(),1)+*next(set.begin(),2)+cur+*next(set.begin(),1)+*next(set.begin(),3)+cur+*next(set.begin(),2); int x=press(tmp); if(x==cur.length()+2){ cur+=*next(set.begin(),1); } else if(x==cur.length()+1){ cur+=*next(set.begin(),2); } else{ cur+=*next(set.begin(),3); } } } }

컴파일 시 표준 에러 (stderr) 메시지

combo.cpp:1:25: warning: extra tokens at end of #include directive
    1 | #include "bits/stdc++.h";
      |                         ^
combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:9:11: error: 'press' was not declared in this scope
    9 |     int x=press("AB");
      |           ^~~~~
combo.cpp:20:23: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   20 |     while(cur.length()<N){
      |           ~~~~~~~~~~~~^~
combo.cpp:21:24: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   21 |         if(cur.length()==N-1){
      |            ~~~~~~~~~~~~^~~~~
combo.cpp:35:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |             if(x==cur.length()+2){
      |                ~^~~~~~~~~~~~~~~~
combo.cpp:38:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |             else if(x==cur.length()+1){
      |                     ~^~~~~~~~~~~~~~~~
combo.cpp:8:16: warning: control reaches end of non-void function [-Wreturn-type]
    8 |     string cur="";//default?
      |                ^~