제출 #919585

#제출 시각아이디문제언어결과실행 시간메모리
919585Khanhcsp2콤보 (IOI18_combo)C++14
컴파일 에러
0 ms0 KiB
//#include "combo.h" #include <bits/stdc++.h> #define el '\n' #define fi first #define sc second //#define int long long using namespace std; using ll=long long; using ull=unsigned long long; using ld=long double; const int mod=1e9+7; //const int N=1e5+11; //namespace { // //constexpr int MAX_N = 2000; //constexpr int MAX_NUM_MOVES = 8000; // //int N; //std::string S; // //int num_moves; // //void wrong_answer(const char *MSG) { // printf("Wrong Answer: %s\n", MSG); // exit(0); //} // //} // namespace // //int press(std::string p) { // if (++num_moves > MAX_NUM_MOVES) { // wrong_answer("too many moves"); // } // int len = p.length(); // if (len > 4 * N) { // wrong_answer("invalid press"); // } // for (int i = 0; i < len; ++i) { // if (p[i] != 'A' && p[i] != 'B' && p[i] != 'X' && p[i] != 'Y') { // wrong_answer("invalid press"); // } // } // int coins = 0; // for (int i = 0, j = 0; i < len; ++i) { // if (j < N && S[j] == p[i]) { // ++j; // } else if (S[0] == p[i]) { // j = 1; // } else { // j = 0; // } // coins = std::max(coins, j); // } // return coins; //} string guess_sequence(int n) { string s="ABXY", ans=""; int ch, pos; ch=press("AB"); if(ch) { int v=press("A"); if(v) pos=0; else pos=1; } else { int v=press("X"); if(v) pos=2; else pos=3; } ans+=s[pos]; if(n==1) return ans; swap(s[pos], s[3]); for(int i=1;i<n-1;i++) { string tmp=ans+s[0]+s[0]+ans+s[0]+s[1]+ans+s[0]+s[2]+ans+s[1]; // cout << tmp << el; int l=press(tmp); // cout << l << el; if(l==i+2) ans+=s[0]; else if(l==i+1) ans+=s[1]; else ans+=s[2]; } // cout << ans << el; if(press(ans+s[0])==n) return ans+s[0]; else if(press(ans+s[1])==n) return ans+s[1]; else return ans+s[2]; } //int main() { // cin >> S; // N = S.length(); // // num_moves = 0; // std::string answer = guess_sequence(N); // if (answer != S) { // wrong_answer("wrong guess"); // exit(0); // } // printf("Accepted: %d\n", num_moves); // return 0; //}

컴파일 시 표준 에러 (stderr) 메시지

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:60:8: error: 'press' was not declared in this scope
   60 |     ch=press("AB");
      |        ^~~~~
combo.cpp:58:14: warning: control reaches end of non-void function [-Wreturn-type]
   58 |     string s="ABXY", ans="";
      |              ^~~~~~