제출 #101622

#제출 시각아이디문제언어결과실행 시간메모리
101622ToMmyDong콤보 (IOI18_combo)C++11
100 / 100
57 ms592 KiB
#include "combo.h" #include <bits/stdc++.h> using namespace std; char c[] = {'A','B','X','Y'}; char head() { if (press("AB") > 0) { if (press("A")) { return 'A'; } else { return 'B'; } } else { if (press("X")) { return 'X'; } else { return 'Y'; } } } char tc[3]; std::string guess_sequence(int N) { string S; int h = head(); S += h; int cnt = 0; for (int i=0;i<4;i++) { if (c[i] != h) { tc[cnt++] = c[i]; } } for (int i=1;i<N-1;i++) { string q; q += S + tc[0]; for (int j=0;j<3;j++) { q += S+tc[1]+tc[j]; } int ret = press(q); if (ret == int(S.size())) { S += tc[2]; } else if (ret == int(S.size())+1) { S += tc[0]; } else { S += tc[1]; } } if (N > 1) { for (int i=0;i<2;i++) { if (press(S+tc[i]) == N) { S += tc[i]; break; } } if (S.size() != N) { S += tc[2]; } } return S; }

컴파일 시 표준 에러 (stderr) 메시지

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:57:18: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   57 |     if (S.size() != N) {
      |         ~~~~~~~~~^~~~
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