제출 #787195

#제출 시각아이디문제언어결과실행 시간메모리
787195resolve100콤보 (IOI18_combo)C++14
0 / 100
1 ms208 KiB
#include<bits/stdc++.h> #include "combo.h" #define ll long long #define ull unsigned ll #define pb push_back #define fast ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0) #define read_file freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); using namespace std; string chars[] = {"A", "B", "X", "Y"}; string guess_sequence(int N){ string out; if (N == 0) return out; int no; for (int i = 0; i < 3; i++){ int num = press(chars[i]); if (num){ out.append(chars[i]); no = i; break; } } if (out.size() == 0) { out.append(chars[3]); no = 3; } for (int i = 1; i < N; i++){ if (no == 3){ for (int i = 0; i < 2; i ++){ int num = press(out+chars[i]); if (num == i+1){ out.append(chars[i]); break; } } if (out.size() == i) out.append(chars[2]); } else{ for (int j = 0; j < 3; j++){ if (i == j) continue; int num = press(out+chars[i]); if (num == i+1){ out.append(chars[i]); break; } } if (out.size() == i) out.append(chars[3]); } } return out; }

컴파일 시 표준 에러 (stderr) 메시지

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:41:19: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   41 |    if (out.size() == i) out.append(chars[2]);
      |        ~~~~~~~~~~~^~~~
combo.cpp:52:19: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   52 |    if (out.size() == i) out.append(chars[3]);
      |        ~~~~~~~~~~~^~~~
combo.cpp:33:3: warning: 'no' may be used uninitialized in this function [-Wmaybe-uninitialized]
   33 |   if (no == 3){
      |   ^~
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