제출 #587802

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
587802		IvanJ	콤보 (IOI18_combo)	C++17	0 / 100	1 ms	208 KiB

combo

#include "combo.h"
#include<bits/stdc++.h>

#define all(a) (a).begin(), (a).end()

using namespace std;

string guess_sequence(int n) {
	string p = "", s = "";
	if(press("A")) s = "A";
	else if(press("B")) s = "B";
	else if(press("X")) s = "X";
	else s = "Y";
  
	set<string> S;
	S.insert("A"), S.insert("B"), S.insert("X"), S.insert("Y");
	S.erase(s);
	vector<string> v(all(S));
	for(int i = 1;i < n - 1;i++) {
		p = s + v[0];
		for(int j = 0;j < 3;j++) 
			p += s + v[1] + v[j];
		int x = press(p);
		if(x == s.size() + 1) s += v[0];
		else if(x == s.size() + 2) s += v[1];
		else s += v[2];
	}
	
	if(press(s + "A")) s += "A";
	else if(press(s + "B")) s += "B";
	else if(press(s + "X")) s += "X";
	else s += "Y";
	return s;
}

컴파일 시 표준 에러 (stderr) 메시지

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:24:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |   if(x == s.size() + 1) s += v[0];
      |      ~~^~~~~~~~~~~~~~~
combo.cpp:25:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |   else if(x == s.size() + 2) s += v[1];
      |           ~~^~~~~~~~~~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 95