제출 #776270

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
776270		Lobo	콤보 (IOI18_combo)	C++17	5 / 100	1 ms	208 KiB

combo

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

using namespace std;

string guess_sequence(int N) {
	string ans;
	string a = "ABXY";
	for(int i = 0; i < 4; i++) {
		if(i == 3) {
			ans = a[i];
			a.erase(a.begin()+i,a.begin()+i+1);
			break;
		}
		string ask;
		ask+= a[i];
		if(press(ask)) {
			ans = a[i];
			a.erase(a.begin()+i,a.begin()+i+1);
			break;
		}
	}


	for(int i = 1; i < N-1; i++) {
		string ask;
		ask = ans + a[0] + a[0];
		ask+= ans + a[0] + a[1];
		ask+= ans + a[0] + a[2];
		ask+= ans + a[1];


		int c = press(ask);
		if(c == ans.size()) ans+= a[2];
		else if(c == ans.size()+1) ans+= a[1];
		else if(c == ans.size()+2) ans+= a[0];
		else assert(false);
	}

	if(press(ans+a[0]) == N) return ans+a[0];
	else if(press(ans+a[1]) == N) return ans+a[1];
	else return ans+a[2];
}

컴파일 시 표준 에러 (stderr) 메시지

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:34:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |   if(c == ans.size()) ans+= a[2];
      |      ~~^~~~~~~~~~~~~
combo.cpp:35:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |   else if(c == ans.size()+1) ans+= a[1];
      |           ~~^~~~~~~~~~~~~~~
combo.cpp:36:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |   else if(c == ans.size()+2) ans+= a[0];
      |           ~~^~~~~~~~~~~~~~~

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