제출 #445490

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
445490		PiejanVDC	콤보 (IOI18_combo)	C++17	30 / 100	51 ms	552 KiB

combo

#include <combo.h>
#include <bits/stdc++.h>
using namespace std;

string guess_sequence(int n) {
    //for the first character
    string s="";
    if(press("A")) {
        s+='A';
    }
    else if(press("B")) {
        s+='B';
    } else if(press("X")) {
        s+='X';
    } else {
        s+='Y';
    }
    vector<char>str={'A','B','X','Y'};
    while(s.length() < n) {
        int ask=0;
        for(auto z : str) {
            if(z != s[0]) {
                ask++;
                if(ask == 3) {
                    s+=z; break;
                }
                string prev = s;
                s+=z;
                if(press(s) == s.length()) {
                    break;
                }
                s=prev;
            }
        }
    }
    return s;
}

컴파일 시 표준 에러 (stderr) 메시지

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:19:22: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   19 |     while(s.length() < n) {
      |           ~~~~~~~~~~~^~~
combo.cpp:29:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |                 if(press(s) == s.length()) {
      |                    ~~~~~~~~~^~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 25 / 95