제출 #914273

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
914273		Aiperiii	Combo (IOI18_combo)	C++14	100 / 100	12 ms	1968 KiB

combo

#include <bits/stdc++.h>
#include "combo.h"
using namespace std;
string guess_sequence(int N) {
    string s="",t="";
    if(press("AB")>=1){
        if(press("A")==1){
            s+='A';
            t="BXY";
        }
        else{
            s+='B';
            t="AXY";
        }
    }
    else{
        if(press("X")==1){
            s+='X';
            t="ABY";
        }
        else{
            s+='Y';
            t="ABX";
        }
    }
    for(int i=0;i<N-2;i++){
        string x=s+t[0]+s+t[1]+t[0]+s+t[1]+t[1]+s+t[1]+t[2];
        int pr=press(x);
        if(pr==s.size())s+=t[2];
        else if(pr==s.size()+1)s+=t[0];
        else s+=t[1];
    }
    if(N>1){
        string x=s+"A"+s+"B";
        if(press(x)==s.size()+1){
            x=s+"A";
            if(press(x)==s.size()+1){
                s+='A';
            }
            else{
                s+='B';
            }
        }
        else{
            x=s+"X";
            if(press(x)==s.size()+1){
                s+='X';
            }
            else{
                s+='Y';
            }
        }
    }
    return s;
}

컴파일 시 표준 에러 (stderr) 메시지

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:29:14: 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(pr==s.size())s+=t[2];
      |            ~~^~~~~~~~~~
combo.cpp:30:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |         else if(pr==s.size()+1)s+=t[0];
      |                 ~~^~~~~~~~~~~~
combo.cpp:35:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |         if(press(x)==s.size()+1){
      |            ~~~~~~~~^~~~~~~~~~~~
combo.cpp:37:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |             if(press(x)==s.size()+1){
      |                ~~~~~~~~^~~~~~~~~~~~
combo.cpp:46:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |             if(press(x)==s.size()+1){
      |                ~~~~~~~~^~~~~~~~~~~~

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