제출 #696449

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
696449		Elvin_Fritl	콤보 (IOI18_combo)	C++17	컴파일 에러	0 ms	0 KiB

combo

#include "combo.h"
using namespace std;
string guess_sequence(int n) {
    string p = "";
    string s="ABXY";
    for(int i=0;i<3;i++){
        string p1=s[i];
        if(press(p1)==1){
            p=p1;
            break;
        }
    }
    if(p.size()==i){
        p+=s[3];
    }
    string s2="";
    for(int i=0;i<3;i++){
        if(p[0]!=s[i]){
            s2+=s[i];
        }
    }
    s=s2;
    for(int i=1;i<n;i++){
        for(int j=0;j<2;j++){
        string p1=p+s[j];
        if(press(p1)==p1.size()){
            p=p1;
            break;
        }
    }
    if(p.size()==i){
        p+=s[2];
    }
    }
    return p;
}

컴파일 시 표준 에러 (stderr) 메시지

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:7:22: error: conversion from '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'} to non-scalar type 'std::string' {aka 'std::__cxx11::basic_string<char>'} requested
    7 |         string p1=s[i];
      |                      ^
combo.cpp:13:18: error: 'i' was not declared in this scope
   13 |     if(p.size()==i){
      |                  ^
combo.cpp:26:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |         if(press(p1)==p1.size()){
      |            ~~~~~~~~~^~~~~~~~~~~
combo.cpp:31:16: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   31 |     if(p.size()==i){
      |        ~~~~~~~~^~~