Submission #677057

#	Time	Username	Problem	Language	Result	Execution time	Memory
677057		Toxtaq	Combo (IOI18_combo)	C++17	10 / 100	55 ms	572 KiB

combo

#include<bits/stdc++.h>
using namespace std;
int press(string p);
string guess_sequence(int N){
    string s;
    char fchar;
    if(press("A") == 1)fchar = 'A';
    else if(press("B") == 1)fchar = 'B';
    else if(press("X") == 1)fchar = 'X';
    else fchar = 'Y';
    s += fchar;
    for(int i = 1;i < N;++i){
        if(fchar != 'A' && press(s + 'A') == s.length() + 1)s += 'A';
        else if(fchar != 'B' && press(s + 'B') == s.length() + 1)s += 'B';
        else if(fchar != 'X' && press(s + 'X') == s.length() + 1)s += 'X';
        else if(fchar != 'Y' && press(s + 'Y') == s.length() + 1)s += 'Y';
    }
    return s;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:13:43: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |         if(fchar != 'A' && press(s + 'A') == s.length() + 1)s += 'A';
      |                            ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
combo.cpp:14:48: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |         else if(fchar != 'B' && press(s + 'B') == s.length() + 1)s += 'B';
      |                                 ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
combo.cpp:15:48: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |         else if(fchar != 'X' && press(s + 'X') == s.length() + 1)s += 'X';
      |                                 ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
combo.cpp:16:48: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |         else if(fchar != 'Y' && press(s + 'Y') == s.length() + 1)s += 'Y';
      |                                 ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~

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