Submission #588900

#	Time	Username	Problem	Language	Result	Execution time	Memory
588900		Mahtimursu	Combo (IOI18_combo)	C++17	10 / 100	61 ms	464 KiB

combo

#include "combo.h"

using namespace std;

char opt[] = {'A', 'B', 'X', 'Y'};

string guess_sequence(int N) {
    string p = "";
    
    while (p.length() < N) {
        for (char c : opt) {
            if (p.length() > 0 && c == p[0]) continue;

            if (press(p + c) == p.length() + 1) {
                p += c;
                break;
            }
        }
    }

    return p;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:10:23: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   10 |     while (p.length() < N) {
      |            ~~~~~~~~~~~^~~
combo.cpp:14:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |             if (press(p + c) == p.length() + 1) {
      |                 ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~

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