Submission #585236

#	Time	Username	Problem	Language	Result	Execution time	Memory
585236		haxorman	Combo (IOI18_combo)	C++14	10 / 100	56 ms	556 KiB

combo

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

string guess_sequence(int N) {
	string guess;
	set<char> letters = {'A', 'B', 'X', 'Y'};
	while (guess.size() < N) {
		for (char c : letters) {
			guess += c;

			int coins = press(guess);
			if (coins == guess.size()) {
				break;
			}
			guess.pop_back();
		}

		if (guess.size() == 1) {
			letters.erase(guess.back());
		}
	}
	return guess;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:8:22: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
    8 |  while (guess.size() < N) {
      |         ~~~~~~~~~~~~~^~~
combo.cpp:13:14: 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 (coins == guess.size()) {
      |        ~~~~~~^~~~~~~~~~~~~~~

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