Submission #1008476

#	Time	Username	Problem	Language	Result	Execution time	Memory
1008476		nickolasarapidis	Combo (IOI18_combo)	C++17	0 / 100	0 ms	344 KiB

combo

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

string guess_sequence(int N){
	string S = "";
	int first = 5;

	char buttons[4] = {'A', 'B', 'X', 'Y'};

	for(int i = 0; i < N; i++){
		for(int j = 0; j < 3; j++){
			if(j != first){
				if(press(S + buttons[j]) == i + 1){
					S += buttons[j];
					if(i == 0){
						first = j;
					}
					break;
				}
			}

			if(S.size() == i){
				S += buttons[3];
			}
		}
	}

	return S;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:23:16: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   23 |    if(S.size() == i){
      |       ~~~~~~~~~^~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 95