Submission #503680

#	Time	Username	Problem	Language	Result	Execution time	Memory
503680		cristi_a	Combo (IOI18_combo)	C++17	10 / 100	48 ms	468 KiB

combo

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

string guess_sequence(int N) {
    vector<string> letters = {"A", "B", "X", "Y"};
    string rez = "";
    for(vector<string>::iterator i=letters.begin(); i!=letters.end(); i++)
        if(press(*i)) {
            rez = rez + *i;
            letters.erase(i);
            break;
        }

    for(int i=1; i<N; i++) {
        //cout << rez + letters[0] << " " << press(rez+letters[0]) << "\n";
        //cout << rez + letters[1] << " " << press(rez+letters[1]) << "\n";
        //cout << rez + letters[2] << " " << press(rez+letters[2]) << "\n\n";
        if(press(rez+letters[0])==i+1) rez = rez + letters[0];
        else if(press(rez+letters[1])==i+1) rez = rez + letters[1];
        else rez = rez + letters[2];
    }

    if(rez.size()==N) return rez;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:24:18: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   24 |     if(rez.size()==N) return rez;
      |        ~~~~~~~~~~^~~
combo.cpp:6:49: warning: control reaches end of non-void function [-Wreturn-type]
    6 |     vector<string> letters = {"A", "B", "X", "Y"};
      |                                                 ^

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