Submission #584616

#	Time	Username	Problem	Language	Result	Execution time	Memory
584616		supercatex	Combo (IOI18_combo)	C++14	10 / 100	59 ms	568 KiB

combo

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

int press(string);

string guess_sequence(int N)
{
    string s = "ABXY";
    string a = "";
    for (int i = 0; i < s.size() - 1; i++) {
        string p = string("") + s[i];
        if (press(p) == 1) {
            a = p;
            break;
        }
    }
    if (a == "") a = s[s.size() - 1];
  
    string p = a;
    int x = 1;
    while (x < N) {
        for (int i = 0; i < s.size(); i++) {
            if (s[i] == a[0]) continue;
            string new_p = p + s[i];
            int new_x = press(new_p);
            if (new_x > x) {
                x = new_x;
                p = new_p;
                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: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 |     for (int i = 0; i < s.size() - 1; i++) {
      |                     ~~^~~~~~~~~~~~~~
combo.cpp:22:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |         for (int i = 0; i < s.size(); i++) {
      |                         ~~^~~~~~~~~~

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