Submission #742161

#	Time	Username	Problem	Language	Result	Execution time	Memory
742161		computerbox	Combo (IOI18_combo)	C++14	Compilation error	0 ms	0 KiB

combo

#include "combo.h"
#include <bits/stdc++.h>
using namespace std;
string guess_sequence(int N) {
  vector<char>buttons;
  buttons.push_back('A');
  buttons.push_back('X');
  buttons.push_back('Y');
  buttons.push_back('B');
  for(int i = 0; i < 4; i++)
  {
    for(int j = i + 1; j < 4; j++)
    {
      for(int k = j; k < 4; k++)
      {
        string s = buttons[i] + buttons[j] + buttons[k];
        int o = press(s);
        if(o == 3)return s;
      }
    }
  }
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:16:44: error: conversion from 'int' to non-scalar type 'std::string' {aka 'std::__cxx11::basic_string<char>'} requested
   16 |         string s = buttons[i] + buttons[j] + buttons[k];
combo.cpp:5:15: warning: control reaches end of non-void function [-Wreturn-type]
    5 |   vector<char>buttons;
      |               ^~~~~~~