Submission #1006847

#	Time	Username	Problem	Language	Result	Execution time	Memory
1006847		christinelynn	Combo (IOI18_combo)	C++17	Compilation error	0 ms	0 KiB

combo

#include <bits/stdc++.h>
#define fi first
#define se second
using namespace std;

string guess_sequence(int n) {
  vector<char> c = {'A', 'B', 'X', 'Y'};

  string s = '...';
  for (auto &i : c) {
    for (auto &j : c) {
      for (auto &k : c) {
        s[0] = i;
        s[1] = j;
        s[2] = k;
        if (press(s)) {
          return s;
        }
      }
    }
  }
}

Compilation message (stderr)

combo.cpp:9:14: warning: multi-character character constant [-Wmultichar]
    9 |   string s = '...';
      |              ^~~~~
combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:9:14: error: conversion from 'int' to non-scalar type 'std::string' {aka 'std::__cxx11::basic_string<char>'} requested
combo.cpp:16:13: error: 'press' was not declared in this scope
   16 |         if (press(s)) {
      |             ^~~~~
combo.cpp:7:39: warning: control reaches end of non-void function [-Wreturn-type]
    7 |   vector<char> c = {'A', 'B', 'X', 'Y'};
      |                                       ^