Submission #116186

#	Time	Username	Problem	Language	Result	Execution time	Memory
116186		mirbek01	Combo (IOI18_combo)	C++11	10 / 100	101 ms	440 KiB

combo

# include <bits/stdc++.h>
# include "combo.h"

using namespace std;

string t = "ABXY";

string guess_sequence(int N) {
      string ans;

      int ret = press("A");
      if(ret)
            ans = "A";
      ret = press("B");
      if(ret)
            ans = "B";
      ret = press("X");
      if(ret)
            ans = "X";
      ret = press("Y");
      if(ret)
            ans = "Y";

      for(int i = 1; i < N; i ++){
            for(int j = 0; j < 4; j ++){
                  if(t[j] == ans[0])
                        continue;
                  ans += t[j];
                  ret = press(ans);
                  if(ret != ans.size()){
                        ans.pop_back();
                  } else {
                        break;
                  }
            }
      }

      return ans;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:30:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |                   if(ret != ans.size()){
      |                      ~~~~^~~~~~~~~~~~~

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