Submission #269891

#	Time	Username	Problem	Language	Result	Execution time	Memory
269891		barsbold	Combo (IOI18_combo)	C++14	0 / 100	3 ms	456 KiB

combo

#include "combo.h"
#include <bits/stdc++.h>
#define ff first
#define ss second
#define pb push_back
std::string guess_sequence(int N) {
  std::string p = "";
  std::string s = "";
  for(int i = 0; i<N; i++){
  s = p + 'A';
  if(s[s.size() - 1] == 'A'){
    int coins = press(s);
    if(coins == s.size()){
      p+='A';
      continue;
    }
  }
  s = p + "B";
  if(s[s.size() - 1] == 'B'){
    int coins = press(s);
    if(coins == s.size()){
      p+='B';
      continue;
    }
  }
  s = p +'X';
  if(s[s.size() - 1] == 'X'){
    int coins = press(s);
    if(coins == s.size()){
      p+='X';
      continue;
    }
  }
  s = p + 'Y';
  if(s[s.size() - 1] == 'Y'){
    int coins = press(s);
    if(coins == s.size()){
      p+='Y';
      continue;
    }
  }
  if(p.size() == N) return p;
  
  }
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:13:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |     if(coins == s.size()){
      |        ~~~~~~^~~~~~~~~~~
combo.cpp:21:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |     if(coins == s.size()){
      |        ~~~~~~^~~~~~~~~~~
combo.cpp:29:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |     if(coins == s.size()){
      |        ~~~~~~^~~~~~~~~~~
combo.cpp:37:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |     if(coins == s.size()){
      |        ~~~~~~^~~~~~~~~~~
combo.cpp:42:15: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   42 |   if(p.size() == N) return p;
      |      ~~~~~~~~~^~~~
combo.cpp:8:19: warning: control reaches end of non-void function [-Wreturn-type]
    8 |   std::string s = "";
      |                   ^~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 95