Submission #155579

#	Time	Username	Problem	Language	Result	Execution time	Memory
155579		bukanYohandi	Combo (IOI18_combo)	C++14	0 / 100	117 ms	200 KiB

combo

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

std::string guess_sequence(int N) {
  std::string p = "";
  for (int i = 0; i < 4 * N; ++i) {
    p += 'A';
  }
  int coins = press(p);
  std::string S = "";
  while(S.length()<=N){
  	if(press(S+'A')==S.length()+1){S+='A';continue;}
  	if(press(S+'B')==S.length()+1){S+='B';continue;}
  	if(press(S+'X')==S.length()+1){S+='X';continue;}
  	if(press(S+'Y')==S.length()+1){S+='Y';continue;}
  }
  return S;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:11:19: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   11 |   while(S.length()<=N){
      |         ~~~~~~~~~~^~~
combo.cpp:12:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 |    if(press(S+'A')==S.length()+1){S+='A';continue;}
      |       ~~~~~~~~~~~~^~~~~~~~~~~~~~
combo.cpp:13:19: 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(press(S+'B')==S.length()+1){S+='B';continue;}
      |       ~~~~~~~~~~~~^~~~~~~~~~~~~~
combo.cpp:14:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |    if(press(S+'X')==S.length()+1){S+='X';continue;}
      |       ~~~~~~~~~~~~^~~~~~~~~~~~~~
combo.cpp:15:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |    if(press(S+'Y')==S.length()+1){S+='Y';continue;}
      |       ~~~~~~~~~~~~^~~~~~~~~~~~~~
combo.cpp:9:7: warning: unused variable 'coins' [-Wunused-variable]
    9 |   int coins = press(p);
      |       ^~~~~

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