Submission #139674

#	Time	Username	Problem	Language	Result	Execution time	Memory
139674		Bazarkuly2003	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){
string s,q,t;
int m;
if(press("AB")==1){
if(press("A")==1){s="A";q="BXY";}else{s="B";q="AXY";}}else
if(press("X")==1){s="X";q="ABY";}else{s="Y";q="ABX";}

while(s.size()<N){
	
	if(s.size()*4+7>N*4){t=s+q[0]+q[1];
	m=press(t);t=s+q[0];
	if(m==s.size()+2)s+=q[0]+q[1];else
		if(m==s.size()+1){if(press(t)==s.size()+1)s+=q[0]else s+=q[1];
	}else if(m==s.size()) s+=q[2];
		}
	
	else{
t=s+q[0]+q[0]+s+q[0]+q[1]+s+q[0]+q[2]+s+q[1];
m=press(t);
if(m==s.size()+0)s+=q[2];else
if(m==s.size()+1)s+=q[1];else 
if(m==s.size()+2)s+=q[0];}

}
 return s;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:11:15: 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.size()<N){
      |       ~~~~~~~~^~
combo.cpp:13:17: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   13 |  if(s.size()*4+7>N*4){t=s+q[0]+q[1];
      |     ~~~~~~~~~~~~^~~~
combo.cpp:15:6: 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(m==s.size()+2)s+=q[0]+q[1];else
      |     ~^~~~~~~~~~~~
combo.cpp:16:7: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |   if(m==s.size()+1){if(press(t)==s.size()+1)s+=q[0]else s+=q[1];
      |      ~^~~~~~~~~~~~
combo.cpp:16:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |   if(m==s.size()+1){if(press(t)==s.size()+1)s+=q[0]else s+=q[1];
      |                        ~~~~~~~~^~~~~~~~~~~~
combo.cpp:16:52: error: expected ';' before 'else'
   16 |   if(m==s.size()+1){if(press(t)==s.size()+1)s+=q[0]else s+=q[1];
      |                                                    ^~~~
      |                                                    ;
combo.cpp:17:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |  }else if(m==s.size()) s+=q[2];
      |           ~^~~~~~~~~~
combo.cpp:23:5: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 | if(m==s.size()+0)s+=q[2];else
      |    ~^~~~~~~~~~~~
combo.cpp:24:5: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 | if(m==s.size()+1)s+=q[1];else
      |    ~^~~~~~~~~~~~
combo.cpp:25:5: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 | if(m==s.size()+2)s+=q[0];}
      |    ~^~~~~~~~~~~~