Submission #109635

#	Time	Username	Problem	Language	Result	Execution time	Memory
109635		youssefbou62	Combo (IOI18_combo)	C++14	Compilation error	0 ms	0 KiB

combo

#include  <bits/stdc++.h>
#include "combo.h" 
using namespace std;

#define mp make_pair
#define fi first
#define se second
#define all(v) v.begin(),v.end()
#define allarr(a) a , a + n
#define pb push_back

string guess_sequence (int n){
		string buttons ,s;  
		if( press("A")==1 ) s.pb('A') , buttons = "BXY" ;
		else if( press("B")==1 ) s.pb('B') , buttons = "AXY" ;
		else if( press("X")==1 ) s.pb('X') , buttons = "ABY" ;
		else  s.pb('Y' ) , buttons = "ABX" ; 
		
		while ( (int)s.length() != n ){
		string s2 = s ; 
		for(int i = 0 ; i < 4*n-s.length() ; i++ ) s2.pb(buttons[0]); 
		int ans = press ( s2 ) ;
		if( ans > (int)s.length() ) 
		while ( ans > (int)s.length() ) s.pb(buttons[0]) ; 
		else {
		 s2=s ; 
		for(int i = 0 ; i < 4*n-s.length() ; i++ ) s2.pb(buttons[1]); 
		ans = press ( s2 ) ; 
		if( ans > (int)s.lenght() ) {
		while ( ans > (int)s.length() ) s.pb(buttons[1]) ;
		}
		else {
		 s2=s ; 
		 s.pb(buttons[2]) ; 
		}
		}
		}
		
		assert( (int)s.length() == n) ; 
		return s ; 
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:21:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |   for(int i = 0 ; i < 4*n-s.length() ; i++ ) s2.pb(buttons[0]);
      |                   ~~^~~~~~~~~~~~~~~~
combo.cpp:27:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |   for(int i = 0 ; i < 4*n-s.length() ; i++ ) s2.pb(buttons[1]);
      |                   ~~^~~~~~~~~~~~~~~~
combo.cpp:29:20: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'lenght'; did you mean 'length'?
   29 |   if( ans > (int)s.lenght() ) {
      |                    ^~~~~~
      |                    length