Submission #103819

#	Time	Username	Problem	Language	Result	Execution time	Memory
103819		beso123	Combo (IOI18_combo)	C++14	100 / 100	41 ms	556 KiB

combo

#include <bits/stdc++.h>
#include "combo.h"
using namespace std;
/*string pas;
int qu;
int press(string s){
	qu++;
    int r=0;
    string b="";
    for(int k=0;k<pas.size();k++){
        b=b+pas[k];
        if(s.find(b)==-1)
            return r;
            r++;
    }
    return r;
}*/
string a="ABXY";
string guess_sequence(int N){
	if(N==1){
		if(press("A")==1)
		return "A";
		if(press("B")==1)
		return "B";
		if(press("X")==1)
		return "X";
		return "Y";
	}
string s="";
int num,i=0;
string b;
s=a[0];
s+=a[1];
num=press(s);
if(num>=1){
	s=a[0];
	if(press(s)==1){
		b+=s;
		a.erase(0,1);
	}
	else{
		b+=a[1];
		a.erase(1,1);
	}
}
else{
	s=a[2];
	if(press(s)){
		b+=s;
		a.erase(2,1);
	}
	else{
		b+=a[3];
		a.erase(3,1);
	}
}
while((int)b.size()<N-1){
		string c=b+a[0]+b+a[1]+a[0]+b+a[1]+a[2]+b+a[1]+a[1];
		int ps=press(c);
		if(ps==b.size())
		b+=a[2];
		else{
		if(ps==b.size()+1)
		b+=a[0];
		else
		if(ps==b.size()+2)
		b+=a[1];
}
}
s=b+a[0];
if(press(s)==b.size()+1)
return s;

s=b+a[1];
if(press(s)==b.size()+1)
return s;

s=b+a[2];
return s;
}
/*int main(){
	while(1){
		qu=0;
	 a="ABXY";
 cin>>pas;
    string s=guess_sequence(pas.size());
    cout<<s<<' '<<qu<<endl;
}
return 0;
 
}*/

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:60:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   60 |   if(ps==b.size())
      |      ~~^~~~~~~~~~
combo.cpp:63:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   63 |   if(ps==b.size()+1)
      |      ~~^~~~~~~~~~~~
combo.cpp:66:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   66 |   if(ps==b.size()+2)
      |      ~~^~~~~~~~~~~~
combo.cpp:71:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   71 | if(press(s)==b.size()+1)
      |    ~~~~~~~~^~~~~~~~~~~~
combo.cpp:75:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   75 | if(press(s)==b.size()+1)
      |    ~~~~~~~~^~~~~~~~~~~~
combo.cpp:30:9: warning: unused variable 'i' [-Wunused-variable]
   30 | int num,i=0;
      |         ^

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