Submission #93317

#	Time	Username	Problem	Language	Result	Execution time	Memory
93317		beso123	Combo (IOI18_combo)	C++14	5 / 100	2 ms	256 KiB

combo

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

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:24:15: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   24 | while(s.size()<N){
      |       ~~~~~~~~^~
combo.cpp:25:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 | for(int k=0;k<a.size();k++){
      |             ~^~~~~~~~~
combo.cpp:27:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |    if(k==a.size()-1){
      |       ~^~~~~~~~~~~~
combo.cpp:90:15: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   90 | while(s.size()<N-1){
      |       ~~~~~~~~^~~~
combo.cpp:94:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   94 |   if(ps==s.size())
      |      ~~^~~~~~~~~~
combo.cpp:97:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   97 |   if(ps==s.size()+1)
      |      ~~^~~~~~~~~~~~
combo.cpp:100:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  100 |   if(ps==s.size()+2)
      |      ~~^~~~~~~~~~~~
combo.cpp:104:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  104 | for(int k=0;k<a.size();k++){
      |             ~^~~~~~~~~

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