Submission #424581

#	Time	Username	Problem	Language	Result	Execution time	Memory
424581		Trunkty	Combo (IOI18_combo)	C++14	5 / 100	1 ms	200 KiB

combo

#include <iostream>
#include "combo.h"
using namespace std;

int x;

string guess_sequence(int N){
	string s;
	x = press("AB");
	if(x>=1){
		x = press("AX");
		if(x>=1){
			s += "A";
		}
		else{
			s += "B";
		}
	}
	else{
		x = press("AX");
		if(x>=1){
			s += "X";
		}
		else{
			s += "Y";
		}
	}
	if(s=="A"){
		for(int i=2;i<N;i++){
			x = press(s+"BB"+s+"BX"+s+"BY"+s+"X");
			if(x==s.length()+2){
				s += "B";
			}
			else if(x==s.length()+1){
				s += "X";
			}
			else{
				s += "Y";
			}
		}
		x = press(s+"B");
		if(x==N){
			s += "B";
		}
		else{
			x = press(s+"X");
			if(x==N){
				s += "X";
			}
			else{
				s += "Y";
			}
		}
	}
	else if(s=="B"){
		for(int i=2;i<N;i++){
			x = press(s+"AA"+s+"AX"+s+"AY"+s+"X");
			if(x==s.length()+2){
				s += "A";
			}
			else if(x==s.length()+1){
				s += "X";
			}
			else{
				s += "Y";
			}
		}
		x = press(s+"A");
		if(x==N){
			s += "A";
		}
		else{
			x = press(s+"X");
			if(x==N){
				s += "X";
			}
			else{
				s += "Y";
			}
		}
	}
	else if(s=="X"){
		for(int i=2;i<N;i++){
			x = press(s+"AA"+s+"AB"+s+"AY"+s+"B");
			if(x==s.length()+2){
				s += "A";
			}
			else if(x==s.length()+1){
				s += "B";
			}
			else{
				s += "Y";
			}
		}
		x = press(s+"A");
		if(x==N){
			s += "A";
		}
		else{
			x = press(s+"B");
			if(x==N){
				s += "B";
			}
			else{
				s += "Y";
			}
		}
	}
	else{
		for(int i=2;i<N;i++){
			x = press(s+"AA"+s+"AB"+s+"AX"+s+"B");
			if(x==s.length()+2){
				s += "A";
			}
			else if(x==s.length()+1){
				s += "B";
			}
			else{
				s += "X";
			}
		}
		x = press(s+"A");
		if(x==N){
			s += "A";
		}
		else{
			x = press(s+"B");
			if(x==N){
				s += "B";
			}
			else{
				s += "X";
			}
		}
	}
	return s;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:31:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |    if(x==s.length()+2){
      |       ~^~~~~~~~~~~~~~
combo.cpp:34:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |    else if(x==s.length()+1){
      |            ~^~~~~~~~~~~~~~
combo.cpp:58:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |    if(x==s.length()+2){
      |       ~^~~~~~~~~~~~~~
combo.cpp:61:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   61 |    else if(x==s.length()+1){
      |            ~^~~~~~~~~~~~~~
combo.cpp:85:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   85 |    if(x==s.length()+2){
      |       ~^~~~~~~~~~~~~~
combo.cpp:88:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   88 |    else if(x==s.length()+1){
      |            ~^~~~~~~~~~~~~~
combo.cpp:112:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  112 |    if(x==s.length()+2){
      |       ~^~~~~~~~~~~~~~
combo.cpp:115:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  115 |    else if(x==s.length()+1){
      |            ~^~~~~~~~~~~~~~

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