Submission #989613

#	Time	Username	Problem	Language	Result	Execution time	Memory
989613		Newtonabc	Combo (IOI18_combo)	C++14	10 / 100	42 ms	1368 KiB

combo

#include "combo.h"
#include<bits/stdc++.h>
using namespace std;
vector<string> v;
string guess_sequence(int N) {
	bool a,b,x,y;
	int mx=1;
	string s="";
	a=b=x=y=true;
	if(press("A")) a=false,s="A";
	else if(press("B")) b=false,s="B";
	else if(press("X")) x=false,s="X";
	else y=false,s="Y";
	if(a) v.push_back("A");
	if(b) v.push_back("B");
	if(x) v.push_back("X");
	if(y) v.push_back("Y");
	for(int i=2;i<=N;i++){
		for(int j=0;j<v.size();j++){
			if(press(s+v[j])>mx){
				s=s+v[j];
				mx++;
				break;
			}
		}
	}
	return s;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:19:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |   for(int j=0;j<v.size();j++){
      |               ~^~~~~~~~~

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