Submission #349493

#	Time	Username	Problem	Language	Result	Execution time	Memory
349493		David_M	Combo (IOI18_combo)	C++14	100 / 100	47 ms	580 KiB

combo

#include "combo.h"
#include <bits/stdc++.h>
using namespace std;
string ans;
char a[]={'B','X','Y'};
string guess_sequence(int N){
press("XY")?ans+='Y'-press("X"):ans+='B'-press("A");
if(N==1)return ans;
if(ans!="A")a[max(0,int(ans[0]-'W'))]='A';
for(int i=1;i<N-1;i++)ans+=a[press(ans+a[1]+ans+a[2]+a[0]+ans+a[2]+a[1]+ans+a[2]+a[2])-i];
if(press(ans+a[0])==N)return ans+a[0];
if(press(ans+a[1])==N)return ans+a[1];
return ans+a[2];
}

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