Submission #349497

#	Time	Username	Problem	Language	Result	Execution time	Memory
349497		David_M	Combo (IOI18_combo)	C++14	100 / 100	45 ms	596 KiB

combo

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

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