Submission #1187512

#	Time	Username	Problem	Language	Result	Execution time	Memory
1187512		nouka28	Combo (IOI18_combo)	C++20	10 / 100	19 ms	456 KiB

combo

#include "combo.h"

#include<bits/stdc++.h>
using namespace std;

// #define int long long

#define rep(i,n) for(int i=0;i<(n);i++)
#define rng(i,l,r) for(int i=(l);i<(r);i++)
#define rrep(i,n) for(int i=(n)-1;i>=0;i--)
#define rrng(i,l,r) for(int i=(r)-1;i>=(l);i--)

#define fi first
#define se second
#define all(x) (x).begin(),(x).end()

std::string guess_sequence(int N) {
	string s;
	string t="ABXY";
	rep(i,N){
		char c;
		rep(j,4){
			s+=t[j];
			int ret=press(s);
			if(ret==i+1){
				c=t[j];
			}
			s.pop_back();
		}
		s+=c;
	}
	return s;
}

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