Submission #778641

#	Time	Username	Problem	Language	Result	Execution time	Memory
778641		Silence	Combo (IOI18_combo)	C++17	10 / 100	48 ms	444 KiB

combo

#include "combo.h"
#include <bits/stdc++.h>
using namespace std;
std::string guess_sequence(int N) {
	string s;
	string ans;
	auto second_subtask = [&](int n){
		string cur = "ABXY";
		string s;
		string ans;
		for (int i = 0;i<4;++i){
			string t;
			t+=cur[i];
			if (press(t) == 1){
				for (int j = 0;j<4;++j){
					if (i == j)continue;
					s+=cur[j];
				}
				ans+=cur[i];
				break;
			}
		}
		for (int i = 0;i<n - 1;++i){
			for (int j = 0;j<3;++j){
				ans+=s[j];
				if (press(ans) == i + 2){
					break;
				}
				ans.pop_back();
			}	
		}
		return ans;	
	};
	string v = second_subtask(N);
	//cout<<v<<'\n';
	return v;  
}

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