Submission #1049191

#	Time	Username	Problem	Language	Result	Execution time	Memory
1049191		MrDogMeat	Combo (IOI18_combo)	C++17	10 / 100	33 ms	1112 KiB

combo

#include "combo.h"
#include<bits/stdc++.h>

using namespace std;

string guess_sequence(int N) {
    string res = "";
    vector<char> vec = {'A', 'B', 'X'};

    if(press("AB") >= 1) {
        if(press("A") == 1) {
            res += 'A';
            vec.erase(vec.begin());
        }
        else {
            res += 'B';
            vec.erase(vec.begin() + 1);
        }
    }
    else {
        if(press("X") == 1) {
            res += 'X';
            vec.erase(vec.begin() + 2);
        }
        else {
            res += 'Y';
        }
    }

    for(int i = 2; i <= N; i++) {
        bool flag = false;
        for(auto e : vec) if(press(res + e) == i) {
            res += e;
            flag = true;
            break;
        }
        if(flag) continue;
        res += 'Y';
    }

    return res;
}

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