Submission #1278825

#	Time	Username	Problem	Language	Result	Execution time	Memory
1278825		North1304	Combo (IOI18_combo)	C++20	10 / 100	19 ms	444 KiB

combo

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

string guess_sequence(int n) {
    string ans;
    if (press("AB")) {
        if (press("A")) ans = "A";
        else ans = "B";
    }
    else {
        if (press("X")) ans = "X";
        else ans = "Y";
    }
    for (int i=2;i<=n;i++) {
        if (press(ans + "A")==i) ans += "A";
        else if (press(ans + "B")==i) ans += "B";
        else if (press(ans + "X")==i) ans += "X";
        else ans += "Y";
    }
    return ans;
}

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