Submission #1103872

#	Time	Username	Problem	Language	Result	Execution time	Memory
1103872		asdfghjk	Combo (IOI18_combo)	C++17	10 / 100	58 ms	1108 KiB

combo

#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define all(x) x.begin(), x.end()
#define F first
#define ld long double
#define S second
using namespace std;
const ll N = 5e3 + 5;
const ll NN = 4e5 + 5;
const ll INF = 1e18;
const ll inf = 1e9;
const ll MOD = 1e9 + 7;
char a[10];
int was[10];
int press(std::string p);
string guess_sequence(int n){
    a[1] = 'A';
    a[2] = 'B';
    a[3] = 'X';
    a[4] = 'Y';
    string s = "";
    int res = 0;

    for(int i = 1;i <= n;i++){
        for(int j = 1;j <= 4;j++){
            if(was[j] == 1)continue;
            s += a[j];
            int val = press(s);
            if(val  > res){
                if(i == 1){
                    was[j] = 1;
                }
                res = val;
                break;
            }
            s.pop_back();
        }
    }
    return s;
}

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