Submission #552305

#	Time	Username	Problem	Language	Result	Execution time	Memory
552305		qadeptrai	Combo (IOI18_combo)	C++14	10 / 100	67 ms	588 KiB

combo

#include <bits/stdc++.h>
#define oo 10000000000007
#define sci(x) scanf("%d", &x)
#define scii(x, y) scanf("%d %d", &x, &y)
#define pri(x) printf("%d ", x)
#define pril(x) printf("%d\n", x)
#define ii pair<int, int>
#define ff first
#define ss second
#define vi vector<int>
#define vii vector<ii>
#define pb push_back
#define mp make_pair
#define ll long long
#define fto(i, a, b) for (int i = a; i <= b; ++i)
#define fdto(i, a, b) for (int i = a; i >= b; --i)
#define maxN 100005

using namespace std;

int n;

int press(string p);
//    cout << p << endl;
//    int res; cin >> res;
//    return res;
//}

string guess_sequence(int n) {
    string p = "A";
    char a[] = {'A', 'B', 'X', 'Y'};
    int s = 0;
    while (1) {
        int x = press(p);
        if (x == 1) {
            swap(a[s], a[3]);
            break;
        }
        ++s;
        p = a[s];
    }
    string S = p;
    fto(i, 2, n) {
        int j = 0;
        p = S + a[j];
        while (press(p) != i) {
            ++j;
            p = S + a[j];
        }
        S = p;
    }
    return S;
}

//int main() {
//    sci(n);
//
//    cout << guess_sequence(n);
//
//    return 0;
//}

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