Submission #1091793

#	Time	Username	Problem	Language	Result	Execution time	Memory
1091793		AndreasK	Cave (IOI13_cave)	C++17	12 / 100	438 ms	604 KiB

cave

#include <bits/stdc++.h>
#include <cave.h>

using namespace std;

#define designed ios_base::sync_with_stdio(0);
#define by cin.tie(0);
#define AndreasK cout.tie(0);
//#define int long long
#define ii pair <int, int>
#define vi vector <int>
#define iii pair <int, ii>
#define vii vector <ii>
#define vc vector <char>
#define vb vector <bool>

/*int n;

int tryCombination(int a[]) {
    int ansa[] = {1, 0, 0, 1};
    int ansb[] = {2, 1, 0, 3};
    int mn = 4;
    for (int c = 0; c < n; c++) {
        if (a[c] != ansa[c]) {
            mn = min(mn, ansb[c]);
        }
    }
    if (mn == 4)
        mn = -1;
    return mn;
}

void answer(int a[], int b[]) {
    for (int c = 0; c < n; c++)
        cout << a[c] << ' ';
    cout << '\n';
    for (int c = 0; c < n; c++)
        cout << b[c] << ' ';
    cout << '\n';
}*/

void exploreCave(int n) {
    int a[n] = {}, b[n];
    vi v(n, 0);
    for (int c = 0; c < n; c++) {
        int x = tryCombination(a);
        if (x == -1 || x > c) {
            int l = 0, r = n - 1;
            while (l < r) {
                int mid = (l + r) / 2;
                int d[n];
                for (int rr = 0; rr < n; rr++) {
                    if (rr > mid && v[rr] == 0) {
                        d[rr] = 1;
                    }
                    else if (v[rr] == 1)
                        d[rr] = a[rr];
                    else
                        d[rr] = 0;
                }
                int x = tryCombination(d);
                if (x == -1)
                    x = n;
                if (x > c) {
                    r = mid;
                }
                else
                    l = mid + 1;
            }
            b[c] = (l + r) / 2;
            v[(l + r) / 2] = 1;
        }
        else {
            int l = 0, r = n - 1;
            while (l < r) {
                int mid = (l + r) / 2;
                int d[n];
                for (int rr = 0; rr < n; rr++) {
                    if (rr > mid && v[rr] == 0) {
                        d[rr] = 1;
                    }
                    else if (v[rr] == 1)
                        d[rr] = a[rr];
                    else
                        d[rr] = 0;
                }
                int x = tryCombination(d);
                if (x == -1)
                    x = n;
                if (x > c) {
                    l = mid + 1;
                }
                else
                    r = mid;
            }
            a[(l + r) / 2] = 1;
            v[(l + r) / 2] = 1;
            b[c] = (l + r) / 2;
        }
    }
    answer(a, b);
}

/*int32_t main() {
    designed by AndreasK
    cin >> n;
    exploreCave(n);
    return 0;
}*/

• Subtask 1: 12 / 12
• Subtask 2: 0 / 13
• Subtask 3: 0 / 21
• Subtask 4: 0 / 30
• Subtask 5: 0 / 24