Submission #837134

#	Time	Username	Problem	Language	Result	Execution time	Memory
837134		makanhulia	Cave (IOI13_cave)	C++17	100 / 100	540 ms	536 KiB

cave

#include "cave.h"
// #include "graderlib.c"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ld long double
#define ull unsigned long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define fi first
#define se second

const int MAX_N = 5e3 + 5;

int a[MAX_N], b[MAX_N], input;
bool check[MAX_N];

void exploreCave(int N) {
    int cnt = 0;
    while (cnt < N) {
        for (int i = 0; i < N; i++) if (!check[i]) a[i] = 0;
        input = tryCombination(a);
        int id;
        if (input == -1 or input > cnt) id = 0;
        else id = 1;
        int l = 0, r = N - 1;
        while (l < r) {
            int len = 0, cnt2 = 0, m = -1;
            for (int i = 0; i < N; i++) if (!check[i]) a[i] = 1 - id;
            for (int i = l; i <= r; i++) if (!check[i]) len++;
            for (int i = l; i <= r; i++) {
                if (check[i]) continue;
                cnt2++;
                m = i;
                a[i] = id;
                if (cnt2 == len / 2) break;
            }
            if (len == 1) {
                l = m;
                break;
            }
            input = tryCombination(a);
            if (input == -1 or input > cnt) r = m;
            else l = m + 1;
        }
        check[l] = 1, a[l] = id, b[l] = cnt;
        cnt++;
    }
    answer(a, b);
}

// int main() {
//     int N;
//     N = init();
//     exploreCave(N);
//     printf("INCORRECT\nYour solution did not call answer().\n");
//     return 0;
// }

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