oj.uz

답안 #766161

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
766161 2023-06-25T10:52:34 Z pandapythoner Monster Game (JOI21_monster) C++17
100 / 100
 85 ms 428 KB 
#include <bits/stdc++.h>

#include "monster.h"

using namespace std;

#define ll long long
#define flt double
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()

mt19937 rnd(2342334);

int qcnt;

bool query(int a, int b) {
    qcnt += 1;
    return !Query(a, b);
}

vector<int> merge(vector<int> a, vector<int> b) {
    vector<int> c;
    int i = 0;
    int j = 0;
    while (i < (int)a.size() && j < (int)b.size()) {
        if (query(a[i], b[j])) {
            c.push_back(a[i]);
            i += 1;
        } else {
            c.push_back(b[j]);
            j += 1;
        }
    }
    while (i < (int)a.size()) {
        c.push_back(a[i]);
        i += 1;
    }
    while (j < (int)b.size()) {
        c.push_back(b[j]);
        j += 1;
    }
    return c;
}

vector<int> merge_sort(vector<int> a) {
    if (a.size() == 1) {
        return a;
    }
    int sz = (int)a.size();
    vector<int> x, y;
    for (int i = 0; i < sz; i += 1) {
        if (i < sz / 2) {
            x.push_back(a[i]);
        } else {
            y.push_back(a[i]);
        }
    }
    x = merge_sort(x);
    y = merge_sort(y);
    auto z = merge(x, y);
    return z;
}

vector<int> sort_aboba(vector<int> a) {
    vector<int> b = {a[0]};
    for (int i = 1; i < (int)a.size(); i += 1) {
        int l = -1;
        int r = (int)b.size();
        while (l + 1 < r) {
            int m = (l + r) / 2;
            if (query(b[m], a[i])) {
                l = m;
            } else {
                r = m;
            }
        }
        b.insert(b.begin() + r, a[i]);
    }
    return b;
}

vector<int> Solve(int n) {
    qcnt = 0;
    vector<int> t(n);
    for (int i = 0; i < n; i += 1) {
        t[i] = i;
    }
    shuffle(all(t), rnd);
    t = sort_aboba(t);
    if (query(t[0], t[n - 1])) {
        int x = -1;
        for (int i = min(100, n - 2); i >= 0; i -= 1) {
            if (!query(t[0], t[i])) {
                x = i;
                break;
            }
        }
        if (x == -1) {
            assert(0);
        }
        if (x == 1) {
            assert(0);
        }
        int fuck = -1;
        bool previous_was_1 = false;
        if (x == 2) {
            // assert(n <= 500);
            bool is_1_mx = false;
            int megaaboba = -1;
            for (int i = 3; i < n; i += 1) {
                if (!query(t[1], t[i])) {
                    megaaboba = i;
                    is_1_mx = true;
                    break;
                } else if (!query(t[2], t[i])) {
                    megaaboba = i;
                    break;
                }
            }
            if (is_1_mx) {
                swap(t[1], t[2]);
                reverse(t.begin() + 3, t.begin() + megaaboba + 1);
                fuck = megaaboba + 1;
            } else {
                swap(t[0], t[1]);
                reverse(t.begin() + 3, t.begin() + megaaboba + 1);
                fuck = megaaboba + 1;
            }
        } else {
            int m = x + 1;
            vector<int> q(m - 2);
            for (int i = 0; i < m - 2; i += 1) {
                q[i] = query(t[i], t[i + 2]);
            }
            int d = -1;
            for (int i = 0; i + 1 < m - 2; i += 1) {
                if (q[i] && q[i + 1]) {
                    d = i + 1;
                    break;
                }
            }
            if (d == -1) {
                if (q[0]) {
                    d = 0;
                } else if (q[m - 3]) {
                    d = m - 2;
                }
            }
            if (d == -1) {
                assert(0);
            } else {
                reverse(t.begin(), t.begin() + d + 1);
                reverse(t.begin() + d + 1, t.begin() + m);
            }
            fuck = m;
        }
        while (fuck < n) {
            int new_fuck = -1;
            for (int i = fuck + (int)previous_was_1; i < n; i += 1) {
                if (!query(t[fuck - 1], t[i])) {
                    new_fuck = i + 1;
                    break;
                }
            }
            if (new_fuck == -1) {
                assert(0);
            }
            reverse(t.begin() + fuck, t.begin() + new_fuck);
            previous_was_1 = ((new_fuck - fuck) == 1);
            fuck = new_fuck;
        }
    } else {
        vector<int> q(n - 2);
        for (int i = 0; i < n - 2; i += 1) {
            q[i] = query(t[i], t[i + 2]);
        }
        int d = -1;
        for (int i = 0; i + 1 < n - 2; i += 1) {
            if (q[i] && q[i + 1]) {
                d = i + 1;
                break;
            }
        }
        if (d == -1) {
            if (q[0]) {
                d = 0;
            } else if (q[n - 3]) {
                d = n - 2;
            }
        }
        if (d == -1) {
            reverse(all(t));
        } else {
            reverse(t.begin(), t.begin() + d + 1);
            reverse(t.begin() + d + 1, t.end());
        }
    }
    vector<int> p(n);
    for (int i = 0; i < n; i += 1) {
        p[t[i]] = i;
    }
    return p;
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 0 ms 208 KB Output is correct
8 Correct 1 ms 208 KB Output is correct
9 Correct 0 ms 208 KB Output is correct
10 Correct 0 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 1 ms 208 KB Output is correct
15 Correct 1 ms 208 KB Output is correct
16 Correct 12 ms 208 KB Output is correct
17 Correct 10 ms 304 KB Output is correct
18 Correct 7 ms 208 KB Output is correct
19 Correct 13 ms 208 KB Output is correct
20 Correct 13 ms 208 KB Output is correct
21 Correct 1 ms 208 KB Output is correct
22 Correct 0 ms 208 KB Output is correct
23 Correct 0 ms 208 KB Output is correct
24 Correct 0 ms 208 KB Output is correct
25 Correct 1 ms 208 KB Output is correct
26 Correct 11 ms 208 KB Output is correct
27 Correct 0 ms 208 KB Output is correct
28 Correct 0 ms 208 KB Output is correct
29 Correct 0 ms 208 KB Output is correct
30 Correct 1 ms 208 KB Output is correct
31 Correct 1 ms 208 KB Output is correct
32 Correct 10 ms 208 KB Output is correct

Subtask #2
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 0 ms 208 KB Output is correct
8 Correct 1 ms 208 KB Output is correct
9 Correct 0 ms 208 KB Output is correct
10 Correct 0 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 1 ms 208 KB Output is correct
15 Correct 1 ms 208 KB Output is correct
16 Correct 12 ms 208 KB Output is correct
17 Correct 10 ms 304 KB Output is correct
18 Correct 7 ms 208 KB Output is correct
19 Correct 13 ms 208 KB Output is correct
20 Correct 13 ms 208 KB Output is correct
21 Correct 1 ms 208 KB Output is correct
22 Correct 0 ms 208 KB Output is correct
23 Correct 0 ms 208 KB Output is correct
24 Correct 0 ms 208 KB Output is correct
25 Correct 1 ms 208 KB Output is correct
26 Correct 11 ms 208 KB Output is correct
27 Correct 0 ms 208 KB Output is correct
28 Correct 0 ms 208 KB Output is correct
29 Correct 0 ms 208 KB Output is correct
30 Correct 1 ms 208 KB Output is correct
31 Correct 1 ms 208 KB Output is correct
32 Correct 10 ms 208 KB Output is correct
33 Correct 80 ms 288 KB Output is correct
34 Correct 79 ms 296 KB Output is correct
35 Correct 53 ms 308 KB Output is correct
36 Correct 52 ms 300 KB Output is correct
37 Correct 52 ms 316 KB Output is correct
38 Correct 80 ms 296 KB Output is correct
39 Correct 58 ms 292 KB Output is correct
40 Correct 35 ms 336 KB Output is correct
41 Correct 85 ms 208 KB Output is correct
42 Correct 56 ms 304 KB Output is correct
43 Correct 79 ms 208 KB Output is correct
44 Correct 71 ms 304 KB Output is correct

Subtask #3
75.0 / 75.0

# 결과 실행 시간 메모리 Grader output
1 Correct 77 ms 208 KB Output is correct
2 Correct 41 ms 312 KB Output is correct
3 Correct 80 ms 300 KB Output is correct
4 Correct 77 ms 316 KB Output is correct
5 Correct 56 ms 208 KB Output is correct
6 Correct 56 ms 208 KB Output is correct
7 Correct 54 ms 300 KB Output is correct
8 Correct 44 ms 312 KB Output is correct
9 Correct 77 ms 296 KB Output is correct
10 Correct 72 ms 296 KB Output is correct
11 Correct 76 ms 296 KB Output is correct
12 Correct 69 ms 300 KB Output is correct
13 Correct 77 ms 292 KB Output is correct
14 Correct 59 ms 208 KB Output is correct
15 Correct 52 ms 208 KB Output is correct
16 Correct 31 ms 428 KB Output is correct
17 Correct 59 ms 300 KB Output is correct
18 Correct 55 ms 208 KB Output is correct