oj.uz

Submission #951695

# Submission time Handle Problem Language Result Execution time Memory
951695 2024-03-22T10:56:53 Z arbuzick Monster Game (JOI21_monster) C++17
25 / 100
 124 ms 1712 KB 
#include "monster.h"

#include <bits/stdc++.h>

using namespace std;

mt19937 rnd(57);

int get_mx(vector<int> nw) {
    int ans = nw[0];
    for (int i = 1; i < (int)nw.size(); ++i) {
        if (Query(nw[i], ans)) {
            ans = nw[i];
        }
    }
    return ans;
}

int get_mn(vector<int> nw) {
    int ans = nw[0];
    for (int i = 1; i < (int)nw.size(); ++i) {
        if (Query(ans, nw[i])) {
            ans = nw[i];
        }
    }
    return ans;
}

vector<int> my_sort(vector<int> nw) {
    if (nw.size() <= 1) {
        return nw;
    }
    if (nw.size() <= 20) {
        map<pair<int, int>, int> vl;
        map<int, int> cnt;
        for (int i = 0; i < (int)nw.size(); ++i) {
            for (int j = i + 1; j < (int)nw.size(); ++j) {
                if (Query(nw[i], nw[j])) {
                    vl[{nw[i], nw[j]}] = 1;
                    cnt[nw[i]]++;
                } else {
                    vl[{nw[j], nw[i]}] = 1;
                    cnt[nw[j]]++;
                }
            }
        }
        int start;
        for (int i = 0; i < (int)nw.size(); ++i) {
            if (cnt[nw[i]] == 1) {
                bool check = true;
                for (int j = 0; j < (int)nw.size(); ++j) {
                    if (vl[{nw[i], nw[j]}] && cnt[nw[j]] != 1) {
                        check = false;
                        break;
                    }
                }
                if (check) {
                    start = nw[i];
                    break;
                }
            }
        }
        vector<int> ans = {start};
        set<int> used = {start};
        while (ans.size() < nw.size()) {
            for (int i = 0; i < (int)nw.size(); ++i) {
                if (!used.count(nw[i]) && vl[{ans.back(), nw[i]}]) {
                    ans.push_back(nw[i]);
                    used.insert(nw[i]);
                    break;
                }
            }
        }
        return ans;
    }
    vector<int> ord_check = nw;
    shuffle(ord_check.begin(), ord_check.end(), rnd);
    for (auto val_md : ord_check) {
        vector<int> l, r;
        for (int i = 0; i < (int)nw.size(); ++i) {
            if (nw[i] == val_md) {
                continue;
            }
            if (Query(val_md, nw[i])) {
                l.push_back(nw[i]);
            } else {
                r.push_back(nw[i]);
            }
        }
        if (l.size() <= 4 || r.size() <= 4) {
            continue;
        }
        int l_mx = get_mx(l), r_mn = get_mn(r);
        vector<int> ll, rr;
        for (auto vl : l) {
            if (vl != l_mx) {
                ll.push_back(vl);
            }
        }
        for (auto vl : r) {
            if (vl != r_mn) {
                rr.push_back(vl);
            }
        }
        ll = my_sort(ll);
        rr = my_sort(rr);
        vector<int> ans = ll;
        ans.push_back(r_mn);
        ans.push_back(val_md);
        ans.push_back(l_mx);
        for (auto vl : rr) {
            ans.push_back(vl);
        }
        return ans;
    }
    exit(1);
}

vector<int> Solve(int n) {
    vector<int> ord(n);
    iota(ord.begin(), ord.end(), 0);
    shuffle(ord.begin(), ord.end(), rnd);
    for (int i = 0; i + 1 < n; i += 2) {
        Query(ord[i], ord[i + 1]);
    }
    ord = my_sort(ord);
    vector<int> ans(n);
    for (int i = 0; i < n; ++i) {
        ans[ord[i]] = i;
    }
    return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 408 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 12 ms 872 KB Output is correct
17 Correct 14 ms 960 KB Output is correct
18 Correct 12 ms 856 KB Output is correct
19 Correct 12 ms 1112 KB Output is correct
20 Correct 11 ms 960 KB Output is correct
21 Correct 0 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 0 ms 600 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 0 ms 600 KB Output is correct
26 Correct 14 ms 1112 KB Output is correct
27 Correct 1 ms 596 KB Output is correct
28 Correct 1 ms 344 KB Output is correct
29 Correct 0 ms 344 KB Output is correct
30 Correct 0 ms 600 KB Output is correct
31 Correct 0 ms 344 KB Output is correct
32 Correct 9 ms 704 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 408 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 12 ms 872 KB Output is correct
17 Correct 14 ms 960 KB Output is correct
18 Correct 12 ms 856 KB Output is correct
19 Correct 12 ms 1112 KB Output is correct
20 Correct 11 ms 960 KB Output is correct
21 Correct 0 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 0 ms 600 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 0 ms 600 KB Output is correct
26 Correct 14 ms 1112 KB Output is correct
27 Correct 1 ms 596 KB Output is correct
28 Correct 1 ms 344 KB Output is correct
29 Correct 0 ms 344 KB Output is correct
30 Correct 0 ms 600 KB Output is correct
31 Correct 0 ms 344 KB Output is correct
32 Correct 9 ms 704 KB Output is correct
33 Correct 84 ms 1020 KB Output is correct
34 Correct 93 ms 1664 KB Output is correct
35 Correct 101 ms 1556 KB Output is correct
36 Correct 100 ms 1284 KB Output is correct
37 Correct 93 ms 1712 KB Output is correct
38 Correct 91 ms 1464 KB Output is correct
39 Correct 101 ms 728 KB Output is correct
40 Correct 115 ms 1252 KB Output is correct
41 Correct 88 ms 1268 KB Output is correct
42 Correct 107 ms 1472 KB Output is correct
43 Correct 85 ms 1256 KB Output is correct
44 Correct 88 ms 992 KB Output is correct

Subtask #3
0 / 75.0

# Verdict Execution time Memory Grader output
1 Partially correct 94 ms 1456 KB Partially correct
2 Partially correct 104 ms 1220 KB Partially correct
3 Partially correct 105 ms 960 KB Partially correct
4 Partially correct 99 ms 1464 KB Partially correct
5 Partially correct 90 ms 992 KB Partially correct
6 Partially correct 94 ms 1624 KB Partially correct
7 Partially correct 86 ms 1376 KB Partially correct
8 Partially correct 82 ms 1212 KB Partially correct
9 Partially correct 106 ms 1260 KB Partially correct
10 Partially correct 80 ms 1384 KB Partially correct
11 Partially correct 101 ms 1136 KB Partially correct
12 Partially correct 80 ms 1476 KB Partially correct
13 Incorrect 124 ms 1444 KB Wrong Answer [6]
14 Halted 0 ms 0 KB -