oj.uz

Submission #951690

# Submission time Handle Problem Language Result Execution time Memory
951690 2024-03-22T10:42:49 Z arbuzick Monster Game (JOI21_monster) C++17
10 / 100
 111 ms 1488 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() <= 100) {
        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() == 1 || r.size() == 1) {
            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;
    }
}

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

Compilation message

monster.cpp: In function 'std::vector<int> my_sort(std::vector<int>)':
monster.cpp:76:29: warning: control reaches end of non-void function [-Wreturn-type]
   76 |     vector<int> ord_check = nw;
      |                             ^~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 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 1 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 44 ms 1112 KB Output is correct
17 Correct 29 ms 1216 KB Output is correct
18 Correct 43 ms 1228 KB Output is correct
19 Correct 31 ms 756 KB Output is correct
20 Correct 41 ms 1200 KB Output is correct
21 Correct 0 ms 344 KB Output is correct
22 Correct 0 ms 344 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 35 ms 1072 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 0 ms 344 KB Output is correct
29 Correct 0 ms 344 KB Output is correct
30 Correct 0 ms 344 KB Output is correct
31 Correct 0 ms 344 KB Output is correct
32 Correct 33 ms 1112 KB Output is correct

Subtask #2
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 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 1 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 44 ms 1112 KB Output is correct
17 Correct 29 ms 1216 KB Output is correct
18 Correct 43 ms 1228 KB Output is correct
19 Correct 31 ms 756 KB Output is correct
20 Correct 41 ms 1200 KB Output is correct
21 Correct 0 ms 344 KB Output is correct
22 Correct 0 ms 344 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 35 ms 1072 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 0 ms 344 KB Output is correct
29 Correct 0 ms 344 KB Output is correct
30 Correct 0 ms 344 KB Output is correct
31 Correct 0 ms 344 KB Output is correct
32 Correct 33 ms 1112 KB Output is correct
33 Incorrect 110 ms 1488 KB Wrong Answer [6]
34 Halted 0 ms 0 KB -

Subtask #3
0 / 75.0

# Verdict Execution time Memory Grader output
1 Incorrect 111 ms 1368 KB Wrong Answer [6]
2 Halted 0 ms 0 KB -