oj.uz

Submission #940710

# Submission time Handle Problem Language Result Execution time Memory
940710 2024-03-07T13:54:33 Z Pring Village (BOI20_village) C++14
50 / 100
 167 ms 26016 KB 
#include <bits/stdc++.h>
using namespace std;

#ifdef MIKU
const string dbmc = "\033[1;38;2;57;197;187m", dbrs = "\033[0m";
#define debug(x...) cout << dbmc << '[' << #x << "] : ", dout(x)
void dout() { cout << dbrs << endl; }
template <typename T, typename ...U>
void dout(T t, U ...u) { cout << t << (sizeof...(u) ? ", " : ""); dout(u...); }
#else
#define debug(...) 39
#endif

#define int long long
#define fs first
#define sc second
#define mp make_pair
#define FOR(i, j, k) for (int i = j, Z = k; i < Z; i++)
typedef pair<int, int> pii;

const int MXN = 100005;
int n;
vector<int> edge[MXN];

namespace NSA {
    int ans, va[MXN], sz[MXN];
    int bind[MXN];

    void DFS(int id, int par) {
        sz[id] = 1;
        vector<int> odd;
        for (auto &i : edge[id]) {
            if (i == par) continue;
            DFS(i, id);
            sz[id] += sz[i];
            if (sz[i] & 1) odd.push_back(i);
        }
        odd.push_back(id);
        for (int i = 1; i < odd.size(); i += 2) {
            bind[odd[i - 1]] = odd[i];
            bind[odd[i]] = odd[i - 1];
            ans += (odd[i] == id ? 2 : 4);
        }
    }

    void DO() {
        int rt = [&]() -> int {
            FOR(i, 1, n + 1) if (edge[i].size() == 1) return i;
            return 0;
        }();
        DFS(rt, 0);
        if (sz[rt] & 1) {
            bind[rt] = rt;
            swap(bind[rt], bind[edge[rt][0]]);
            ans += 2;
        }
        copy(bind + 1, bind + n + 1, va + 1);
    }
}

namespace NSB {
    int ans, va[MXN];
    int sz[MXN];
    bitset<MXN> ban;

    int GET_ANS(int id, int par) {
        sz[id] = 1;
        int ans = 0;
        for (auto &i : edge[id]) {
            if (i == par) continue;
            ans += GET_ANS(i, id);
            sz[id] += sz[i];
        }
        return (ans + min(n - sz[id], sz[id]) * 2);
    }

    void GET_SZ(int id, int par) {
        sz[id] = 1;
        for (auto &i : edge[id]) {
            if (i == par) continue;
            if (ban[i]) continue;
            GET_SZ(i, id);
            sz[id] += sz[i];
        }
    }

    int GET_CD(int id, int par, int N) {
        for (auto &i : edge[id]) {
            if (i == par) continue;
            if (ban[i]) continue;
            if (sz[i] > N / 2) return GET_CD(i, id, N);
        }
        return id;
    }

    vector<int> CD(int id) {
        GET_SZ(id, 0);
        if (sz[id] == 1) return vector<int>(1, id);
        vector<int> w(sz[id]), wid;
        for (int i = 0; i < sz[id]; i += 2) wid.push_back(i);
        for (int i = 1; i < sz[id]; i += 2) wid.push_back(i);
        int cd = GET_CD(id, 0, sz[id]);
        vector<vector<int>> v;
        ban[cd] = true;
        for (auto &i : edge[cd]) {
            if (ban[i]) continue;
            v.push_back(CD(i));
        }
        sort(v.begin(), v.end(), [&](vector<int> &a, vector<int> &b) -> bool {
            return a.size() > b.size();
        });
        v.back().push_back(cd);
        int C = 0;
        for (auto &i : v) for (auto &j : i) w[wid[C++]] = j;
        // debug(id);
        // for (auto &i : w) cout << i << ' ';
        // cout << endl;
        return w;
    }

    void DO() {
        ans = GET_ANS(1, 0);
        vector<int> v = CD(1);
        // cout << dbmc;
        // for (auto &i : v) cout << i << ' ';
        // cout << dbrs << endl;
        v.push_back(v[0]);
        FOR(i, 1, n + 1) va[v[i - 1]] = v[i];
    }
}

void miku() {
    int x, y;
    cin >> n;
    FOR(i, 1, n) {
        cin >> x >> y;
        edge[x].push_back(y);
        edge[y].push_back(x);
    }
    NSA::DO();
    NSB::DO();
    cout << NSA::ans << ' ' << NSB::ans << '\n';
    FOR(i, 1, n + 1) cout << NSA::va[i] << ' ';
    cout << '\n';
    FOR(i, 1, n + 1) cout << NSB::va[i] << ' ';
    cout << '\n';
}

int32_t main() {
    cin.tie(0) -> sync_with_stdio(false);
    cin.exceptions(iostream::failbit);
    miku();
    return 0;
}

Compilation message

Village.cpp: In function 'void NSA::DFS(long long int, long long int)':
Village.cpp:39:27: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |         for (int i = 1; i < odd.size(); i += 2) {
      |                         ~~^~~~~~~~~~~~

Subtask #1
6.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6488 KB Output is correct
2 Correct 2 ms 6488 KB Output is correct
3 Correct 2 ms 6488 KB Output is correct
4 Partially correct 1 ms 6492 KB Partially correct
5 Correct 2 ms 6448 KB Output is correct
6 Partially correct 2 ms 6560 KB Partially correct
7 Correct 2 ms 6492 KB Output is correct
8 Correct 2 ms 6492 KB Output is correct
9 Correct 2 ms 6492 KB Output is correct
10 Correct 2 ms 6492 KB Output is correct
11 Correct 2 ms 6492 KB Output is correct
12 Correct 2 ms 6492 KB Output is correct
13 Partially correct 2 ms 6492 KB Partially correct
14 Correct 1 ms 6492 KB Output is correct
15 Partially correct 2 ms 6492 KB Partially correct
16 Partially correct 2 ms 6492 KB Partially correct
17 Partially correct 2 ms 6488 KB Partially correct

Subtask #2
19.0 / 38.0

# Verdict Execution time Memory Grader output
1 Partially correct 2 ms 6488 KB Partially correct
2 Partially correct 2 ms 6488 KB Partially correct
3 Partially correct 3 ms 6556 KB Partially correct
4 Partially correct 2 ms 6492 KB Partially correct
5 Partially correct 3 ms 6492 KB Partially correct
6 Partially correct 3 ms 6492 KB Partially correct
7 Correct 2 ms 6748 KB Output is correct
8 Partially correct 2 ms 6492 KB Partially correct
9 Partially correct 3 ms 6492 KB Partially correct
10 Partially correct 2 ms 6492 KB Partially correct
11 Partially correct 2 ms 6492 KB Partially correct
12 Correct 2 ms 6488 KB Output is correct
13 Correct 2 ms 6492 KB Output is correct
14 Partially correct 2 ms 6492 KB Partially correct
15 Partially correct 2 ms 6488 KB Partially correct
16 Partially correct 3 ms 6488 KB Partially correct
17 Partially correct 2 ms 6492 KB Partially correct
18 Partially correct 2 ms 6492 KB Partially correct
19 Partially correct 2 ms 6492 KB Partially correct
20 Partially correct 2 ms 6564 KB Partially correct
21 Partially correct 2 ms 6488 KB Partially correct
22 Partially correct 2 ms 6492 KB Partially correct
23 Partially correct 2 ms 6488 KB Partially correct
24 Partially correct 2 ms 6492 KB Partially correct
25 Partially correct 2 ms 6492 KB Partially correct
26 Partially correct 2 ms 6492 KB Partially correct
27 Partially correct 2 ms 6492 KB Partially correct
28 Partially correct 2 ms 6560 KB Partially correct
29 Partially correct 3 ms 6488 KB Partially correct
30 Partially correct 3 ms 6492 KB Partially correct

Subtask #3
25.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6488 KB Output is correct
2 Correct 2 ms 6488 KB Output is correct
3 Correct 2 ms 6488 KB Output is correct
4 Partially correct 1 ms 6492 KB Partially correct
5 Correct 2 ms 6448 KB Output is correct
6 Partially correct 2 ms 6560 KB Partially correct
7 Correct 2 ms 6492 KB Output is correct
8 Correct 2 ms 6492 KB Output is correct
9 Correct 2 ms 6492 KB Output is correct
10 Correct 2 ms 6492 KB Output is correct
11 Correct 2 ms 6492 KB Output is correct
12 Correct 2 ms 6492 KB Output is correct
13 Partially correct 2 ms 6492 KB Partially correct
14 Correct 1 ms 6492 KB Output is correct
15 Partially correct 2 ms 6492 KB Partially correct
16 Partially correct 2 ms 6492 KB Partially correct
17 Partially correct 2 ms 6488 KB Partially correct
18 Partially correct 2 ms 6488 KB Partially correct
19 Partially correct 2 ms 6488 KB Partially correct
20 Partially correct 3 ms 6556 KB Partially correct
21 Partially correct 2 ms 6492 KB Partially correct
22 Partially correct 3 ms 6492 KB Partially correct
23 Partially correct 3 ms 6492 KB Partially correct
24 Correct 2 ms 6748 KB Output is correct
25 Partially correct 2 ms 6492 KB Partially correct
26 Partially correct 3 ms 6492 KB Partially correct
27 Partially correct 2 ms 6492 KB Partially correct
28 Partially correct 2 ms 6492 KB Partially correct
29 Correct 2 ms 6488 KB Output is correct
30 Correct 2 ms 6492 KB Output is correct
31 Partially correct 2 ms 6492 KB Partially correct
32 Partially correct 2 ms 6488 KB Partially correct
33 Partially correct 3 ms 6488 KB Partially correct
34 Partially correct 2 ms 6492 KB Partially correct
35 Partially correct 2 ms 6492 KB Partially correct
36 Partially correct 2 ms 6492 KB Partially correct
37 Partially correct 2 ms 6564 KB Partially correct
38 Partially correct 2 ms 6488 KB Partially correct
39 Partially correct 2 ms 6492 KB Partially correct
40 Partially correct 2 ms 6488 KB Partially correct
41 Partially correct 2 ms 6492 KB Partially correct
42 Partially correct 2 ms 6492 KB Partially correct
43 Partially correct 2 ms 6492 KB Partially correct
44 Partially correct 2 ms 6492 KB Partially correct
45 Partially correct 2 ms 6560 KB Partially correct
46 Partially correct 3 ms 6488 KB Partially correct
47 Partially correct 3 ms 6492 KB Partially correct
48 Partially correct 79 ms 14284 KB Partially correct
49 Partially correct 78 ms 14564 KB Partially correct
50 Partially correct 77 ms 15044 KB Partially correct
51 Partially correct 62 ms 13136 KB Partially correct
52 Partially correct 80 ms 14352 KB Partially correct
53 Partially correct 70 ms 14140 KB Partially correct
54 Correct 64 ms 16332 KB Output is correct
55 Correct 167 ms 26016 KB Output is correct
56 Partially correct 135 ms 20404 KB Partially correct
57 Partially correct 117 ms 17756 KB Partially correct
58 Partially correct 111 ms 17292 KB Partially correct
59 Partially correct 101 ms 15804 KB Partially correct
60 Correct 51 ms 18572 KB Output is correct
61 Partially correct 52 ms 16480 KB Partially correct
62 Partially correct 63 ms 15384 KB Partially correct
63 Partially correct 54 ms 14824 KB Partially correct
64 Partially correct 64 ms 14656 KB Partially correct
65 Partially correct 61 ms 15768 KB Partially correct
66 Partially correct 54 ms 14712 KB Partially correct
67 Partially correct 38 ms 14496 KB Partially correct
68 Partially correct 49 ms 13636 KB Partially correct
69 Partially correct 56 ms 15048 KB Partially correct
70 Partially correct 55 ms 14892 KB Partially correct
71 Partially correct 35 ms 12496 KB Partially correct
72 Partially correct 44 ms 13248 KB Partially correct
73 Partially correct 60 ms 15388 KB Partially correct
74 Partially correct 46 ms 14160 KB Partially correct
75 Partially correct 90 ms 15428 KB Partially correct
76 Correct 81 ms 14492 KB Output is correct
77 Partially correct 60 ms 14824 KB Partially correct
78 Partially correct 45 ms 12040 KB Partially correct
79 Partially correct 53 ms 12700 KB Partially correct
80 Partially correct 105 ms 15512 KB Partially correct
81 Partially correct 72 ms 14468 KB Partially correct
82 Partially correct 53 ms 14256 KB Partially correct