oj.uz

Submission #940731

# Submission time Handle Problem Language Result Execution time Memory
940731 2024-03-07T14:28:38 Z Pring Village (BOI20_village) C++17
50 / 100
 135 ms 25216 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 lf = [&]() -> int {
            FOR(i, 1, n + 1) if (edge[i].size() == 1) return i;
            return 0;
        }();
        int rt = edge[lf][0];
        if (n % 2 == 0) {
            DFS(rt, 0);
        } else {
            edge[n + 1].push_back(rt);
            edge[rt].push_back(n + 1);
            DFS(n + 1, 0);
            ans -= 2;
            bind[rt] = rt;
            swap(bind[rt], bind[lf]);
        }
        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;
        return w;
    }

    void DO() {
        ans = GET_ANS(1, 0);
        vector<int> v = CD(1);
        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);
    }
    NSB::DO();
    NSA::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 1 ms 6488 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 2 ms 6492 KB Output is correct
4 Partially correct 2 ms 6492 KB Partially correct
5 Correct 2 ms 6492 KB Output is correct
6 Partially correct 2 ms 6492 KB Partially correct
7 Correct 2 ms 6416 KB Output is correct
8 Correct 2 ms 6488 KB Output is correct
9 Correct 2 ms 6492 KB Output is correct
10 Correct 1 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 6564 KB Partially correct
14 Correct 2 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 6492 KB Partially correct

Subtask #2
19.0 / 38.0

# Verdict Execution time Memory Grader output
1 Partially correct 2 ms 6492 KB Partially correct
2 Partially correct 2 ms 6492 KB Partially correct
3 Partially correct 2 ms 6492 KB Partially correct
4 Partially correct 2 ms 6492 KB Partially correct
5 Partially correct 2 ms 6492 KB Partially correct
6 Partially correct 2 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 2 ms 6492 KB Partially correct
10 Partially correct 3 ms 6492 KB Partially correct
11 Partially correct 2 ms 6520 KB Partially correct
12 Correct 2 ms 6492 KB Output is correct
13 Correct 2 ms 6492 KB Output is correct
14 Partially correct 2 ms 6488 KB Partially correct
15 Partially correct 2 ms 6488 KB Partially correct
16 Partially correct 3 ms 6492 KB Partially correct
17 Partially correct 2 ms 6492 KB Partially correct
18 Partially correct 2 ms 6680 KB Partially correct
19 Partially correct 2 ms 6744 KB Partially correct
20 Partially correct 2 ms 6492 KB Partially correct
21 Partially correct 3 ms 6492 KB Partially correct
22 Partially correct 2 ms 6492 KB Partially correct
23 Partially correct 2 ms 6492 KB Partially correct
24 Partially correct 2 ms 6492 KB Partially correct
25 Partially correct 2 ms 6556 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 6492 KB Partially correct
29 Partially correct 2 ms 6492 KB Partially correct
30 Partially correct 2 ms 6488 KB Partially correct

Subtask #3
25.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6488 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 2 ms 6492 KB Output is correct
4 Partially correct 2 ms 6492 KB Partially correct
5 Correct 2 ms 6492 KB Output is correct
6 Partially correct 2 ms 6492 KB Partially correct
7 Correct 2 ms 6416 KB Output is correct
8 Correct 2 ms 6488 KB Output is correct
9 Correct 2 ms 6492 KB Output is correct
10 Correct 1 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 6564 KB Partially correct
14 Correct 2 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 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 6492 KB Partially correct
21 Partially correct 2 ms 6492 KB Partially correct
22 Partially correct 2 ms 6492 KB Partially correct
23 Partially correct 2 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 2 ms 6492 KB Partially correct
27 Partially correct 3 ms 6492 KB Partially correct
28 Partially correct 2 ms 6520 KB Partially correct
29 Correct 2 ms 6492 KB Output is correct
30 Correct 2 ms 6492 KB Output is correct
31 Partially correct 2 ms 6488 KB Partially correct
32 Partially correct 2 ms 6488 KB Partially correct
33 Partially correct 3 ms 6492 KB Partially correct
34 Partially correct 2 ms 6492 KB Partially correct
35 Partially correct 2 ms 6680 KB Partially correct
36 Partially correct 2 ms 6744 KB Partially correct
37 Partially correct 2 ms 6492 KB Partially correct
38 Partially correct 3 ms 6492 KB Partially correct
39 Partially correct 2 ms 6492 KB Partially correct
40 Partially correct 2 ms 6492 KB Partially correct
41 Partially correct 2 ms 6492 KB Partially correct
42 Partially correct 2 ms 6556 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 6492 KB Partially correct
46 Partially correct 2 ms 6492 KB Partially correct
47 Partially correct 2 ms 6488 KB Partially correct
48 Partially correct 70 ms 14032 KB Partially correct
49 Partially correct 79 ms 14276 KB Partially correct
50 Partially correct 78 ms 14536 KB Partially correct
51 Partially correct 60 ms 13060 KB Partially correct
52 Partially correct 78 ms 14192 KB Partially correct
53 Partially correct 70 ms 13976 KB Partially correct
54 Correct 70 ms 15748 KB Output is correct
55 Correct 128 ms 25216 KB Output is correct
56 Partially correct 135 ms 19656 KB Partially correct
57 Partially correct 119 ms 17216 KB Partially correct
58 Partially correct 107 ms 16512 KB Partially correct
59 Partially correct 87 ms 15304 KB Partially correct
60 Correct 53 ms 18244 KB Output is correct
61 Partially correct 51 ms 16076 KB Partially correct
62 Partially correct 56 ms 14792 KB Partially correct
63 Partially correct 51 ms 14568 KB Partially correct
64 Partially correct 63 ms 14324 KB Partially correct
65 Partially correct 58 ms 15304 KB Partially correct
66 Partially correct 49 ms 14312 KB Partially correct
67 Partially correct 37 ms 14540 KB Partially correct
68 Partially correct 46 ms 13360 KB Partially correct
69 Partially correct 54 ms 14556 KB Partially correct
70 Partially correct 48 ms 14308 KB Partially correct
71 Partially correct 35 ms 12348 KB Partially correct
72 Partially correct 40 ms 12980 KB Partially correct
73 Partially correct 53 ms 14800 KB Partially correct
74 Partially correct 53 ms 14072 KB Partially correct
75 Partially correct 88 ms 15052 KB Partially correct
76 Correct 78 ms 14284 KB Output is correct
77 Partially correct 60 ms 14568 KB Partially correct
78 Partially correct 39 ms 11748 KB Partially correct
79 Partially correct 44 ms 12744 KB Partially correct
80 Partially correct 93 ms 14924 KB Partially correct
81 Partially correct 59 ms 14404 KB Partially correct
82 Partially correct 54 ms 14036 KB Partially correct