oj.uz

Submission #896166

# Submission time Handle Problem Language Result Execution time Memory
896166 2023-12-31T23:39:42 Z ShaShi Village (BOI20_village) C++17
50 / 100
 65 ms 17572 KB 
#include <bits/stdc++.h>
// #define int long long 
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define kill(x) cout << x << endl, exit(0);
#define pb push_back
#define mp make_pair
#define pii pair<int, int>
 
 
using namespace std;
typedef long long ll;
typedef long double ld;
 
 
const int MAXN = (int)1e5 + 7;
const int MOD = 998244353;
const int INF = (int)1e9 + 7;
 
 
 
int n, m, t, flag, k, u, v, w, ans, ans2, tmp, tmp2, tmp3, tmp4;
int arr[MAXN], arr2[MAXN], par[MAXN], h[MAXN], sz[MAXN], cent;
int arr3[MAXN], arr4[MAXN];
vector<int> adj[MAXN];

bool DFS(int v, int p=-1) {
    bool res = 0;

    for (int u:adj[v]) {
        if (u != p) res |= DFS(u, v);
    }

    if (res) return 0;

    if (v != 1) {
        swap(arr[v], arr[p]);
        ans++;
        return 1;
    }

    swap(arr[1], arr[adj[1][0]]);
    ans++;
    return 0;
}


void DFSsz(int v, int p=-1) {
    sz[v] = 1;

    for (int u:adj[v]) {
        if (u == p) continue;
        DFSsz(u, v);
        sz[v] += sz[u];
    }
}


int centroid(int tot, int v, int p=-1) {
    for (int u:adj[v]) {
        if (u != p && 2*sz[u] > tot) {
            return centroid(tot, u, v);
        }
    }

    return v;
}



deque<int> vec, vec2;
vector<pii> love;
pii tof;

void DFS2(int v, int p=-1) {
    vec2.pb(v);
    
    for (int u:adj[v]) {
        if (u == p || u == cent) continue;
        DFS2(u, v);
    }
}


void solve() {
    vec.pb(cent);

    tmp4 = 1;

    for (int u:adj[cent]) {
        love.pb(mp(sz[u], u));
    }
    
    sort(all(love), greater<pii>());

    for (auto cur:love) {
        u = cur.S;
        DFS2(u);

        tmp4 += vec2.size();

        while (vec.size() && vec2.size()) {
            if (tof.F == -1) tof = mp(vec.back(), vec2.back());
            swap(arr3[vec.back()], arr3[vec2.back()]);
            vec2.pop_back();
            vec.pop_back();
        }

        while (vec2.size()) {
            vec.push_front(vec2.back());
            vec2.pop_back();
        }
    }
}


int32_t main() {
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    tof.F = -1;
 
    cin >> n;

    for (int i=1; i<n; i++) {
        cin >> u >> v;

        adj[u].pb(v);
        adj[v].pb(u);
    }

    // Min 
    for (int i=1; i<=n; i++) arr[i] = i;
    DFS(1);
    for (int i=1; i<=n; i++) arr2[arr[i]] = i;

    // Max
    DFSsz(1);
    cent = centroid(n, 1);
    DFSsz(cent);
    for (int i=1; i<=n; i++) arr3[i] = i;
    solve();

    // cout << "!" << cent << endl;

    for (int i=1; i<=n; i++) if (i != cent) ans2 += sz[i];

    if (tmp4%2) {
        u = vec.back();
        v = tof.F;
        w = tof.S;
        
        swap(arr3[v], arr3[w]);

        arr3[u] = w;
        arr3[v] = u;
        arr3[w] = v;
    }

    cout << 2*ans << " " << 2*ans2 << endl;

    for (int i=1; i<=n; i++) cout << arr2[i] << " ";
    cout << endl;

    for (int i=1; i<=n; i++) arr4[arr3[i]] = i;

    for (int i=1; i<=n; i++) cout << arr4[i] << " ";
    cout << endl;

 
    return 0;
}

Subtask #1
6.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4700 KB Output is correct
2 Correct 1 ms 4700 KB Output is correct
3 Correct 1 ms 4700 KB Output is correct
4 Correct 1 ms 4700 KB Output is correct
5 Correct 1 ms 4700 KB Output is correct
6 Correct 1 ms 4700 KB Output is correct
7 Correct 1 ms 4700 KB Output is correct
8 Correct 1 ms 4700 KB Output is correct
9 Correct 1 ms 4700 KB Output is correct
10 Correct 1 ms 4700 KB Output is correct
11 Correct 1 ms 4696 KB Output is correct
12 Correct 1 ms 4700 KB Output is correct
13 Correct 1 ms 4700 KB Output is correct
14 Correct 1 ms 4700 KB Output is correct
15 Correct 1 ms 4700 KB Output is correct
16 Correct 1 ms 4700 KB Output is correct
17 Partially correct 1 ms 4700 KB Partially correct

Subtask #2
19.0 / 38.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 4700 KB Partially correct
2 Correct 1 ms 4700 KB Output is correct
3 Correct 1 ms 4700 KB Output is correct
4 Partially correct 1 ms 4700 KB Partially correct
5 Partially correct 1 ms 4700 KB Partially correct
6 Correct 1 ms 4700 KB Output is correct
7 Correct 1 ms 4696 KB Output is correct
8 Correct 1 ms 4696 KB Output is correct
9 Partially correct 1 ms 4696 KB Partially correct
10 Correct 1 ms 4700 KB Output is correct
11 Partially correct 1 ms 4700 KB Partially correct
12 Correct 1 ms 4700 KB Output is correct
13 Correct 1 ms 4700 KB Output is correct
14 Partially correct 1 ms 4700 KB Partially correct
15 Correct 1 ms 4700 KB Output is correct
16 Correct 1 ms 4700 KB Output is correct
17 Correct 1 ms 4700 KB Output is correct
18 Correct 1 ms 4700 KB Output is correct
19 Correct 1 ms 4696 KB Output is correct
20 Correct 1 ms 4700 KB Output is correct
21 Correct 1 ms 4700 KB Output is correct
22 Correct 1 ms 4700 KB Output is correct
23 Partially correct 1 ms 4700 KB Partially correct
24 Partially correct 1 ms 4700 KB Partially correct
25 Correct 1 ms 4700 KB Output is correct
26 Partially correct 1 ms 4700 KB Partially correct
27 Correct 1 ms 4700 KB Output is correct
28 Partially correct 1 ms 4700 KB Partially correct
29 Partially correct 1 ms 4700 KB Partially correct
30 Correct 2 ms 4696 KB Output is correct

Subtask #3
25.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4700 KB Output is correct
2 Correct 1 ms 4700 KB Output is correct
3 Correct 1 ms 4700 KB Output is correct
4 Correct 1 ms 4700 KB Output is correct
5 Correct 1 ms 4700 KB Output is correct
6 Correct 1 ms 4700 KB Output is correct
7 Correct 1 ms 4700 KB Output is correct
8 Correct 1 ms 4700 KB Output is correct
9 Correct 1 ms 4700 KB Output is correct
10 Correct 1 ms 4700 KB Output is correct
11 Correct 1 ms 4696 KB Output is correct
12 Correct 1 ms 4700 KB Output is correct
13 Correct 1 ms 4700 KB Output is correct
14 Correct 1 ms 4700 KB Output is correct
15 Correct 1 ms 4700 KB Output is correct
16 Correct 1 ms 4700 KB Output is correct
17 Partially correct 1 ms 4700 KB Partially correct
18 Partially correct 1 ms 4700 KB Partially correct
19 Correct 1 ms 4700 KB Output is correct
20 Correct 1 ms 4700 KB Output is correct
21 Partially correct 1 ms 4700 KB Partially correct
22 Partially correct 1 ms 4700 KB Partially correct
23 Correct 1 ms 4700 KB Output is correct
24 Correct 1 ms 4696 KB Output is correct
25 Correct 1 ms 4696 KB Output is correct
26 Partially correct 1 ms 4696 KB Partially correct
27 Correct 1 ms 4700 KB Output is correct
28 Partially correct 1 ms 4700 KB Partially correct
29 Correct 1 ms 4700 KB Output is correct
30 Correct 1 ms 4700 KB Output is correct
31 Partially correct 1 ms 4700 KB Partially correct
32 Correct 1 ms 4700 KB Output is correct
33 Correct 1 ms 4700 KB Output is correct
34 Correct 1 ms 4700 KB Output is correct
35 Correct 1 ms 4700 KB Output is correct
36 Correct 1 ms 4696 KB Output is correct
37 Correct 1 ms 4700 KB Output is correct
38 Correct 1 ms 4700 KB Output is correct
39 Correct 1 ms 4700 KB Output is correct
40 Partially correct 1 ms 4700 KB Partially correct
41 Partially correct 1 ms 4700 KB Partially correct
42 Correct 1 ms 4700 KB Output is correct
43 Partially correct 1 ms 4700 KB Partially correct
44 Correct 1 ms 4700 KB Output is correct
45 Partially correct 1 ms 4700 KB Partially correct
46 Partially correct 1 ms 4700 KB Partially correct
47 Correct 2 ms 4696 KB Output is correct
48 Partially correct 42 ms 9720 KB Partially correct
49 Correct 43 ms 10064 KB Output is correct
50 Correct 43 ms 10020 KB Output is correct
51 Correct 35 ms 9052 KB Output is correct
52 Correct 44 ms 10064 KB Output is correct
53 Partially correct 37 ms 9552 KB Partially correct
54 Correct 30 ms 10872 KB Output is correct
55 Partially correct 65 ms 17572 KB Partially correct
56 Partially correct 53 ms 13756 KB Partially correct
57 Correct 49 ms 12372 KB Output is correct
58 Partially correct 47 ms 11348 KB Partially correct
59 Partially correct 45 ms 10260 KB Partially correct
60 Correct 41 ms 11076 KB Output is correct
61 Correct 37 ms 10444 KB Output is correct
62 Correct 36 ms 10504 KB Output is correct
63 Correct 32 ms 10132 KB Output is correct
64 Correct 38 ms 10324 KB Output is correct
65 Correct 35 ms 10584 KB Output is correct
66 Correct 32 ms 10504 KB Output is correct
67 Correct 26 ms 9004 KB Output is correct
68 Correct 29 ms 9564 KB Output is correct
69 Correct 41 ms 10540 KB Output is correct
70 Correct 41 ms 10068 KB Output is correct
71 Correct 25 ms 8792 KB Output is correct
72 Correct 28 ms 9224 KB Output is correct
73 Correct 33 ms 10588 KB Output is correct
74 Correct 38 ms 10064 KB Output is correct
75 Partially correct 41 ms 10064 KB Partially correct
76 Partially correct 38 ms 10068 KB Partially correct
77 Partially correct 50 ms 10292 KB Partially correct
78 Partially correct 25 ms 8284 KB Partially correct
79 Partially correct 29 ms 8784 KB Partially correct
80 Partially correct 41 ms 10068 KB Partially correct
81 Partially correct 38 ms 10348 KB Partially correct
82 Partially correct 34 ms 10280 KB Partially correct