oj.uz

Submission #1101942

# Submission time Handle Problem Language Result Execution time Memory
1101942 2024-10-17T08:16:46 Z yoav_s Village (BOI20_village) C++17
0 / 100
 36 ms 7624 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef vector<ll> v;
typedef vector<v> vv;
typedef vector<vv> vvv;
typedef pair<ll, ll> p;
typedef vector<p> vp;
typedef vector<vp> vvp;
typedef vector<vvp> vvvp;
typedef pair<ll, p> tri;
typedef vector<tri> vtri;
typedef vector<vtri> vvtri;
typedef vector<vvtri> vvvtri;
typedef vector<bool> vb;
typedef vector<vb> vvb;
typedef vector<vvb> vvvb;

#define f first
#define s second
#define pb push_back
#define eb emplace_back
#define all(v) (v).begin(),(v).end()

const ll INF = 1e18;
const ll mod = 1e9 + 7;

int main()
{
    ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
    ll N;
    cin >> N;
    vv graph(N);
    for (ll i = 0; i < N - 1; i++)
    {
        ll a, b;
        cin >> a >> b; a--; b--;
        graph[a].pb(b); graph[b].pb(a);
    }
    vtri distances;
    for (ll i = 0; i < N; i++)
    {
        vb visited(N, false);
        stack<p> dfs;
        dfs.emplace(i, 0);
        while (!dfs.empty())
        {
            auto top = dfs.top();
            dfs.pop();
            if (visited[top.f]) continue;
            visited[top.f] = true;
            distances.eb(top.s, p(i, top.f));
            for (ll x : graph[top.f]) dfs.emplace(x, top.s + 1);
        }
    }
    sort(all(distances), greater<tri>());
    vb takenFirst(N,false), takenLast(N, false);
    ll res = 0;
    v perm(N);
    for (auto x : distances)
    {
        if (takenFirst[x.s.f] || takenLast[x.s.s]) continue;
        takenFirst[x.s.f] = true;
        takenLast[x.s.s] = true;
        perm[x.s.f] = x.s.s;
        res += x.f;
    }
    cout << N << " " << res << "\n";
    for (ll i = 0; i < N; i++) cout << "1 ";
    cout << "\n";
    for (ll x : perm) cout << x + 1 << " ";
    cout << "\n";
    return 0;
}

Subtask #1
0.0 / 12.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 340 KB Partially correct
2 Incorrect 1 ms 508 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0.0 / 38.0

# Verdict Execution time Memory Grader output
1 Partially correct 10 ms 2116 KB Partially correct
2 Partially correct 33 ms 7624 KB Partially correct
3 Incorrect 36 ms 7620 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0.0 / 50.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 340 KB Partially correct
2 Incorrect 1 ms 508 KB Output isn't correct
3 Halted 0 ms 0 KB -