oj.uz

Submission #897488

# Submission time Handle Problem Language Result Execution time Memory
897488 2024-01-03T08:01:29 Z Neco_arc Village (BOI20_village) C++17
50 / 100
 64 ms 21072 KB 
#include <bits/stdc++.h>

#define ll long long
#define ull unsigned long long
#define all(x) x.begin(), x.end()
#define VietAnh "Village"
#define resp(x) sort(all(x)), x.resize(unique(all(x)) - x.begin())
#define getbit(x,i) ((x >> i)&1)
#define _left id * 2, l, mid
#define _right id * 2 + 1, mid + 1, r
#define cntbit(x) __builtin_popcountll(x)
#define fi(i, a, b) for(int i = a; i <= b; i++)
#define fid(i, a, b) for(int i = a; i >= b; i--)
#define maxn (int) 2e5 + 7

using namespace std;

const ll mod = 1e9 + 7;

mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

ll GetRandom(ll l, ll r)
{
    return uniform_int_distribution<ll> (l, r)(rng);
}

int n;
vector<int> edges[maxn];
int vt[maxn], used[maxn], a[maxn];
int child[maxn], cnt;
ll ans1, ans2;

void DFS(int u, int par)
{
    child[u] = 1, vt[++cnt] = u;
    for(int v : edges[u]){
        if(v == par) continue;
        DFS(v, u);

        child[u] += child[v];
        if(!used[v]) {
            used[u] = 1, swap(a[u], a[v]);
            ans2 += 2;
        }
    }

    if(u != 1) ans1 += min(child[u], n - child[u]) * 2;
    else if(!used[1]) ans2 += 2, swap(a[1], a[edges[1][0]]);

}

void solve()
{

    cin >> n;

    fi(i, 1, n - 1) {
        int x, y;
        cin >> x >> y;

        edges[x].push_back(y);
        edges[y].push_back(x);
    }

    fi(i, 1, n) a[i] = i;
    DFS(1, 0);

    fi(i, n + 1, 2 * n) vt[i] = vt[i - n];

    cout << ans2 << " " << ans1 <<'\n';
    fi(i, 1, n) cout << a[i] << " ";
    cout << '\n';
    fi(i, 1, n) cout << vt[i + (n / 2)] << " ";
}


int main()
{

    ios_base :: sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    if(fopen(VietAnh".inp", "r")) {
        freopen(VietAnh".inp", "r", stdin);
        freopen(VietAnh".out", "w", stdout);
    }


    int nTest = 1;
//    cin >> nTest;

    while(nTest--)
    {
        solve();
    }


    return 0;
}

Compilation message

Village.cpp: In function 'int main()':
Village.cpp:85:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   85 |         freopen(VietAnh".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
Village.cpp:86:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   86 |         freopen(VietAnh".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
6.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8028 KB Output is correct
2 Partially correct 2 ms 8028 KB Partially correct
3 Correct 2 ms 8028 KB Output is correct
4 Correct 2 ms 8108 KB Output is correct
5 Partially correct 2 ms 8024 KB Partially correct
6 Partially correct 2 ms 8108 KB Partially correct
7 Partially correct 2 ms 8024 KB Partially correct
8 Partially correct 2 ms 7840 KB Partially correct
9 Partially correct 2 ms 8024 KB Partially correct
10 Partially correct 2 ms 8028 KB Partially correct
11 Partially correct 2 ms 8028 KB Partially correct
12 Partially correct 2 ms 8024 KB Partially correct
13 Partially correct 2 ms 8028 KB Partially correct
14 Partially correct 2 ms 8028 KB Partially correct
15 Partially correct 2 ms 8028 KB Partially correct
16 Partially correct 2 ms 8028 KB Partially correct
17 Partially correct 2 ms 8028 KB Partially correct

Subtask #2
19.0 / 38.0

# Verdict Execution time Memory Grader output
1 Partially correct 2 ms 8028 KB Partially correct
2 Partially correct 2 ms 8028 KB Partially correct
3 Partially correct 2 ms 8024 KB Partially correct
4 Partially correct 3 ms 8112 KB Partially correct
5 Partially correct 2 ms 8024 KB Partially correct
6 Partially correct 2 ms 8024 KB Partially correct
7 Partially correct 2 ms 8028 KB Partially correct
8 Partially correct 2 ms 8024 KB Partially correct
9 Partially correct 2 ms 8028 KB Partially correct
10 Partially correct 3 ms 8108 KB Partially correct
11 Partially correct 2 ms 8028 KB Partially correct
12 Partially correct 2 ms 8028 KB Partially correct
13 Partially correct 2 ms 8028 KB Partially correct
14 Partially correct 2 ms 8124 KB Partially correct
15 Partially correct 2 ms 8028 KB Partially correct
16 Partially correct 3 ms 8284 KB Partially correct
17 Partially correct 2 ms 8028 KB Partially correct
18 Partially correct 2 ms 8112 KB Partially correct
19 Partially correct 2 ms 8028 KB Partially correct
20 Partially correct 2 ms 8108 KB Partially correct
21 Partially correct 2 ms 8028 KB Partially correct
22 Partially correct 2 ms 8028 KB Partially correct
23 Partially correct 2 ms 8028 KB Partially correct
24 Partially correct 2 ms 8028 KB Partially correct
25 Partially correct 2 ms 8028 KB Partially correct
26 Partially correct 2 ms 8028 KB Partially correct
27 Partially correct 2 ms 8028 KB Partially correct
28 Partially correct 2 ms 8028 KB Partially correct
29 Partially correct 2 ms 8028 KB Partially correct
30 Partially correct 2 ms 8024 KB Partially correct

Subtask #3
25.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8028 KB Output is correct
2 Partially correct 2 ms 8028 KB Partially correct
3 Correct 2 ms 8028 KB Output is correct
4 Correct 2 ms 8108 KB Output is correct
5 Partially correct 2 ms 8024 KB Partially correct
6 Partially correct 2 ms 8108 KB Partially correct
7 Partially correct 2 ms 8024 KB Partially correct
8 Partially correct 2 ms 7840 KB Partially correct
9 Partially correct 2 ms 8024 KB Partially correct
10 Partially correct 2 ms 8028 KB Partially correct
11 Partially correct 2 ms 8028 KB Partially correct
12 Partially correct 2 ms 8024 KB Partially correct
13 Partially correct 2 ms 8028 KB Partially correct
14 Partially correct 2 ms 8028 KB Partially correct
15 Partially correct 2 ms 8028 KB Partially correct
16 Partially correct 2 ms 8028 KB Partially correct
17 Partially correct 2 ms 8028 KB Partially correct
18 Partially correct 2 ms 8028 KB Partially correct
19 Partially correct 2 ms 8028 KB Partially correct
20 Partially correct 2 ms 8024 KB Partially correct
21 Partially correct 3 ms 8112 KB Partially correct
22 Partially correct 2 ms 8024 KB Partially correct
23 Partially correct 2 ms 8024 KB Partially correct
24 Partially correct 2 ms 8028 KB Partially correct
25 Partially correct 2 ms 8024 KB Partially correct
26 Partially correct 2 ms 8028 KB Partially correct
27 Partially correct 3 ms 8108 KB Partially correct
28 Partially correct 2 ms 8028 KB Partially correct
29 Partially correct 2 ms 8028 KB Partially correct
30 Partially correct 2 ms 8028 KB Partially correct
31 Partially correct 2 ms 8124 KB Partially correct
32 Partially correct 2 ms 8028 KB Partially correct
33 Partially correct 3 ms 8284 KB Partially correct
34 Partially correct 2 ms 8028 KB Partially correct
35 Partially correct 2 ms 8112 KB Partially correct
36 Partially correct 2 ms 8028 KB Partially correct
37 Partially correct 2 ms 8108 KB Partially correct
38 Partially correct 2 ms 8028 KB Partially correct
39 Partially correct 2 ms 8028 KB Partially correct
40 Partially correct 2 ms 8028 KB Partially correct
41 Partially correct 2 ms 8028 KB Partially correct
42 Partially correct 2 ms 8028 KB Partially correct
43 Partially correct 2 ms 8028 KB Partially correct
44 Partially correct 2 ms 8028 KB Partially correct
45 Partially correct 2 ms 8028 KB Partially correct
46 Partially correct 2 ms 8028 KB Partially correct
47 Partially correct 2 ms 8024 KB Partially correct
48 Partially correct 33 ms 13380 KB Partially correct
49 Partially correct 38 ms 13648 KB Partially correct
50 Partially correct 37 ms 13652 KB Partially correct
51 Partially correct 29 ms 12380 KB Partially correct
52 Partially correct 40 ms 13648 KB Partially correct
53 Partially correct 39 ms 13140 KB Partially correct
54 Partially correct 22 ms 14420 KB Partially correct
55 Partially correct 43 ms 21072 KB Partially correct
56 Partially correct 39 ms 17244 KB Partially correct
57 Partially correct 64 ms 15956 KB Partially correct
58 Partially correct 37 ms 14932 KB Partially correct
59 Partially correct 36 ms 13916 KB Partially correct
60 Correct 31 ms 14036 KB Output is correct
61 Partially correct 32 ms 14164 KB Partially correct
62 Partially correct 33 ms 14172 KB Partially correct
63 Partially correct 37 ms 13904 KB Partially correct
64 Partially correct 34 ms 14152 KB Partially correct
65 Partially correct 32 ms 14252 KB Partially correct
66 Partially correct 30 ms 13892 KB Partially correct
67 Partially correct 25 ms 12632 KB Partially correct
68 Partially correct 28 ms 13148 KB Partially correct
69 Partially correct 33 ms 14172 KB Partially correct
70 Partially correct 30 ms 14160 KB Partially correct
71 Partially correct 23 ms 12328 KB Partially correct
72 Partially correct 27 ms 12892 KB Partially correct
73 Partially correct 31 ms 14172 KB Partially correct
74 Partially correct 30 ms 13912 KB Partially correct
75 Partially correct 37 ms 13652 KB Partially correct
76 Partially correct 39 ms 13648 KB Partially correct
77 Partially correct 33 ms 13900 KB Partially correct
78 Partially correct 23 ms 11868 KB Partially correct
79 Partially correct 26 ms 12628 KB Partially correct
80 Partially correct 36 ms 13616 KB Partially correct
81 Partially correct 38 ms 14136 KB Partially correct
82 Partially correct 32 ms 13996 KB Partially correct