oj.uz

Submission #241905

# Submission time Handle Problem Language Result Execution time Memory
241905 2020-06-26T09:38:52 Z osaaateiasavtnl Construction of Highway (JOI18_construction) C++17
7 / 100
 184 ms 7160 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define ii pair <int, int>
#define app push_back
#define all(a) a.begin(), a.end()
#define bp __builtin_popcountll
#define ll long long
#define mp make_pair
#define f first
#define s second
#define Time (double)clock()/CLOCKS_PER_SEC

const int N = 1e5+7, LG = 20;
int n, a[N], par[N];
ii d[N];
vector <int> tree[N];

int to[N][LG], h[N];
int l[N], r[N], ptr = -1;
void dfs(int u) {
    to[u][0] = par[u];
    for (int i = 1; i < LG; ++i)
        to[u][i] = to[to[u][i - 1]][i - 1];

    l[u] = ++ptr;    

    for (int v : tree[u]) {
        h[v] = h[u]+1;
        dfs(v);        
    }   

    r[u] = ptr;
}   

int mx[N << 2];
void upd(int v, int tl, int tr, int i, int x) {
    mx[v] = x;
    if (tl == tr) 
        return;
    int tm = (tl + tr) >> 1;
    if (i <= tm)
        upd(v * 2 + 1, tl, tm, i, x);
    else
        upd(v * 2 + 2, tm + 1, tr, i, x);
}
int get(int v, int tl, int tr, int l, int r) {
    if (tr < l || r < tl)
        return -1;
    if (l <= tl && tr <= r)
        return mx[v];
    int tm = (tl + tr) >> 1;
    return max(get(v * 2 + 1, tl, tm, l, r), get(v * 2 + 2, tm + 1, tr, l, r));
}

int val[N];

int last(int u) {
    return get(0, 0, N, l[u], r[u]);
}

int getval(int u, int ls) {
    if (ls == -1)
        return a[u];
    else
        return val[ls];
}

struct Fen {
int f[N];
void add(int i, int x) {
    for (; i < N; i |= i + 1) 
        f[i] += x;
}   
void clear(int i) {
    for (; i < N; i |= i + 1)
        f[i] = 0;
}   
int get(int i) {
    int ans = 0;
    for (; i >= 0; i &= i + 1, --i) ans += f[i];
    return ans;
}   
int get(int l, int r) {
    return get(r) - get(l - 1);
}   
} f;

signed main() {
    #ifdef HOME
    freopen("input.txt", "r", stdin);
    #else
    #define endl '\n'
    ios_base::sync_with_stdio(0); cin.tie(0);
    #endif

    for (int i = 0; i < (N << 2); ++i)
        mx[i] = -1;

    cin >> n;
    vector <int> c;
    for (int i = 1; i <= n; ++i) {
        cin >> a[i];
        c.app(a[i]);
    }   
    sort(all(c));
    c.resize(unique(all(c)) - c.begin());
    for (int i = 1; i <= n; ++i)
        a[i] = lower_bound(all(c), a[i]) - c.begin();

    for (int t = 0; t < n - 1; ++t) {
        int u, v;
        cin >> u >> v;
        tree[u].app(v);
        par[v] = u;
        d[t] = mp(u,v);
    }   

    par[1] = 1;
    dfs(1);

    int sum = 0;

    for (int t = 0; t < n - 1; ++t) {
        int u, v;
        tie(u, v) = d[t];

        vector <ii> path;
        while (1) {
            int up = u;
            for (int i = LG - 1; i >= 0; --i)
                if (last(to[up][i]) == last(u))
                    up = to[up][i];
            path.app(mp(getval(u, last(u)), h[u] - h[up] + 1));
            if (up == 1)
                break;
            else
                u = par[up];
        }   

        val[t] = a[v];
        upd(0, 0, N, l[v], t);

        sum += path.size();
        if (sum > 8 * n)
            exit(1);

        int ans = 0;
        for (auto e : path) {
            ans += f.get(e.f - 1) * e.s;
            f.add(e.f, e.s);
        }   
        cout << ans << endl;
        for (auto e : path)
            f.clear(e.f);
    }   
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 5888 KB Output is correct
2 Correct 9 ms 5888 KB Output is correct
3 Correct 9 ms 5888 KB Output is correct
4 Correct 12 ms 6016 KB Output is correct
5 Correct 17 ms 6144 KB Output is correct
6 Correct 16 ms 6016 KB Output is correct
7 Correct 17 ms 6016 KB Output is correct
8 Correct 11 ms 6016 KB Output is correct
9 Correct 11 ms 6016 KB Output is correct
10 Correct 11 ms 6016 KB Output is correct
11 Correct 12 ms 6016 KB Output is correct
12 Correct 13 ms 6016 KB Output is correct
13 Correct 14 ms 6016 KB Output is correct
14 Correct 12 ms 6016 KB Output is correct
15 Correct 26 ms 6016 KB Output is correct
16 Correct 27 ms 6016 KB Output is correct
17 Correct 26 ms 6016 KB Output is correct
18 Correct 30 ms 6016 KB Output is correct
19 Correct 14 ms 6016 KB Output is correct
20 Correct 12 ms 6016 KB Output is correct
21 Correct 12 ms 6144 KB Output is correct
22 Correct 16 ms 6016 KB Output is correct
23 Correct 17 ms 6144 KB Output is correct
24 Correct 17 ms 6016 KB Output is correct
25 Correct 16 ms 6016 KB Output is correct
26 Correct 11 ms 6016 KB Output is correct
27 Correct 12 ms 6016 KB Output is correct
28 Correct 12 ms 6016 KB Output is correct
29 Correct 12 ms 6016 KB Output is correct
30 Correct 27 ms 6076 KB Output is correct
31 Correct 27 ms 6016 KB Output is correct
32 Correct 12 ms 6016 KB Output is correct
33 Correct 12 ms 6016 KB Output is correct
34 Correct 13 ms 6016 KB Output is correct
35 Correct 12 ms 6016 KB Output is correct
36 Correct 13 ms 6016 KB Output is correct
37 Correct 12 ms 6016 KB Output is correct
38 Correct 12 ms 6016 KB Output is correct
39 Correct 12 ms 6016 KB Output is correct
40 Correct 13 ms 6016 KB Output is correct
41 Correct 13 ms 6016 KB Output is correct
42 Correct 13 ms 6016 KB Output is correct
43 Correct 12 ms 6016 KB Output is correct
44 Correct 13 ms 6016 KB Output is correct

Subtask #2
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 5888 KB Output is correct
2 Correct 9 ms 5888 KB Output is correct
3 Correct 9 ms 5888 KB Output is correct
4 Correct 12 ms 6016 KB Output is correct
5 Correct 17 ms 6144 KB Output is correct
6 Correct 16 ms 6016 KB Output is correct
7 Correct 17 ms 6016 KB Output is correct
8 Correct 11 ms 6016 KB Output is correct
9 Correct 11 ms 6016 KB Output is correct
10 Correct 11 ms 6016 KB Output is correct
11 Correct 12 ms 6016 KB Output is correct
12 Correct 13 ms 6016 KB Output is correct
13 Correct 14 ms 6016 KB Output is correct
14 Correct 12 ms 6016 KB Output is correct
15 Correct 26 ms 6016 KB Output is correct
16 Correct 27 ms 6016 KB Output is correct
17 Correct 26 ms 6016 KB Output is correct
18 Correct 30 ms 6016 KB Output is correct
19 Correct 14 ms 6016 KB Output is correct
20 Correct 12 ms 6016 KB Output is correct
21 Correct 12 ms 6144 KB Output is correct
22 Correct 16 ms 6016 KB Output is correct
23 Correct 17 ms 6144 KB Output is correct
24 Correct 17 ms 6016 KB Output is correct
25 Correct 16 ms 6016 KB Output is correct
26 Correct 11 ms 6016 KB Output is correct
27 Correct 12 ms 6016 KB Output is correct
28 Correct 12 ms 6016 KB Output is correct
29 Correct 12 ms 6016 KB Output is correct
30 Correct 27 ms 6076 KB Output is correct
31 Correct 27 ms 6016 KB Output is correct
32 Correct 12 ms 6016 KB Output is correct
33 Correct 12 ms 6016 KB Output is correct
34 Correct 13 ms 6016 KB Output is correct
35 Correct 12 ms 6016 KB Output is correct
36 Correct 13 ms 6016 KB Output is correct
37 Correct 12 ms 6016 KB Output is correct
38 Correct 12 ms 6016 KB Output is correct
39 Correct 12 ms 6016 KB Output is correct
40 Correct 13 ms 6016 KB Output is correct
41 Correct 13 ms 6016 KB Output is correct
42 Correct 13 ms 6016 KB Output is correct
43 Correct 12 ms 6016 KB Output is correct
44 Correct 13 ms 6016 KB Output is correct
45 Correct 26 ms 6144 KB Output is correct
46 Correct 99 ms 7032 KB Output is correct
47 Correct 98 ms 6912 KB Output is correct
48 Correct 112 ms 6912 KB Output is correct
49 Correct 35 ms 7040 KB Output is correct
50 Correct 35 ms 7040 KB Output is correct
51 Correct 39 ms 7160 KB Output is correct
52 Correct 49 ms 7032 KB Output is correct
53 Correct 50 ms 7032 KB Output is correct
54 Correct 49 ms 7032 KB Output is correct
55 Correct 48 ms 7040 KB Output is correct
56 Correct 48 ms 6912 KB Output is correct
57 Runtime error 184 ms 6912 KB Execution failed because the return code was nonzero
58 Halted 0 ms 0 KB -

Subtask #3
0 / 84.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 5888 KB Output is correct
2 Correct 9 ms 5888 KB Output is correct
3 Correct 9 ms 5888 KB Output is correct
4 Correct 12 ms 6016 KB Output is correct
5 Correct 17 ms 6144 KB Output is correct
6 Correct 16 ms 6016 KB Output is correct
7 Correct 17 ms 6016 KB Output is correct
8 Correct 11 ms 6016 KB Output is correct
9 Correct 11 ms 6016 KB Output is correct
10 Correct 11 ms 6016 KB Output is correct
11 Correct 12 ms 6016 KB Output is correct
12 Correct 13 ms 6016 KB Output is correct
13 Correct 14 ms 6016 KB Output is correct
14 Correct 12 ms 6016 KB Output is correct
15 Correct 26 ms 6016 KB Output is correct
16 Correct 27 ms 6016 KB Output is correct
17 Correct 26 ms 6016 KB Output is correct
18 Correct 30 ms 6016 KB Output is correct
19 Correct 14 ms 6016 KB Output is correct
20 Correct 12 ms 6016 KB Output is correct
21 Correct 12 ms 6144 KB Output is correct
22 Correct 16 ms 6016 KB Output is correct
23 Correct 17 ms 6144 KB Output is correct
24 Correct 17 ms 6016 KB Output is correct
25 Correct 16 ms 6016 KB Output is correct
26 Correct 11 ms 6016 KB Output is correct
27 Correct 12 ms 6016 KB Output is correct
28 Correct 12 ms 6016 KB Output is correct
29 Correct 12 ms 6016 KB Output is correct
30 Correct 27 ms 6076 KB Output is correct
31 Correct 27 ms 6016 KB Output is correct
32 Correct 12 ms 6016 KB Output is correct
33 Correct 12 ms 6016 KB Output is correct
34 Correct 13 ms 6016 KB Output is correct
35 Correct 12 ms 6016 KB Output is correct
36 Correct 13 ms 6016 KB Output is correct
37 Correct 12 ms 6016 KB Output is correct
38 Correct 12 ms 6016 KB Output is correct
39 Correct 12 ms 6016 KB Output is correct
40 Correct 13 ms 6016 KB Output is correct
41 Correct 13 ms 6016 KB Output is correct
42 Correct 13 ms 6016 KB Output is correct
43 Correct 12 ms 6016 KB Output is correct
44 Correct 13 ms 6016 KB Output is correct
45 Correct 26 ms 6144 KB Output is correct
46 Correct 99 ms 7032 KB Output is correct
47 Correct 98 ms 6912 KB Output is correct
48 Correct 112 ms 6912 KB Output is correct
49 Correct 35 ms 7040 KB Output is correct
50 Correct 35 ms 7040 KB Output is correct
51 Correct 39 ms 7160 KB Output is correct
52 Correct 49 ms 7032 KB Output is correct
53 Correct 50 ms 7032 KB Output is correct
54 Correct 49 ms 7032 KB Output is correct
55 Correct 48 ms 7040 KB Output is correct
56 Correct 48 ms 6912 KB Output is correct
57 Runtime error 184 ms 6912 KB Execution failed because the return code was nonzero
58 Halted 0 ms 0 KB -