oj.uz

Submission #705811

# Submission time Handle Problem Language Result Execution time Memory
705811 2023-03-05T10:52:27 Z dooompy Long Mansion (JOI17_long_mansion) C++17
100 / 100
 380 ms 69832 KB 
#include "bits/stdc++.h"

using namespace std;

void abc() {cout << endl;}
template <typename T, typename ...U> void abc(T a, U ...b) {
    cout << a << ' ', abc(b...);
}
template <typename T> void printv(T l, T r) {
    while (l != r) cout << *l << " \n"[++l == r];
}
template <typename A, typename B> istream& operator >> (istream& o, pair<A, B> &a) {
    return o >> a.first >> a.second;
}
template <typename A, typename B> ostream& operator << (ostream& o, pair<A, B> a) {
    return o << '(' << a.first << ", " << a.second << ')';
}
template <typename T> ostream& operator << (ostream& o, vector<T> a) {
    bool is = false;
    for (T i : a) {o << (is ? ' ' : '{'), is = true, o << i;}
    return o << '}';
}

#ifdef local
#define test(args...) abc("[" + string(#args) + "]", args)
#else
#define test(args...) void(0)
#endif

using ll = long long;

int col[500005];
vector<int> keys[500005];
int seen[500005];
int leftt[500005], rightt[500005], par[500005];

int find(int node) {
    if (par[node] == node) return node;
    return (par[node] = find(par[node]));
}

void Union(int a, int b) {
    a = find(a); b = find(b);
    if (a == b) return;
    par[a] = b;
}

void dfs(int node) {
    seen[node] = 1;
    par[node] = node;
    leftt[node] = rightt[node] = node;

    while (1) {
        // try to extend
        int curleft = leftt[find(node)], curright = rightt[find(node)];

        if (lower_bound(keys[col[curleft - 1]].begin(), keys[col[curleft - 1]].end(), curleft) != upper_bound(keys[col[curleft - 1]].begin(), keys[col[curleft - 1]].end(), curright)) {
            // can extend to left
            leftt[find(node)] = leftt[find(curleft - 1)];
            if (seen[curleft - 1] == 1 && find(curleft - 1) != find(node)) {
                Union(node, curleft - 1);
                rightt[find(node)] = rightt[node];
            }
        }

        if (lower_bound(keys[col[curright]].begin(), keys[col[curright]].end(), curleft) != upper_bound(keys[col[curright]].begin(), keys[col[curright]].end(), curright)) {
            if (seen[curright + 1] == 0) dfs(curright + 1);

            rightt[find(node)] = rightt[find(curright + 1)];
        }

        if (curleft == leftt[find(node)] && curright == rightt[find(node)]) break;
    }

    seen[node] = 2;
}

int ansl[500005], ansr[500005];

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
//    freopen("", "r", stdin);
//    freopen("", "w", stdout);
    int n; cin >> n;
    for (int i = 1; i < n; i++) cin >> col[i];

    for (int i = 1; i <= n; i++) {
        int x; cin >> x;
        for (int j = 0; j < x; j++) {
            int t; cin >> t;
            keys[t].push_back(i);
        }
    }

    for (int i = 1; i <= n; i++) {
        if (!seen[i]) dfs(i);
    }

    for (int i = 1; i <= n; i++) {
        ansl[i] = leftt[find(i)];
        ansr[i] = rightt[find(i)];
    }

    int q ;cin >> q;
    while (q--) {
        int x, y; cin >> x >> y;

        if (y > ansr[x] || y < ansl[x]) {
            cout << "NO\n";
        } else cout << "YES\n";
    }
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 12244 KB Output is correct
2 Correct 9 ms 12372 KB Output is correct
3 Correct 10 ms 12628 KB Output is correct
4 Correct 9 ms 12244 KB Output is correct
5 Correct 8 ms 12476 KB Output is correct
6 Correct 8 ms 12244 KB Output is correct
7 Correct 7 ms 12352 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 12244 KB Output is correct
2 Correct 9 ms 12372 KB Output is correct
3 Correct 10 ms 12628 KB Output is correct
4 Correct 9 ms 12244 KB Output is correct
5 Correct 8 ms 12476 KB Output is correct
6 Correct 8 ms 12244 KB Output is correct
7 Correct 7 ms 12352 KB Output is correct
8 Correct 93 ms 18116 KB Output is correct
9 Correct 86 ms 18068 KB Output is correct
10 Correct 99 ms 18476 KB Output is correct
11 Correct 88 ms 19008 KB Output is correct
12 Correct 78 ms 17740 KB Output is correct
13 Correct 86 ms 18300 KB Output is correct
14 Correct 84 ms 18252 KB Output is correct
15 Correct 84 ms 18324 KB Output is correct
16 Correct 83 ms 18380 KB Output is correct
17 Correct 84 ms 18308 KB Output is correct
18 Correct 84 ms 18324 KB Output is correct
19 Correct 83 ms 18276 KB Output is correct
20 Correct 85 ms 18432 KB Output is correct
21 Correct 90 ms 18296 KB Output is correct
22 Correct 89 ms 18272 KB Output is correct
23 Correct 87 ms 18100 KB Output is correct
24 Correct 85 ms 18132 KB Output is correct
25 Correct 86 ms 18044 KB Output is correct
26 Correct 90 ms 18108 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 176 ms 27144 KB Output is correct
2 Correct 172 ms 27900 KB Output is correct
3 Correct 172 ms 30108 KB Output is correct
4 Correct 175 ms 27300 KB Output is correct
5 Correct 181 ms 27628 KB Output is correct
6 Correct 151 ms 29096 KB Output is correct
7 Correct 152 ms 34192 KB Output is correct
8 Correct 147 ms 34604 KB Output is correct
9 Correct 140 ms 34500 KB Output is correct
10 Correct 139 ms 34900 KB Output is correct
11 Correct 144 ms 34908 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 12244 KB Output is correct
2 Correct 9 ms 12372 KB Output is correct
3 Correct 10 ms 12628 KB Output is correct
4 Correct 9 ms 12244 KB Output is correct
5 Correct 8 ms 12476 KB Output is correct
6 Correct 8 ms 12244 KB Output is correct
7 Correct 7 ms 12352 KB Output is correct
8 Correct 93 ms 18116 KB Output is correct
9 Correct 86 ms 18068 KB Output is correct
10 Correct 99 ms 18476 KB Output is correct
11 Correct 88 ms 19008 KB Output is correct
12 Correct 78 ms 17740 KB Output is correct
13 Correct 86 ms 18300 KB Output is correct
14 Correct 84 ms 18252 KB Output is correct
15 Correct 84 ms 18324 KB Output is correct
16 Correct 83 ms 18380 KB Output is correct
17 Correct 84 ms 18308 KB Output is correct
18 Correct 84 ms 18324 KB Output is correct
19 Correct 83 ms 18276 KB Output is correct
20 Correct 85 ms 18432 KB Output is correct
21 Correct 90 ms 18296 KB Output is correct
22 Correct 89 ms 18272 KB Output is correct
23 Correct 87 ms 18100 KB Output is correct
24 Correct 85 ms 18132 KB Output is correct
25 Correct 86 ms 18044 KB Output is correct
26 Correct 90 ms 18108 KB Output is correct
27 Correct 176 ms 27144 KB Output is correct
28 Correct 172 ms 27900 KB Output is correct
29 Correct 172 ms 30108 KB Output is correct
30 Correct 175 ms 27300 KB Output is correct
31 Correct 181 ms 27628 KB Output is correct
32 Correct 151 ms 29096 KB Output is correct
33 Correct 152 ms 34192 KB Output is correct
34 Correct 147 ms 34604 KB Output is correct
35 Correct 140 ms 34500 KB Output is correct
36 Correct 139 ms 34900 KB Output is correct
37 Correct 144 ms 34908 KB Output is correct
38 Correct 235 ms 39236 KB Output is correct
39 Correct 242 ms 41676 KB Output is correct
40 Correct 210 ms 35476 KB Output is correct
41 Correct 380 ms 69832 KB Output is correct
42 Correct 148 ms 25580 KB Output is correct
43 Correct 139 ms 25576 KB Output is correct
44 Correct 217 ms 32908 KB Output is correct
45 Correct 213 ms 33228 KB Output is correct
46 Correct 242 ms 33808 KB Output is correct
47 Correct 144 ms 31168 KB Output is correct
48 Correct 142 ms 30600 KB Output is correct
49 Correct 208 ms 34616 KB Output is correct
50 Correct 226 ms 37036 KB Output is correct
51 Correct 236 ms 38308 KB Output is correct
52 Correct 170 ms 36404 KB Output is correct
53 Correct 202 ms 45840 KB Output is correct
54 Correct 230 ms 51416 KB Output is correct
55 Correct 194 ms 43896 KB Output is correct