oj.uz

Submission #1096942

# Submission time Handle Problem Language Result Execution time Memory
1096942 2024-10-05T13:57:51 Z vladilius Long Mansion (JOI17_long_mansion) C++17
25 / 100
 3000 ms 87632 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int, int>;
#define pb push_back
#define ff first
#define ss second
#define arr3 array<int, 3>

struct ST{
    vector<pii> t;
    vector<int> a;
    int n;
    ST(int ns){
        n = ns;
        t.resize(4 * n);
        a.resize(n + 1);
    }
    void upd(int v, int tl, int tr, int& p, int& x){
        if (tl == tr){
            t[v] = {x, x};
            return;
        }
        int tm = (tl + tr) / 2, vv = 2 * v;
        if (p <= tm){
            upd(vv, tl, tm, p, x);
        }
        else {
            upd(vv + 1, tm + 1, tr, p, x);
        }
        t[v].ff = min(t[vv].ff, t[vv + 1].ff);
        t[v].ss = max(t[vv].ss, t[vv + 1].ss);
    }
    void upd(int p, int x){
        upd(1, 1, n, p, x);
        a[p] = x;
    }
    vector<arr3> all;
    void dec(int v, int tl, int tr, int& l, int& r){
        if (l > tr || r < tl) return;
        if (l <= tl && tr <= r){
            all.pb({v, tl, tr});
            return;
        }
        int tm = (tl + tr) / 2, vv = 2 * v;
        dec(vv, tl, tm, l, r);
        dec(vv + 1, tm + 1, tr, l, r);
    }
    int fn1(int v, int tl, int tr, int& x){
        if (tl == tr) return tl;
        int tm = (tl + tr) / 2, vv = 2 * v;
        if (t[vv + 1].ss > x){
            return fn1(vv + 1, tm + 1, tr, x);
        }
        return fn1(vv, tl, tm, x);
    }
    int find1(int l, int r, int x){
        if (l > r || a[r] > x) return -1;
        all.clear();
        dec(1, 1, n, l, r);
        reverse(all.begin(), all.end());
        for (auto [v, tl, tr]: all){
            if (t[v].ss > x){
                return fn1(v, tl, tr, x) + 1;
            }
        }
        return l;
    }
    int fn2(int v, int tl, int tr, int& x){
        if (tl == tr) return tl;
        int tm = (tl + tr) / 2, vv = 2 * v;
        if (t[vv].ff < x){
            return fn2(vv, tl, tm, x);
        }
        return fn2(vv + 1, tm + 1, tr, x);
    }
    int find2(int l, int r, int x){
        if (l > r || a[l] < x) return -1;
        all.clear();
        dec(1, 1, n, l, r);
        for (auto [v, tl, tr]: all){
            if (t[v].ff < x){
                return fn2(v, tl, tr, x) - 1;
            }
        }
        return r;
    }
};

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    
    int n; cin>>n;
    vector<int> c(n);
    for (int i = 1; i < n; i++){
        cin>>c[i];
    }
    
    vector<int> A[n + 1];
    for (int i = 1; i <= n; i++){
        int x; cin>>x;
        while (x--){
            int y; cin>>y;
            A[i].pb(y);
        }
    }
    
    vector<int> x(n), lst(n + 1, n + 1);
    for (int i = n; i > 0; i--){
        if (i < n){
            x[i] = lst[c[i]];
        }
        for (int j: A[i]){
            lst[j] = i;
        }
    }
    
    fill(lst.begin(), lst.end(), 0);
    vector<int> y(n);
    for (int i = 1; i < n; i++){
        for (int j: A[i]){
            lst[j] = i;
        }
        y[i] = lst[c[i]];
    }
    
    ST T1(n - 1), T2(n - 1);
    for (int i = 1; i < n; i++){
        T1.upd(i, x[i]);
        T2.upd(i, y[i]);
    }

    vector<pii> rr(n + 1);
    for (int i = 1; i <= n; i++){
        int l = i, r = i;
        while (true){
            bool ind1 = 0, ind2 = 0;
            int j = T1.find1(1, l - 1, r);
            if (j != -1){
                l = j;
                ind1 = 1;
            }
            j = T2.find2(r, n - 1, l);
            if (j != -1){
                r = j + 1;
                ind2 = 1;
            }
            if (!ind1 && !ind2) break;
        }
        rr[i] = {l, r};
    }
    
    int Q; cin>>Q;
    while (Q--){
        int x, y; cin>>x>>y;
        cout<<((rr[x].ff <= y && y <= rr[x].ss) ? "YES" : "NO")<<"\n";
    }
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 604 KB Output is correct
2 Correct 2 ms 860 KB Output is correct
3 Correct 3 ms 1116 KB Output is correct
4 Correct 3 ms 604 KB Output is correct
5 Correct 2 ms 604 KB Output is correct
6 Correct 3 ms 604 KB Output is correct
7 Correct 38 ms 812 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 604 KB Output is correct
2 Correct 2 ms 860 KB Output is correct
3 Correct 3 ms 1116 KB Output is correct
4 Correct 3 ms 604 KB Output is correct
5 Correct 2 ms 604 KB Output is correct
6 Correct 3 ms 604 KB Output is correct
7 Correct 38 ms 812 KB Output is correct
8 Correct 76 ms 6480 KB Output is correct
9 Correct 62 ms 6480 KB Output is correct
10 Correct 63 ms 6940 KB Output is correct
11 Correct 67 ms 7508 KB Output is correct
12 Correct 64 ms 5972 KB Output is correct
13 Correct 61 ms 6740 KB Output is correct
14 Correct 62 ms 6740 KB Output is correct
15 Correct 60 ms 6792 KB Output is correct
16 Correct 59 ms 6484 KB Output is correct
17 Correct 65 ms 6740 KB Output is correct
18 Correct 64 ms 6840 KB Output is correct
19 Correct 65 ms 6744 KB Output is correct
20 Correct 63 ms 6740 KB Output is correct
21 Correct 60 ms 6480 KB Output is correct
22 Correct 74 ms 6548 KB Output is correct
23 Correct 88 ms 6484 KB Output is correct
24 Correct 97 ms 6708 KB Output is correct
25 Correct 111 ms 6480 KB Output is correct
26 Correct 86 ms 6476 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 151 ms 24964 KB Output is correct
2 Correct 153 ms 24612 KB Output is correct
3 Correct 158 ms 24400 KB Output is correct
4 Correct 148 ms 24764 KB Output is correct
5 Correct 163 ms 24748 KB Output is correct
6 Correct 164 ms 23376 KB Output is correct
7 Correct 139 ms 23360 KB Output is correct
8 Correct 139 ms 23120 KB Output is correct
9 Correct 148 ms 23124 KB Output is correct
10 Correct 145 ms 23124 KB Output is correct
11 Correct 136 ms 23124 KB Output is correct

Subtask #4
0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 604 KB Output is correct
2 Correct 2 ms 860 KB Output is correct
3 Correct 3 ms 1116 KB Output is correct
4 Correct 3 ms 604 KB Output is correct
5 Correct 2 ms 604 KB Output is correct
6 Correct 3 ms 604 KB Output is correct
7 Correct 38 ms 812 KB Output is correct
8 Correct 76 ms 6480 KB Output is correct
9 Correct 62 ms 6480 KB Output is correct
10 Correct 63 ms 6940 KB Output is correct
11 Correct 67 ms 7508 KB Output is correct
12 Correct 64 ms 5972 KB Output is correct
13 Correct 61 ms 6740 KB Output is correct
14 Correct 62 ms 6740 KB Output is correct
15 Correct 60 ms 6792 KB Output is correct
16 Correct 59 ms 6484 KB Output is correct
17 Correct 65 ms 6740 KB Output is correct
18 Correct 64 ms 6840 KB Output is correct
19 Correct 65 ms 6744 KB Output is correct
20 Correct 63 ms 6740 KB Output is correct
21 Correct 60 ms 6480 KB Output is correct
22 Correct 74 ms 6548 KB Output is correct
23 Correct 88 ms 6484 KB Output is correct
24 Correct 97 ms 6708 KB Output is correct
25 Correct 111 ms 6480 KB Output is correct
26 Correct 86 ms 6476 KB Output is correct
27 Correct 151 ms 24964 KB Output is correct
28 Correct 153 ms 24612 KB Output is correct
29 Correct 158 ms 24400 KB Output is correct
30 Correct 148 ms 24764 KB Output is correct
31 Correct 163 ms 24748 KB Output is correct
32 Correct 164 ms 23376 KB Output is correct
33 Correct 139 ms 23360 KB Output is correct
34 Correct 139 ms 23120 KB Output is correct
35 Correct 148 ms 23124 KB Output is correct
36 Correct 145 ms 23124 KB Output is correct
37 Correct 136 ms 23124 KB Output is correct
38 Correct 272 ms 72884 KB Output is correct
39 Correct 302 ms 87632 KB Output is correct
40 Correct 226 ms 56936 KB Output is correct
41 Correct 427 ms 86120 KB Output is correct
42 Correct 128 ms 24404 KB Output is correct
43 Correct 131 ms 24400 KB Output is correct
44 Correct 205 ms 41968 KB Output is correct
45 Correct 205 ms 42064 KB Output is correct
46 Correct 204 ms 42320 KB Output is correct
47 Correct 132 ms 24400 KB Output is correct
48 Correct 168 ms 24148 KB Output is correct
49 Correct 233 ms 41808 KB Output is correct
50 Correct 235 ms 41980 KB Output is correct
51 Correct 252 ms 42328 KB Output is correct
52 Execution timed out 3051 ms 33360 KB Time limit exceeded
53 Halted 0 ms 0 KB -