oj.uz

Submission #974877

# Submission time Handle Problem Language Result Execution time Memory
974877 2024-05-04T04:19:29 Z abczz Long Mansion (JOI17_long_mansion) C++14
100 / 100
 1806 ms 163072 KB 
#include <iostream>
#include <vector>
#include <array>
#include <map>
#define ll long long

using namespace std;

vector <ll> V[500000], X, Y;
map <ll, ll> mp;
ll n, k, a, b, q, C[500000], L[500000], R[500000], P[500000];
vector <ll> MX[500000], MN[500000];

struct SegTree{
  vector <ll> st{vector <ll>(2000000, 1e18)};
  vector <ll> st2{vector <ll>(2000000, -1e18)};
  void push(ll id) {
    st[id*2] = min(st[id], st[id*2]);
    st[id*2+1] = min(st[id], st[id*2+1]);
    st2[id*2] = max(st2[id], st2[id*2]);
    st2[id*2+1] = max(st2[id], st2[id*2+1]);
  }
  void updateMN(ll id, ll l, ll r, ll ql, ll qr, ll w) {
    if (qr < l || r < ql) return;
    else if (ql <= l && r <= qr) {
      st[id] = min(st[id], w);
      return;
    }
    ll mid = (l+r)/2;
    updateMN(id*2, l, mid, ql, qr, w);
    updateMN(id*2+1, mid+1, r, ql, qr, w);
  }
  void updateMX(ll id, ll l, ll r, ll ql, ll qr, ll w) {
    if (qr < l || r < ql) return;
    else if (ql <= l && r <= qr) {
      st2[id] = max(st2[id], w);
      return;
    }
    ll mid = (l+r)/2;
    updateMX(id*2, l, mid, ql, qr, w);
    updateMX(id*2+1, mid+1, r, ql, qr, w);
  }
  array<ll, 2> query(ll id, ll l, ll r, ll q) {
    if (l == r) return {st[id], st2[id]};
    push(id);
    ll mid = (l+r)/2;
    if (q <= mid) return query(id*2, l, mid, q);
    else return query(id*2+1, mid+1, r, q);
  }
} ST;
int main() {
  cin >> n;
  for (int i=0; i<n-1; ++i) {
    cin >> C[i];
    --C[i];
  }
  for (int i=0; i<n; ++i) {
    P[i] = -1e18;
    cin >> k;
    while (k--) {
      cin >> a;
      --a;
      V[i].push_back(a);
    }
  }
  for (int i=0; i<n-1; ++i) {
    for (auto u : V[i]) {
      P[u] = i;
    }
    if (P[C[i]] != -1e18) MX[P[C[i]]].push_back(i);
    else X.push_back(i);
    L[i] = P[C[i]];
  }
  for (int i=0; i<n; ++i) P[i] = 1e18;
  for (int i=n-1; i>=0; --i) {
    if (i != n-1) {
      R[i] = P[C[i]];
      if (P[C[i]] != 1e18) MN[P[C[i]]].push_back(i);
      else Y.push_back(i);
    }
    for (auto u : V[i]) {
      P[u] = i;
    }
  }
  for (auto u : X) {
    ++mp[u];
  }
  auto it = mp.lower_bound(0);
  if (it != mp.end()) {
    ST.updateMX(1, 0, n-1, 0, it->first, 0);
  }
  for (ll i=0; i<n-1; ++i) {
    for (auto u : MX[i]) {
      ++mp[u];
    }
    if (R[i] == 1e18) {
      ST.updateMX(1, 0, n-1, i+1, n-1, i+1);
      continue;
    }
    auto it = mp.lower_bound(R[i]);
    if (it != mp.begin()) {
      it = prev(it);
      if (i+1 <= it->first) ST.updateMX(1, 0, n-1, i+1, it->first, i+1);
    }
  }
  mp.clear();
  for (auto u : Y) {
    ++mp[u];
  }
  it = mp.end();
  if (it != mp.begin()) {
    it = prev(it);
    ST.updateMN(1, 0, n-1, it->first+1, n-1, n-1);
  }
  for (ll i=n-1; i>=0; --i) {
    if (i != n-1) {
      if (L[i] == -1e18) {
        ST.updateMN(1, 0, n-1, 0, i, i);
      }
      else {
        auto it = mp.lower_bound(L[i]);
        if (it != mp.end()) {
          if (it->first+1 <= i) ST.updateMN(1, 0, n-1, it->first+1, i, i);
        }
      }
    }
    for (auto u : MN[i]) {
      ++mp[u];
    }
  }
  cin >> q;
  while (q--) {
    cin >> a >> b;
    --a, --b;
    auto u = ST.query(1, 0, n-1, a);
    if (a <= b) {
      if (b <= u[0]) cout << "YES\n";
      else cout << "NO\n";
    }
    else {
      if (u[1] <= b) cout << "YES\n";
      else cout << "NO\n";
    }
  }
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 56 ms 76624 KB Output is correct
2 Correct 29 ms 76888 KB Output is correct
3 Correct 30 ms 77184 KB Output is correct
4 Correct 25 ms 76632 KB Output is correct
5 Correct 26 ms 76636 KB Output is correct
6 Correct 26 ms 76736 KB Output is correct
7 Correct 25 ms 76636 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 56 ms 76624 KB Output is correct
2 Correct 29 ms 76888 KB Output is correct
3 Correct 30 ms 77184 KB Output is correct
4 Correct 25 ms 76632 KB Output is correct
5 Correct 26 ms 76636 KB Output is correct
6 Correct 26 ms 76736 KB Output is correct
7 Correct 25 ms 76636 KB Output is correct
8 Correct 769 ms 78772 KB Output is correct
9 Correct 800 ms 78436 KB Output is correct
10 Correct 816 ms 78460 KB Output is correct
11 Correct 866 ms 78772 KB Output is correct
12 Correct 789 ms 78344 KB Output is correct
13 Correct 772 ms 78444 KB Output is correct
14 Correct 770 ms 78416 KB Output is correct
15 Correct 826 ms 78496 KB Output is correct
16 Correct 761 ms 78572 KB Output is correct
17 Correct 786 ms 78436 KB Output is correct
18 Correct 762 ms 78604 KB Output is correct
19 Correct 761 ms 83164 KB Output is correct
20 Correct 813 ms 82876 KB Output is correct
21 Correct 763 ms 82776 KB Output is correct
22 Correct 761 ms 82776 KB Output is correct
23 Correct 764 ms 82512 KB Output is correct
24 Correct 828 ms 82648 KB Output is correct
25 Correct 779 ms 82652 KB Output is correct
26 Correct 781 ms 82812 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1018 ms 94360 KB Output is correct
2 Correct 979 ms 94596 KB Output is correct
3 Correct 986 ms 94376 KB Output is correct
4 Correct 988 ms 94256 KB Output is correct
5 Correct 979 ms 94480 KB Output is correct
6 Correct 960 ms 93384 KB Output is correct
7 Correct 904 ms 93780 KB Output is correct
8 Correct 898 ms 94008 KB Output is correct
9 Correct 926 ms 93948 KB Output is correct
10 Correct 904 ms 94184 KB Output is correct
11 Correct 910 ms 93980 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 56 ms 76624 KB Output is correct
2 Correct 29 ms 76888 KB Output is correct
3 Correct 30 ms 77184 KB Output is correct
4 Correct 25 ms 76632 KB Output is correct
5 Correct 26 ms 76636 KB Output is correct
6 Correct 26 ms 76736 KB Output is correct
7 Correct 25 ms 76636 KB Output is correct
8 Correct 769 ms 78772 KB Output is correct
9 Correct 800 ms 78436 KB Output is correct
10 Correct 816 ms 78460 KB Output is correct
11 Correct 866 ms 78772 KB Output is correct
12 Correct 789 ms 78344 KB Output is correct
13 Correct 772 ms 78444 KB Output is correct
14 Correct 770 ms 78416 KB Output is correct
15 Correct 826 ms 78496 KB Output is correct
16 Correct 761 ms 78572 KB Output is correct
17 Correct 786 ms 78436 KB Output is correct
18 Correct 762 ms 78604 KB Output is correct
19 Correct 761 ms 83164 KB Output is correct
20 Correct 813 ms 82876 KB Output is correct
21 Correct 763 ms 82776 KB Output is correct
22 Correct 761 ms 82776 KB Output is correct
23 Correct 764 ms 82512 KB Output is correct
24 Correct 828 ms 82648 KB Output is correct
25 Correct 779 ms 82652 KB Output is correct
26 Correct 781 ms 82812 KB Output is correct
27 Correct 1018 ms 94360 KB Output is correct
28 Correct 979 ms 94596 KB Output is correct
29 Correct 986 ms 94376 KB Output is correct
30 Correct 988 ms 94256 KB Output is correct
31 Correct 979 ms 94480 KB Output is correct
32 Correct 960 ms 93384 KB Output is correct
33 Correct 904 ms 93780 KB Output is correct
34 Correct 898 ms 94008 KB Output is correct
35 Correct 926 ms 93948 KB Output is correct
36 Correct 904 ms 94184 KB Output is correct
37 Correct 910 ms 93980 KB Output is correct
38 Correct 1774 ms 148400 KB Output is correct
39 Correct 1806 ms 161424 KB Output is correct
40 Correct 1409 ms 134720 KB Output is correct
41 Correct 1358 ms 163072 KB Output is correct
42 Correct 954 ms 100432 KB Output is correct
43 Correct 990 ms 100812 KB Output is correct
44 Correct 1093 ms 123088 KB Output is correct
45 Correct 1111 ms 123644 KB Output is correct
46 Correct 1084 ms 123808 KB Output is correct
47 Correct 925 ms 101292 KB Output is correct
48 Correct 922 ms 100916 KB Output is correct
49 Correct 1082 ms 123552 KB Output is correct
50 Correct 1116 ms 123528 KB Output is correct
51 Correct 1086 ms 124032 KB Output is correct
52 Correct 1134 ms 118716 KB Output is correct
53 Correct 1252 ms 136648 KB Output is correct
54 Correct 1417 ms 150640 KB Output is correct
55 Correct 1259 ms 135628 KB Output is correct