oj.uz

Submission #886135

# Submission time Handle Problem Language Result Execution time Memory
886135 2023-12-11T13:39:05 Z vjudge1 Curtains (NOI23_curtains) C++17
100 / 100
 831 ms 66648 KB 
#include <bits/stdc++.h>

using namespace std;

template<typename A, typename B>
string to_string(pair<A, B>);
string to_string(string S) {
  return '"' + S + '"';
}
string to_string(const char* c) {
  return to_string(string(c));
}
string to_string(bool b) {
  return (b ? "true" : "false");
}
template<size_t T>
string to_string(bitset<T> bs) {
  return bs.to_string();
}
string to_string(vector<bool> v) {
  string res = "{";
  for (int i = 0; i < int(v.size()); ++i) {
    if (int(res.size()) > 1) {
      res += ", ";
    }
    res += to_string(v[i]);
  }
  return res + "}";
}
template<typename T>
string to_string(T v) {
  string res = "{";
  for (auto e : v) {
    if (int(res.size()) > 1) {
      res += ", ";
    }
    res += to_string(e);
  }
  return res + "}";
}
template<typename A, typename B>
string to_string(pair<A, B> p) {
  return '(' + to_string(p.first) + ", " + to_string(p.second) + ')';
}
void debug_out() {
  cerr << endl;
}
template<typename H, typename... T>
void debug_out(H head, T... tail) {
  cerr << "  " << to_string(head);
  debug_out(tail...);
}

#ifdef DEBUG 
  #define debug(...) cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__) 
#else 
  #define debug(...) void(37)
#endif

struct node {
  int mn = -1;
  int tag = -1;
  void modify(int x) {
    tag = max(tag, x);
    mn = max(mn, x);
  }
};
node unite(node x, node y) {
  return node{min(x.mn, y.mn), -1};
}
const int inf = int(1e9);
#define def int mid = (l + r) >> 1, rv = v + ((mid - l + 1) * 2)
struct SegTree {
  vector<node> tree;
  int n;
  void push(int v, int l, int r) {
    def;
    if (tree[v].tag != -1) {
      tree[v + 1].modify(tree[v].tag);
      tree[rv].modify(tree[v].tag);
      tree[v].tag = -1;
    }
  }
  void modify(int v, int l, int r, int ll, int rr, int x) {
    if (l >= ll && rr >= r) {
      tree[v].modify(x);
      return;
    }
    def;
    push(v, l, r);
    if (mid >= ll) {
      modify(v + 1, l, mid, ll, rr, x);
    }
    if (mid < rr) {
      modify(rv, mid + 1, r, ll, rr, x);
    }
    tree[v] = unite(tree[v + 1], tree[rv]);
  }
  int get(int v, int l, int r, int ll, int rr) {
    if (l >= ll && rr >= r) {
      return tree[v].mn;
    }
    def;
    push(v, l, r);
    int res = inf;
    if (mid >= ll) {
      res = min(res, get(v + 1, l, mid, ll, rr));
    }
    if (mid < rr) {
      res = min(res, get(rv, mid + 1, r, ll, rr));
    }
    return res;
  }
  SegTree(int _n) : n(_n) { 
    tree.resize(n * 2);
  }
  void modify(int ll, int rr, int x) {
    modify(0, 0, n - 1, ll, rr, x);
  }
  int get(int ll, int rr) {
    return get(0, 0, n - 1, ll, rr);
  }
};

int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  int N, M, Q;
  cin >> N >> M >> Q;
  vector<int> L(M), R(M);
  for (int i = 0; i < M; ++i) {
    cin >> L[i] >> R[i];
    --L[i], --R[i];
  }
  vector<int> S(Q), E(Q);
  for (int i = 0; i < Q; ++i) {
    cin >> S[i] >> E[i];
    --S[i], --E[i];
  }
  debug(L, R, S, E);
  vector<vector<int>> lefts(N);
  for (int i = 0; i < M; ++i) {
    lefts[R[i]].push_back(L[i]);
  }
  vector<vector<int>> qs(N);
  for (int i = 0; i < Q; ++i) {
    qs[E[i]].push_back(i);
  } 
  debug(lefts, qs);
  vector<bool> ans(Q);
  SegTree st(N);
  for (int i = 0; i < N; ++i) {
    for (auto l : lefts[i]) {
      st.modify(l, i, l);
    }
    for (auto q : qs[i]) {
      ans[q] = st.get(S[q], i) >= S[q];
    }
  }
  for (int i = 0; i < Q; ++i) {
    cout << (ans[i] ? "YES" : "NO") << '\n';
  }
}

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 2 ms 600 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 2 ms 600 KB Output is correct
16 Correct 2 ms 604 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 1 ms 604 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 1 ms 604 KB Output is correct
21 Correct 2 ms 472 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 2 ms 600 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 2 ms 600 KB Output is correct
16 Correct 2 ms 604 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 1 ms 604 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 1 ms 604 KB Output is correct
21 Correct 2 ms 472 KB Output is correct
22 Correct 144 ms 9296 KB Output is correct
23 Correct 151 ms 9576 KB Output is correct
24 Correct 183 ms 11040 KB Output is correct
25 Correct 297 ms 16356 KB Output is correct
26 Correct 155 ms 9520 KB Output is correct
27 Correct 301 ms 16472 KB Output is correct
28 Correct 305 ms 16332 KB Output is correct
29 Correct 131 ms 9028 KB Output is correct
30 Correct 97 ms 9556 KB Output is correct
31 Correct 111 ms 10320 KB Output is correct
32 Correct 276 ms 16464 KB Output is correct
33 Correct 95 ms 9808 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 664 KB Output is correct
8 Correct 96 ms 9508 KB Output is correct
9 Correct 125 ms 10404 KB Output is correct
10 Correct 239 ms 16476 KB Output is correct
11 Correct 107 ms 9696 KB Output is correct
12 Correct 89 ms 13396 KB Output is correct
13 Correct 90 ms 13392 KB Output is correct
14 Correct 65 ms 13452 KB Output is correct
15 Correct 69 ms 13264 KB Output is correct
16 Correct 65 ms 13392 KB Output is correct
17 Correct 91 ms 13244 KB Output is correct
18 Correct 620 ms 65884 KB Output is correct
19 Correct 635 ms 65876 KB Output is correct
20 Correct 490 ms 66648 KB Output is correct
21 Correct 539 ms 65808 KB Output is correct
22 Correct 619 ms 64820 KB Output is correct

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 2 ms 600 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 2 ms 600 KB Output is correct
16 Correct 2 ms 604 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 1 ms 604 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 1 ms 604 KB Output is correct
21 Correct 2 ms 472 KB Output is correct
22 Correct 86 ms 4436 KB Output is correct
23 Correct 87 ms 4432 KB Output is correct
24 Correct 127 ms 12128 KB Output is correct
25 Correct 128 ms 12132 KB Output is correct
26 Correct 105 ms 13420 KB Output is correct
27 Correct 107 ms 13360 KB Output is correct
28 Correct 90 ms 11368 KB Output is correct
29 Correct 104 ms 12704 KB Output is correct
30 Correct 119 ms 12020 KB Output is correct
31 Correct 131 ms 12156 KB Output is correct
32 Correct 135 ms 12628 KB Output is correct
33 Correct 98 ms 12940 KB Output is correct
34 Correct 126 ms 11480 KB Output is correct
35 Correct 130 ms 11900 KB Output is correct
36 Correct 108 ms 12632 KB Output is correct
37 Correct 95 ms 13468 KB Output is correct
38 Correct 98 ms 13480 KB Output is correct
39 Correct 81 ms 13656 KB Output is correct
40 Correct 72 ms 13136 KB Output is correct
41 Correct 85 ms 13580 KB Output is correct
42 Correct 80 ms 13248 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 2 ms 600 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 2 ms 600 KB Output is correct
16 Correct 2 ms 604 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 1 ms 604 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 1 ms 604 KB Output is correct
21 Correct 2 ms 472 KB Output is correct
22 Correct 144 ms 9296 KB Output is correct
23 Correct 151 ms 9576 KB Output is correct
24 Correct 183 ms 11040 KB Output is correct
25 Correct 297 ms 16356 KB Output is correct
26 Correct 155 ms 9520 KB Output is correct
27 Correct 301 ms 16472 KB Output is correct
28 Correct 305 ms 16332 KB Output is correct
29 Correct 131 ms 9028 KB Output is correct
30 Correct 97 ms 9556 KB Output is correct
31 Correct 111 ms 10320 KB Output is correct
32 Correct 276 ms 16464 KB Output is correct
33 Correct 95 ms 9808 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 1 ms 604 KB Output is correct
39 Correct 1 ms 604 KB Output is correct
40 Correct 1 ms 664 KB Output is correct
41 Correct 96 ms 9508 KB Output is correct
42 Correct 125 ms 10404 KB Output is correct
43 Correct 239 ms 16476 KB Output is correct
44 Correct 107 ms 9696 KB Output is correct
45 Correct 89 ms 13396 KB Output is correct
46 Correct 90 ms 13392 KB Output is correct
47 Correct 65 ms 13452 KB Output is correct
48 Correct 69 ms 13264 KB Output is correct
49 Correct 65 ms 13392 KB Output is correct
50 Correct 91 ms 13244 KB Output is correct
51 Correct 620 ms 65884 KB Output is correct
52 Correct 635 ms 65876 KB Output is correct
53 Correct 490 ms 66648 KB Output is correct
54 Correct 539 ms 65808 KB Output is correct
55 Correct 619 ms 64820 KB Output is correct
56 Correct 86 ms 4436 KB Output is correct
57 Correct 87 ms 4432 KB Output is correct
58 Correct 127 ms 12128 KB Output is correct
59 Correct 128 ms 12132 KB Output is correct
60 Correct 105 ms 13420 KB Output is correct
61 Correct 107 ms 13360 KB Output is correct
62 Correct 90 ms 11368 KB Output is correct
63 Correct 104 ms 12704 KB Output is correct
64 Correct 119 ms 12020 KB Output is correct
65 Correct 131 ms 12156 KB Output is correct
66 Correct 135 ms 12628 KB Output is correct
67 Correct 98 ms 12940 KB Output is correct
68 Correct 126 ms 11480 KB Output is correct
69 Correct 130 ms 11900 KB Output is correct
70 Correct 108 ms 12632 KB Output is correct
71 Correct 95 ms 13468 KB Output is correct
72 Correct 98 ms 13480 KB Output is correct
73 Correct 81 ms 13656 KB Output is correct
74 Correct 72 ms 13136 KB Output is correct
75 Correct 85 ms 13580 KB Output is correct
76 Correct 80 ms 13248 KB Output is correct
77 Correct 785 ms 59132 KB Output is correct
78 Correct 831 ms 59148 KB Output is correct
79 Correct 655 ms 65324 KB Output is correct
80 Correct 652 ms 65540 KB Output is correct
81 Correct 623 ms 63504 KB Output is correct
82 Correct 638 ms 64520 KB Output is correct
83 Correct 778 ms 59148 KB Output is correct
84 Correct 783 ms 59164 KB Output is correct
85 Correct 611 ms 61008 KB Output is correct
86 Correct 605 ms 56840 KB Output is correct
87 Correct 621 ms 57624 KB Output is correct
88 Correct 554 ms 63688 KB Output is correct