oj.uz

답안 #699879

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
699879 2023-02-18T07:45:32 Z bdl Sushi (JOI16_sushi) C++17
100 / 100
 2169 ms 50324 KB 
/*
> Statement

You are given a circular array A of length N. You are given Q queries, each giving (l, r, a). You are to run the following code:

for (int i = l; i <= r; i++)
  if (a < A[i])
    swap(a, A[i]);

For each query, output the final value of a.

> Scoring

05: 1 <= N, Q <= 2e3
15: For all queries, l = r = 1
80: 1 <= N <= 4e5, 1 <= Q <= 2.5e4, 1 <= A_i <= 1e9
*/

#include <iostream>
#include <queue>
#include <vector>
using namespace std;

const int N = 4e5, B = 1000;

struct T {
  int *a, n;
  vector<int> u;
  priority_queue<int> v;

  void build(int *a_, int n_) {
    a = a_, n = n_;
    pull();
  }
  void pull() {
    v = priority_queue<int>(a, a + n);
  }
  int force(int l, int r, int x) {
    for (int i = l; i <= r; i++)
      if (x < a[i])
        swap(x, a[i]);
    return x;
  }
  int put(int x) {
    int t = v.top();
    if (x < t) {
      v.pop();
      v.push(x);
      u.push_back(x);
      x = t;
    }
    return x;
  }
  void push() {
    if (u.empty())
      return;
    static priority_queue<int, vector<int>, greater<int>> u_;
    u_ = priority_queue<int, vector<int>, greater<int>>(u.begin(), u.end());
    int t = u_.top();
    for (int i = 0; i < n; i++)
      if (t < a[i]) {
        u_.pop(), u_.push(a[i]);
        a[i] = t, t = u_.top();
      }
    u.clear();
  }
} b[(N - 1) / B + 1];

int main() {
  ios::sync_with_stdio(false);
  cin.tie(NULL);
  int n, q;
  cin >> n >> q;
  static int a[N];
  for (int i = 0; i < n; i++)
    cin >> a[i];
  for (int i = 0; i <= (n - 1) / B; i++)
    b[i].build(a + B * i, min(n, B * (i + 1)) - B * i);
  while (q--) {
    int l, r, x;
    cin >> l >> r >> x, l--, r--;
    if (l <= r) {
      if (l / B == r / B) {
        b[l / B].push();
        x = b[l / B].force(l - l / B * B, r - l / B * B, x);
        b[l / B].pull();
      } else {
        b[l / B].push();
        x = b[l / B].force(l - l / B * B, b[l / B].n - 1, x);
        b[l / B].pull();
        for (int i = l / B + 1; i < r / B; i++)
          x = b[i].put(x);
        b[r / B].push();
        x = b[r / B].force(0, r - r / B * B, x);
        b[r / B].pull();
      }
    } else {
      if (l / B == r / B) {
        b[l / B].push();
        x = b[l / B].force(l - l / B * B, b[l / B].n - 1, x);
        for (int i = l / B + 1; i <= (n - 1) / B; i++)
          x = b[i].put(x);
        for (int i = 0; i < l / B; i++)
          x = b[i].put(x);
        x = b[l / B].force(0, r - l / B * B, x);
        b[l / B].pull();
      } else {
        b[l / B].push();
        x = b[l / B].force(l - l / B * B, b[l / B].n - 1, x);
        b[l / B].pull();
        for (int i = l / B + 1; i <= (n - 1) / B; i++)
          x = b[i].put(x);
        for (int i = 0; i < r / B; i++)
          x = b[i].put(x);
        b[r / B].push();
        x = b[r / B].force(0, r - r / B * B, x);
        b[r / B].pull();
      }
    }
    cout << x << '\n';
  }
  return 0;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 22 ms 384 KB Output is correct
2 Correct 25 ms 340 KB Output is correct
3 Correct 22 ms 396 KB Output is correct
4 Correct 25 ms 380 KB Output is correct
5 Correct 23 ms 380 KB Output is correct
6 Correct 26 ms 340 KB Output is correct
7 Correct 19 ms 340 KB Output is correct
8 Correct 19 ms 340 KB Output is correct
9 Correct 25 ms 380 KB Output is correct
10 Correct 25 ms 396 KB Output is correct
11 Correct 22 ms 340 KB Output is correct
12 Correct 24 ms 396 KB Output is correct
13 Correct 24 ms 340 KB Output is correct
14 Correct 19 ms 400 KB Output is correct
15 Correct 20 ms 396 KB Output is correct
16 Correct 15 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 0 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct

Subtask #2
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1133 ms 50324 KB Output is correct
2 Correct 1171 ms 50124 KB Output is correct
3 Correct 307 ms 3620 KB Output is correct
4 Correct 1141 ms 50112 KB Output is correct
5 Correct 751 ms 49608 KB Output is correct
6 Correct 1067 ms 49540 KB Output is correct
7 Correct 987 ms 49700 KB Output is correct
8 Correct 914 ms 49624 KB Output is correct
9 Correct 237 ms 3620 KB Output is correct
10 Correct 696 ms 47000 KB Output is correct
11 Correct 231 ms 3628 KB Output is correct
12 Correct 593 ms 47888 KB Output is correct
13 Correct 1167 ms 49988 KB Output is correct
14 Correct 1159 ms 49908 KB Output is correct
15 Correct 283 ms 3492 KB Output is correct
16 Correct 1081 ms 50288 KB Output is correct
17 Correct 798 ms 49688 KB Output is correct
18 Correct 1045 ms 49804 KB Output is correct
19 Correct 951 ms 49736 KB Output is correct
20 Correct 928 ms 49788 KB Output is correct

Subtask #3
80.0 / 80.0

# 결과 실행 시간 메모리 Grader output
1 Correct 22 ms 384 KB Output is correct
2 Correct 25 ms 340 KB Output is correct
3 Correct 22 ms 396 KB Output is correct
4 Correct 25 ms 380 KB Output is correct
5 Correct 23 ms 380 KB Output is correct
6 Correct 26 ms 340 KB Output is correct
7 Correct 19 ms 340 KB Output is correct
8 Correct 19 ms 340 KB Output is correct
9 Correct 25 ms 380 KB Output is correct
10 Correct 25 ms 396 KB Output is correct
11 Correct 22 ms 340 KB Output is correct
12 Correct 24 ms 396 KB Output is correct
13 Correct 24 ms 340 KB Output is correct
14 Correct 19 ms 400 KB Output is correct
15 Correct 20 ms 396 KB Output is correct
16 Correct 15 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 0 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1133 ms 50324 KB Output is correct
24 Correct 1171 ms 50124 KB Output is correct
25 Correct 307 ms 3620 KB Output is correct
26 Correct 1141 ms 50112 KB Output is correct
27 Correct 751 ms 49608 KB Output is correct
28 Correct 1067 ms 49540 KB Output is correct
29 Correct 987 ms 49700 KB Output is correct
30 Correct 914 ms 49624 KB Output is correct
31 Correct 237 ms 3620 KB Output is correct
32 Correct 696 ms 47000 KB Output is correct
33 Correct 231 ms 3628 KB Output is correct
34 Correct 593 ms 47888 KB Output is correct
35 Correct 1167 ms 49988 KB Output is correct
36 Correct 1159 ms 49908 KB Output is correct
37 Correct 283 ms 3492 KB Output is correct
38 Correct 1081 ms 50288 KB Output is correct
39 Correct 798 ms 49688 KB Output is correct
40 Correct 1045 ms 49804 KB Output is correct
41 Correct 951 ms 49736 KB Output is correct
42 Correct 928 ms 49788 KB Output is correct
43 Correct 702 ms 4028 KB Output is correct
44 Correct 712 ms 4144 KB Output is correct
45 Correct 390 ms 3540 KB Output is correct
46 Correct 712 ms 4128 KB Output is correct
47 Correct 695 ms 4084 KB Output is correct
48 Correct 2057 ms 4836 KB Output is correct
49 Correct 2169 ms 4828 KB Output is correct
50 Correct 2155 ms 4888 KB Output is correct
51 Correct 2138 ms 4976 KB Output is correct
52 Correct 469 ms 4588 KB Output is correct
53 Correct 449 ms 4412 KB Output is correct
54 Correct 1536 ms 5908 KB Output is correct
55 Correct 1597 ms 6228 KB Output is correct
56 Correct 1584 ms 6124 KB Output is correct
57 Correct 1591 ms 6096 KB Output is correct
58 Correct 1647 ms 6204 KB Output is correct
59 Correct 1673 ms 6512 KB Output is correct
60 Correct 740 ms 49652 KB Output is correct
61 Correct 941 ms 49712 KB Output is correct
62 Correct 1024 ms 49612 KB Output is correct
63 Correct 967 ms 49616 KB Output is correct
64 Correct 234 ms 3504 KB Output is correct
65 Correct 396 ms 26132 KB Output is correct
66 Correct 463 ms 26212 KB Output is correct
67 Correct 482 ms 29080 KB Output is correct
68 Correct 556 ms 29076 KB Output is correct
69 Correct 529 ms 29124 KB Output is correct
70 Correct 528 ms 29104 KB Output is correct