oj.uz

답안 #699888

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
699888 2023-02-18T08:00:38 Z bdl Sushi (JOI16_sushi) C++17
100 / 100
 2032 ms 57272 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 = 900;

char _buf[1 << 20], *_p1, *_p2;
#define getchar() (_p1 == _p2 ? (_p2 = _buf + fread(_p1 = _buf, 1, 1 << 20, stdin), _p1 == _p2 ? EOF : *_p1++) : *_p1++)
int read() {
  int s = 0, w = 1;
  char c = getchar();
  while (c < '0' || c > '9') {
    if (c == '-')
      w = -1;
    c = getchar();
  }
  while (c >= '0' && c <= '9')
    s = (s << 3) + (s << 1) + (c ^ 48), c = getchar();
  return s * w;
}

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() {
  int n = read(), q = read();
  static int a[N];
  for (int i = 0; i < n; i++)
    a[i] = read();
  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 = read() - 1, r = read() - 1, x = read();
    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();
      }
    }
    printf("%d\n", x);
  }
  return 0;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 21 ms 400 KB Output is correct
2 Correct 21 ms 488 KB Output is correct
3 Correct 22 ms 468 KB Output is correct
4 Correct 22 ms 468 KB Output is correct
5 Correct 22 ms 448 KB Output is correct
6 Correct 22 ms 428 KB Output is correct
7 Correct 16 ms 340 KB Output is correct
8 Correct 15 ms 340 KB Output is correct
9 Correct 21 ms 488 KB Output is correct
10 Correct 22 ms 468 KB Output is correct
11 Correct 21 ms 400 KB Output is correct
12 Correct 21 ms 468 KB Output is correct
13 Correct 23 ms 468 KB Output is correct
14 Correct 16 ms 468 KB Output is correct
15 Correct 17 ms 492 KB Output is correct
16 Correct 13 ms 496 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 1 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 1034 ms 56680 KB Output is correct
2 Correct 983 ms 56748 KB Output is correct
3 Correct 163 ms 4772 KB Output is correct
4 Correct 1000 ms 57272 KB Output is correct
5 Correct 666 ms 56240 KB Output is correct
6 Correct 923 ms 56212 KB Output is correct
7 Correct 899 ms 56352 KB Output is correct
8 Correct 827 ms 56396 KB Output is correct
9 Correct 153 ms 4812 KB Output is correct
10 Correct 568 ms 53456 KB Output is correct
11 Correct 151 ms 4884 KB Output is correct
12 Correct 577 ms 53964 KB Output is correct
13 Correct 996 ms 56600 KB Output is correct
14 Correct 982 ms 56580 KB Output is correct
15 Correct 177 ms 4816 KB Output is correct
16 Correct 1012 ms 56544 KB Output is correct
17 Correct 643 ms 56396 KB Output is correct
18 Correct 988 ms 56344 KB Output is correct
19 Correct 953 ms 56404 KB Output is correct
20 Correct 841 ms 56392 KB Output is correct

Subtask #3
80.0 / 80.0

# 결과 실행 시간 메모리 Grader output
1 Correct 21 ms 400 KB Output is correct
2 Correct 21 ms 488 KB Output is correct
3 Correct 22 ms 468 KB Output is correct
4 Correct 22 ms 468 KB Output is correct
5 Correct 22 ms 448 KB Output is correct
6 Correct 22 ms 428 KB Output is correct
7 Correct 16 ms 340 KB Output is correct
8 Correct 15 ms 340 KB Output is correct
9 Correct 21 ms 488 KB Output is correct
10 Correct 22 ms 468 KB Output is correct
11 Correct 21 ms 400 KB Output is correct
12 Correct 21 ms 468 KB Output is correct
13 Correct 23 ms 468 KB Output is correct
14 Correct 16 ms 468 KB Output is correct
15 Correct 17 ms 492 KB Output is correct
16 Correct 13 ms 496 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1034 ms 56680 KB Output is correct
24 Correct 983 ms 56748 KB Output is correct
25 Correct 163 ms 4772 KB Output is correct
26 Correct 1000 ms 57272 KB Output is correct
27 Correct 666 ms 56240 KB Output is correct
28 Correct 923 ms 56212 KB Output is correct
29 Correct 899 ms 56352 KB Output is correct
30 Correct 827 ms 56396 KB Output is correct
31 Correct 153 ms 4812 KB Output is correct
32 Correct 568 ms 53456 KB Output is correct
33 Correct 151 ms 4884 KB Output is correct
34 Correct 577 ms 53964 KB Output is correct
35 Correct 996 ms 56600 KB Output is correct
36 Correct 982 ms 56580 KB Output is correct
37 Correct 177 ms 4816 KB Output is correct
38 Correct 1012 ms 56544 KB Output is correct
39 Correct 643 ms 56396 KB Output is correct
40 Correct 988 ms 56344 KB Output is correct
41 Correct 953 ms 56404 KB Output is correct
42 Correct 841 ms 56392 KB Output is correct
43 Correct 635 ms 5452 KB Output is correct
44 Correct 636 ms 5620 KB Output is correct
45 Correct 346 ms 4892 KB Output is correct
46 Correct 628 ms 5412 KB Output is correct
47 Correct 626 ms 5344 KB Output is correct
48 Correct 1887 ms 6368 KB Output is correct
49 Correct 2009 ms 6356 KB Output is correct
50 Correct 2013 ms 6364 KB Output is correct
51 Correct 2032 ms 6536 KB Output is correct
52 Correct 388 ms 5964 KB Output is correct
53 Correct 396 ms 5960 KB Output is correct
54 Correct 1460 ms 7880 KB Output is correct
55 Correct 1508 ms 7720 KB Output is correct
56 Correct 1500 ms 7616 KB Output is correct
57 Correct 1496 ms 7672 KB Output is correct
58 Correct 1563 ms 7904 KB Output is correct
59 Correct 1518 ms 7904 KB Output is correct
60 Correct 674 ms 56168 KB Output is correct
61 Correct 921 ms 56344 KB Output is correct
62 Correct 901 ms 56120 KB Output is correct
63 Correct 924 ms 56144 KB Output is correct
64 Correct 193 ms 4616 KB Output is correct
65 Correct 364 ms 29600 KB Output is correct
66 Correct 395 ms 30156 KB Output is correct
67 Correct 373 ms 33080 KB Output is correct
68 Correct 519 ms 33196 KB Output is correct
69 Correct 498 ms 33056 KB Output is correct
70 Correct 520 ms 33096 KB Output is correct