oj.uz

Submission #1012187

# Submission time Handle Problem Language Result Execution time Memory
1012187 2024-07-01T19:21:54 Z d4xn Bubble Sort 2 (JOI18_bubblesort2) C++17
17 / 100
 9000 ms 1624 KB 
#pragma GCC optimize ("Ofast")
#include "bubblesort2.h"
#include <bits/stdc++.h>
using namespace std;

const int N = 8000;

int n, seg[N*4];
pair<int, int> b[N];

void update(int x, int p=1, int l=0, int r=n-1) {
  if (l == r) {
    seg[p] = 1;
    return;
  }
  int mid = (l+r) >> 1;

  if (x <= mid) update(x, p*2, l, mid);
  else update(x, p*2+1, mid+1, r);

  seg[p] = seg[p*2] + seg[p*2+1];
}

int query(int L, int R, int p=1, int l=0, int r=n-1) {
  if (L <= l && r <= R) {
    return seg[p];
  }
  int mid = (l+r) >> 1;

	int x = 0;
  if (L <= mid) x += query(L, R, p*2, l, mid);
  if (mid+1 <= R) x += query(L, R, p*2+1, mid+1, r);

	return x;
}


int solve(vector<int> a) {
	memset(seg, 0, sizeof(seg));

	for (int i = 0; i < n; i++) {
		b[i] = make_pair(a[i], i);
	}
	sort(b, b+n);

	int mx = 0;
	int R = n-1;
	for (int i = n-1; i >= 0; i--) {
		int idx = b[i].second;

		update(b[i].second);

		if (idx+1 <= n-1 && query(idx+1, n-1) != n-1 - idx) continue;

		int x = (idx ? query(0, idx-1) : 0);

		while (R >= 0 && a[R] >= a[idx]) R--;

		if (idx < R) x += query(idx+1, R);

		//cerr << i << " " << x << endl;

		mx = max(mx, x);
	}
	
	return mx;
}

vector<int> countScans(vector<int> A, vector<int> X, vector<int> V){
	n = A.size();
	int q = X.size();
	vector<int> ans(q);

	for (int j = 0; j < q; j++) {
		A[X[j]] = V[j];
		ans[j] = solve(A);
	}

	return ans;
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 348 KB Output is correct
2 Correct 53 ms 576 KB Output is correct
3 Correct 542 ms 624 KB Output is correct
4 Correct 534 ms 636 KB Output is correct
5 Correct 522 ms 624 KB Output is correct
6 Correct 540 ms 600 KB Output is correct
7 Correct 597 ms 604 KB Output is correct
8 Correct 577 ms 600 KB Output is correct
9 Correct 529 ms 600 KB Output is correct
10 Correct 455 ms 620 KB Output is correct
11 Correct 498 ms 600 KB Output is correct
12 Correct 486 ms 624 KB Output is correct
13 Correct 479 ms 620 KB Output is correct
14 Correct 491 ms 600 KB Output is correct
15 Correct 475 ms 616 KB Output is correct
16 Correct 482 ms 604 KB Output is correct
17 Correct 491 ms 628 KB Output is correct
18 Correct 463 ms 620 KB Output is correct

Subtask #2
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 348 KB Output is correct
2 Correct 53 ms 576 KB Output is correct
3 Correct 542 ms 624 KB Output is correct
4 Correct 534 ms 636 KB Output is correct
5 Correct 522 ms 624 KB Output is correct
6 Correct 540 ms 600 KB Output is correct
7 Correct 597 ms 604 KB Output is correct
8 Correct 577 ms 600 KB Output is correct
9 Correct 529 ms 600 KB Output is correct
10 Correct 455 ms 620 KB Output is correct
11 Correct 498 ms 600 KB Output is correct
12 Correct 486 ms 624 KB Output is correct
13 Correct 479 ms 620 KB Output is correct
14 Correct 491 ms 600 KB Output is correct
15 Correct 475 ms 616 KB Output is correct
16 Correct 482 ms 604 KB Output is correct
17 Correct 491 ms 628 KB Output is correct
18 Correct 463 ms 620 KB Output is correct
19 Correct 7987 ms 848 KB Output is correct
20 Execution timed out 9042 ms 856 KB Time limit exceeded
21 Halted 0 ms 0 KB -

Subtask #3
0 / 22.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 1624 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 348 KB Output is correct
2 Correct 53 ms 576 KB Output is correct
3 Correct 542 ms 624 KB Output is correct
4 Correct 534 ms 636 KB Output is correct
5 Correct 522 ms 624 KB Output is correct
6 Correct 540 ms 600 KB Output is correct
7 Correct 597 ms 604 KB Output is correct
8 Correct 577 ms 600 KB Output is correct
9 Correct 529 ms 600 KB Output is correct
10 Correct 455 ms 620 KB Output is correct
11 Correct 498 ms 600 KB Output is correct
12 Correct 486 ms 624 KB Output is correct
13 Correct 479 ms 620 KB Output is correct
14 Correct 491 ms 600 KB Output is correct
15 Correct 475 ms 616 KB Output is correct
16 Correct 482 ms 604 KB Output is correct
17 Correct 491 ms 628 KB Output is correct
18 Correct 463 ms 620 KB Output is correct
19 Correct 7987 ms 848 KB Output is correct
20 Execution timed out 9042 ms 856 KB Time limit exceeded
21 Halted 0 ms 0 KB -