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Submission #650355

# Submission time Handle Problem Language Result Execution time Memory
650355 2022-10-13T14:56:14 Z ymm Bubble Sort 2 (JOI18_bubblesort2) C++17
60 / 100
 9000 ms 17136 KB 
#include "bubblesort2.h"
#include <bits/stdc++.h>
#define Loop(x,l,r) for (ll x = (l); x < (ll)(r); ++x)
#define LoopR(x,l,r) for (ll x = (r)-1; x >= (ll)(l); --x)
typedef long long ll;
typedef std::pair<int, int> pii;
typedef std::pair<ll , ll > pll;
using namespace std;

const int S = 2048;
const int N = 500'032 + S;
int seg_mx[N/S][S*2-1];
int seg_cnt[N/S][S*2-1];
int val[N], cnt[N], val_srt[N], srt_ind[N];
int n;

void add_seg(int l, int r, int x, int t, int i, int b, int e)
{
	if (l <= b && e <= r) {
		seg_cnt[t][i] += x;
		seg_mx[t][i] += x;
		return;
	}
	if (r <= b || e <= l)
		return;
	add_seg(l, r, x, t, 2*i+1, b, (b+e)/2);
	add_seg(l, r, x, t, 2*i+2, (b+e)/2, e);
	seg_mx[t][i] = max(seg_mx[t][2*i+1], seg_mx[t][2*i+2]);
	seg_mx[t][i] += seg_cnt[t][i];
}

void build_seg(int t, int i, int b, int e)
{
	if (e-b == 1) {
		seg_cnt[t][i] = cnt[srt_ind[b]];
		seg_mx[t][i] = seg_cnt[t][i];
		return;
	}
	build_seg(t, 2*i+1, b, (b+e)/2);
	build_seg(t, 2*i+2, (b+e)/2, e);
	seg_cnt[t][i] = 0;
	seg_mx[t][i] = max(seg_mx[t][2*i+1], seg_mx[t][2*i+2]);
}

void flush_seg(int t, int i, int b, int e)
{
	if (e-b == 1) {
		cnt[srt_ind[b]] = seg_cnt[t][i];
		return;
	}
	seg_cnt[t][2*i+1] += seg_cnt[t][i];
	seg_cnt[t][2*i+2] += seg_cnt[t][i];
	seg_cnt[t][i] = 0;
	flush_seg(t, 2*i+1, b, (b+e)/2);
	flush_seg(t, 2*i+2, (b+e)/2, e);
}

int get_gt(int l, int x)
{
	return S - (  upper_bound(val_srt + l, val_srt + l + S, x)
	            - (val_srt + l));
}

void up_range(int l, int xl, int xr, int val)
{
	xl = lower_bound(val_srt + l, val_srt + l + S, xl) - val_srt;
	xr = lower_bound(val_srt + l, val_srt + l + S, xr) - val_srt;
	if (xl < xr)
		add_seg(xl, xr, val, l/S, 0, l, l + S);
}

void mov(int i, int x)
{
	int j = i - i%S;
	for (; srt_ind[j] != i; ++j);
	val_srt[j] = x;
	while ((j+1)%S && val_srt[j] > val_srt[j+1]) {
		swap(val_srt[j], val_srt[j+1]);
		swap(srt_ind[j], srt_ind[j+1]);
		++j;
	}
	while (j%S && val_srt[j] < val_srt[j-1]) {
		swap(val_srt[j], val_srt[j-1]);
		swap(srt_ind[j], srt_ind[j-1]);
		--j;
	}
}

void up(int i, int x)
{
	int pre = val[i];
	int cnt_gt = 0;
	for (int l = 0; l < i - i%S; l += S)
		cnt_gt += get_gt(l, x);
	flush_seg(i/S, 0, i - i%S, i - i%S + S);
	val[i] = x;
	for (int j = i - i%S; j < i; ++j)
		cnt_gt += val[j] > x;
	cnt[i] = cnt_gt;
	for (int j = i + 1; j < i - i%S + S; ++j)
		cnt[j] += (x > val[j]) - (pre > val[j]);
	mov(i, x);
	build_seg(i/S, 0, i - i%S, i - i%S + S);
	int val = pre < x? 1: -1;
	int xl = pre < x? pre: x;
	int xr = pre < x? x: pre;
	for (int l = i - i%S + S; l < n; l += S)
		up_range(l, xl, xr, val);
}

int get()
{
	int mx = 0;
	for (int l = 0; l < n; l += S)
		mx = max(seg_mx[l/S][0], mx);
	return mx;
}

namespace init {
int fen[N];
void fen_add(int i, int x)
{
	++i;
	while (i < N) {
		fen[i] += x;
		i += i & -i;
	}
}
int fen_get(int r)
{
	int ans = 0;
	while (r > 0) {
		ans += fen[r];
		r -= r & -r;
	}
	return ans;
}
 
void init(vector<int> A)
{
	static pii pii_srt[N];
	n = A.size();
	Loop (i,0,n) {
		val[i] = A[i];
		pii_srt[i] = {val[i], i};
	}
	Loop (i,n,N) {
		val[i] = 1e9+10;
		pii_srt[i] = {val[i], i};
	}
	for (int l = 0; l < n; l += S) {
		sort(pii_srt+l, pii_srt+l+S);
		Loop (i,l,l+S) {
			val_srt[i] = pii_srt[i].first;
			srt_ind[i] = pii_srt[i].second;
		}
	}
	vector<int> cmp(val, val+N);
	sort(cmp.begin(), cmp.end());
	cmp.resize(unique(cmp.begin(), cmp.end()) - cmp.begin());
	int mx = cmp.size() - 1;
	Loop (i,0,n) {
		int j =   lower_bound(cmp.begin(), cmp.end(), val[i])
		        - cmp.begin();
		cnt[i] = fen_get(mx-j);
		fen_add(mx-j, 1);
	}
	for (int l = 0; l < n; l += S)
		build_seg(l/S, 0, l, l+S);
}
}

vector<int> countScans(vector<int> A, vector<int> X, vector<int> V)
{
	init::init(A);
	vector<int> ans;
	Loop (i,0,X.size()) {
		up(X[i], V[i]);
		ans.push_back(get());
	}
	return ans;
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 8276 KB Output is correct
2 Correct 56 ms 8276 KB Output is correct
3 Correct 100 ms 8316 KB Output is correct
4 Correct 100 ms 8276 KB Output is correct
5 Correct 99 ms 8276 KB Output is correct
6 Correct 106 ms 8280 KB Output is correct
7 Correct 101 ms 8276 KB Output is correct
8 Correct 99 ms 8276 KB Output is correct
9 Correct 101 ms 8276 KB Output is correct
10 Correct 99 ms 8276 KB Output is correct
11 Correct 107 ms 8276 KB Output is correct
12 Correct 100 ms 8320 KB Output is correct
13 Correct 102 ms 8276 KB Output is correct
14 Correct 104 ms 8276 KB Output is correct
15 Correct 106 ms 8276 KB Output is correct
16 Correct 110 ms 8276 KB Output is correct
17 Correct 104 ms 8276 KB Output is correct
18 Correct 112 ms 8276 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 8276 KB Output is correct
2 Correct 56 ms 8276 KB Output is correct
3 Correct 100 ms 8316 KB Output is correct
4 Correct 100 ms 8276 KB Output is correct
5 Correct 99 ms 8276 KB Output is correct
6 Correct 106 ms 8280 KB Output is correct
7 Correct 101 ms 8276 KB Output is correct
8 Correct 99 ms 8276 KB Output is correct
9 Correct 101 ms 8276 KB Output is correct
10 Correct 99 ms 8276 KB Output is correct
11 Correct 107 ms 8276 KB Output is correct
12 Correct 100 ms 8320 KB Output is correct
13 Correct 102 ms 8276 KB Output is correct
14 Correct 104 ms 8276 KB Output is correct
15 Correct 106 ms 8276 KB Output is correct
16 Correct 110 ms 8276 KB Output is correct
17 Correct 104 ms 8276 KB Output is correct
18 Correct 112 ms 8276 KB Output is correct
19 Correct 358 ms 8660 KB Output is correct
20 Correct 383 ms 8660 KB Output is correct
21 Correct 371 ms 8668 KB Output is correct
22 Correct 368 ms 8660 KB Output is correct
23 Correct 381 ms 8660 KB Output is correct
24 Correct 374 ms 8660 KB Output is correct
25 Correct 379 ms 8660 KB Output is correct
26 Correct 374 ms 8660 KB Output is correct
27 Correct 386 ms 8660 KB Output is correct
28 Correct 418 ms 8664 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 124 ms 9300 KB Output is correct
2 Correct 1249 ms 10196 KB Output is correct
3 Correct 2553 ms 11084 KB Output is correct
4 Correct 2569 ms 10988 KB Output is correct
5 Correct 2491 ms 10996 KB Output is correct
6 Correct 2555 ms 10900 KB Output is correct
7 Correct 2443 ms 10952 KB Output is correct
8 Correct 2470 ms 10964 KB Output is correct
9 Correct 2456 ms 10996 KB Output is correct
10 Correct 2240 ms 10956 KB Output is correct
11 Correct 2178 ms 10884 KB Output is correct
12 Correct 2170 ms 11000 KB Output is correct
13 Correct 2145 ms 11020 KB Output is correct
14 Correct 2257 ms 11000 KB Output is correct
15 Correct 2164 ms 10988 KB Output is correct
16 Correct 2333 ms 10964 KB Output is correct
17 Correct 2285 ms 10956 KB Output is correct
18 Correct 2433 ms 10880 KB Output is correct

Subtask #4
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 8276 KB Output is correct
2 Correct 56 ms 8276 KB Output is correct
3 Correct 100 ms 8316 KB Output is correct
4 Correct 100 ms 8276 KB Output is correct
5 Correct 99 ms 8276 KB Output is correct
6 Correct 106 ms 8280 KB Output is correct
7 Correct 101 ms 8276 KB Output is correct
8 Correct 99 ms 8276 KB Output is correct
9 Correct 101 ms 8276 KB Output is correct
10 Correct 99 ms 8276 KB Output is correct
11 Correct 107 ms 8276 KB Output is correct
12 Correct 100 ms 8320 KB Output is correct
13 Correct 102 ms 8276 KB Output is correct
14 Correct 104 ms 8276 KB Output is correct
15 Correct 106 ms 8276 KB Output is correct
16 Correct 110 ms 8276 KB Output is correct
17 Correct 104 ms 8276 KB Output is correct
18 Correct 112 ms 8276 KB Output is correct
19 Correct 358 ms 8660 KB Output is correct
20 Correct 383 ms 8660 KB Output is correct
21 Correct 371 ms 8668 KB Output is correct
22 Correct 368 ms 8660 KB Output is correct
23 Correct 381 ms 8660 KB Output is correct
24 Correct 374 ms 8660 KB Output is correct
25 Correct 379 ms 8660 KB Output is correct
26 Correct 374 ms 8660 KB Output is correct
27 Correct 386 ms 8660 KB Output is correct
28 Correct 418 ms 8664 KB Output is correct
29 Correct 124 ms 9300 KB Output is correct
30 Correct 1249 ms 10196 KB Output is correct
31 Correct 2553 ms 11084 KB Output is correct
32 Correct 2569 ms 10988 KB Output is correct
33 Correct 2491 ms 10996 KB Output is correct
34 Correct 2555 ms 10900 KB Output is correct
35 Correct 2443 ms 10952 KB Output is correct
36 Correct 2470 ms 10964 KB Output is correct
37 Correct 2456 ms 10996 KB Output is correct
38 Correct 2240 ms 10956 KB Output is correct
39 Correct 2178 ms 10884 KB Output is correct
40 Correct 2170 ms 11000 KB Output is correct
41 Correct 2145 ms 11020 KB Output is correct
42 Correct 2257 ms 11000 KB Output is correct
43 Correct 2164 ms 10988 KB Output is correct
44 Correct 2333 ms 10964 KB Output is correct
45 Correct 2285 ms 10956 KB Output is correct
46 Correct 2433 ms 10880 KB Output is correct
47 Execution timed out 9070 ms 17136 KB Time limit exceeded
48 Halted 0 ms 0 KB -