oj.uz

Submission #650441

# Submission time Handle Problem Language Result Execution time Memory
650441 2022-10-13T18:24:09 Z ymm Bubble Sort 2 (JOI18_bubblesort2) C++17
60 / 100
 9000 ms 29500 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;

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx")

const int S = 2048+512+128;
const int N = 500'032 + S;
int seg_mx[S*2];
int seg_cnt[S*2];
int qans[N], added_to[N];
int val[N], cnt[N], val_srt[N], srt_ind[N];
int n;

void add_seg(int l, int r, int x)
{
	#define MAX(x, y) ((x)>(y)?(x):(y))
	#define UP(i) seg_mx[i] =   MAX(seg_mx[2*(i)],\
	                                seg_mx[2*(i)+1])\
	                          + seg_cnt[i];
	if (n > 200'000)
		return;
	l += S; r += S;
	for (;;) {
		if (l != r && (l&1)) {
			seg_mx[l] += x;
			seg_cnt[l] += x;
			++l;
		}
		if (l != r && (r&1)) {
			--r;
			seg_mx[r] += x;
			seg_cnt[r] += x;
		}
		l /= 2; r /= 2;
		if (l == 0) break;
		if (l > 1) UP(l-1);
		if (r < S) UP(r);
	}
}

void build_seg(int l)
{
	Loop (i,S,2*S) {
		seg_cnt[i] = cnt[srt_ind[l + i-S]];
		seg_mx[i] = seg_cnt[i];
	}
	LoopR (i,1,S) {
		seg_mx[i] = max(seg_mx[2*i], seg_mx[2*i+1]);
		seg_cnt[i] = 0;
	}
}

void flush_seg(int l)
{
	Loop (i,1,S) {
		seg_cnt[2*i] += seg_cnt[i];
		seg_cnt[2*i+1] += seg_cnt[i];
	}
	Loop (i,S,2*S)
		cnt[srt_ind[l + i-S]] = seg_cnt[i];
}

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 - l;
	xr = lower_bound(val_srt + l, val_srt + l + S, xr) - val_srt - l;
	if (xl < xr)
		add_seg(xl, xr, val);
}

void mov(int i, int x)
{
	int j = i - i%S;
	for (; srt_ind[j] != i; ++j);
	int dst =   lower_bound(val_srt + i-i%S, val_srt + i-i%S + S, x)
	          - val_srt;
	if (j < dst) {
		--dst;
		Loop (k, j, dst) {
			val_srt[k] = val_srt[k+1];
			srt_ind[k] = srt_ind[k+1];
		}
	} else {
		LoopR (k, dst, j) {
			val_srt[k+1] = val_srt[k];
			srt_ind[k+1] = srt_ind[k];
		}
	}
	val_srt[dst] = x;
	srt_ind[dst] = i;
}

void up(int l, int qi, int i, int pre, int x)
{
	if (i < l) {
		int val = pre < x? 1: -1;
		int xl = pre < x? pre: x;
		int xr = pre < x? x: pre;
		up_range(l, xl, xr, val);
	} else if (l <= i && i < l + S) {
		int cnt_gt = added_to[qi];
		flush_seg(i - i%S);
		for (int j = i - i%S; j < i; ++j)
			cnt_gt += val[j] > x;
		cnt[i] = cnt_gt;
		val[i] = x;
		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 - i%S);
	} else {
		added_to[qi] += get_gt(l, x);
	}
}

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);
	}
}
}

vector<int> countScans(vector<int> A, vector<int> X, vector<int> V)
{
	init::init(A);
	vector<int> ans;
	vector<int> U(X.size());
	Loop (i,0,X.size()) {
		U[i] = val[X[i]];
		val[X[i]] = V[i];
	}
	LoopR (i,0,X.size())
		val[X[i]] = U[i];
	for (int l = 0; l < n; l += S) {
		build_seg(l);
		Loop (i,0,X.size()) {
			up(l, i, X[i], U[i], V[i]);
			qans[i] = max(qans[i], seg_mx[1]);
		}
	}
	Loop (i,0,X.size())
		ans.push_back(qans[i]);
	return ans;
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 8276 KB Output is correct
2 Correct 24 ms 8252 KB Output is correct
3 Correct 41 ms 8280 KB Output is correct
4 Correct 39 ms 8276 KB Output is correct
5 Correct 40 ms 8276 KB Output is correct
6 Correct 40 ms 8276 KB Output is correct
7 Correct 39 ms 8288 KB Output is correct
8 Correct 42 ms 8284 KB Output is correct
9 Correct 39 ms 8280 KB Output is correct
10 Correct 39 ms 8300 KB Output is correct
11 Correct 39 ms 8280 KB Output is correct
12 Correct 39 ms 8276 KB Output is correct
13 Correct 40 ms 8276 KB Output is correct
14 Correct 40 ms 8276 KB Output is correct
15 Correct 40 ms 8268 KB Output is correct
16 Correct 42 ms 8276 KB Output is correct
17 Correct 41 ms 8276 KB Output is correct
18 Correct 40 ms 8276 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 8276 KB Output is correct
2 Correct 24 ms 8252 KB Output is correct
3 Correct 41 ms 8280 KB Output is correct
4 Correct 39 ms 8276 KB Output is correct
5 Correct 40 ms 8276 KB Output is correct
6 Correct 40 ms 8276 KB Output is correct
7 Correct 39 ms 8288 KB Output is correct
8 Correct 42 ms 8284 KB Output is correct
9 Correct 39 ms 8280 KB Output is correct
10 Correct 39 ms 8300 KB Output is correct
11 Correct 39 ms 8280 KB Output is correct
12 Correct 39 ms 8276 KB Output is correct
13 Correct 40 ms 8276 KB Output is correct
14 Correct 40 ms 8276 KB Output is correct
15 Correct 40 ms 8268 KB Output is correct
16 Correct 42 ms 8276 KB Output is correct
17 Correct 41 ms 8276 KB Output is correct
18 Correct 40 ms 8276 KB Output is correct
19 Correct 115 ms 8548 KB Output is correct
20 Correct 132 ms 8532 KB Output is correct
21 Correct 129 ms 8532 KB Output is correct
22 Correct 135 ms 8492 KB Output is correct
23 Correct 130 ms 8456 KB Output is correct
24 Correct 135 ms 8532 KB Output is correct
25 Correct 134 ms 8536 KB Output is correct
26 Correct 130 ms 8576 KB Output is correct
27 Correct 131 ms 8564 KB Output is correct
28 Correct 135 ms 8496 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 53 ms 8924 KB Output is correct
2 Correct 439 ms 9556 KB Output is correct
3 Correct 908 ms 10200 KB Output is correct
4 Correct 911 ms 10156 KB Output is correct
5 Correct 873 ms 10084 KB Output is correct
6 Correct 871 ms 10156 KB Output is correct
7 Correct 839 ms 10108 KB Output is correct
8 Correct 833 ms 10188 KB Output is correct
9 Correct 833 ms 10104 KB Output is correct
10 Correct 749 ms 10196 KB Output is correct
11 Correct 748 ms 10112 KB Output is correct
12 Correct 757 ms 10092 KB Output is correct
13 Correct 733 ms 10112 KB Output is correct
14 Correct 733 ms 10208 KB Output is correct
15 Correct 723 ms 10116 KB Output is correct
16 Correct 731 ms 10112 KB Output is correct
17 Correct 726 ms 10196 KB Output is correct
18 Correct 701 ms 10112 KB Output is correct

Subtask #4
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 8276 KB Output is correct
2 Correct 24 ms 8252 KB Output is correct
3 Correct 41 ms 8280 KB Output is correct
4 Correct 39 ms 8276 KB Output is correct
5 Correct 40 ms 8276 KB Output is correct
6 Correct 40 ms 8276 KB Output is correct
7 Correct 39 ms 8288 KB Output is correct
8 Correct 42 ms 8284 KB Output is correct
9 Correct 39 ms 8280 KB Output is correct
10 Correct 39 ms 8300 KB Output is correct
11 Correct 39 ms 8280 KB Output is correct
12 Correct 39 ms 8276 KB Output is correct
13 Correct 40 ms 8276 KB Output is correct
14 Correct 40 ms 8276 KB Output is correct
15 Correct 40 ms 8268 KB Output is correct
16 Correct 42 ms 8276 KB Output is correct
17 Correct 41 ms 8276 KB Output is correct
18 Correct 40 ms 8276 KB Output is correct
19 Correct 115 ms 8548 KB Output is correct
20 Correct 132 ms 8532 KB Output is correct
21 Correct 129 ms 8532 KB Output is correct
22 Correct 135 ms 8492 KB Output is correct
23 Correct 130 ms 8456 KB Output is correct
24 Correct 135 ms 8532 KB Output is correct
25 Correct 134 ms 8536 KB Output is correct
26 Correct 130 ms 8576 KB Output is correct
27 Correct 131 ms 8564 KB Output is correct
28 Correct 135 ms 8496 KB Output is correct
29 Correct 53 ms 8924 KB Output is correct
30 Correct 439 ms 9556 KB Output is correct
31 Correct 908 ms 10200 KB Output is correct
32 Correct 911 ms 10156 KB Output is correct
33 Correct 873 ms 10084 KB Output is correct
34 Correct 871 ms 10156 KB Output is correct
35 Correct 839 ms 10108 KB Output is correct
36 Correct 833 ms 10188 KB Output is correct
37 Correct 833 ms 10104 KB Output is correct
38 Correct 749 ms 10196 KB Output is correct
39 Correct 748 ms 10112 KB Output is correct
40 Correct 757 ms 10092 KB Output is correct
41 Correct 733 ms 10112 KB Output is correct
42 Correct 733 ms 10208 KB Output is correct
43 Correct 723 ms 10116 KB Output is correct
44 Correct 731 ms 10112 KB Output is correct
45 Correct 726 ms 10196 KB Output is correct
46 Correct 701 ms 10112 KB Output is correct
47 Correct 3437 ms 15380 KB Output is correct
48 Execution timed out 9029 ms 29500 KB Time limit exceeded
49 Halted 0 ms 0 KB -