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Submission #650407

# Submission time Handle Problem Language Result Execution time Memory
650407 2022-10-13T16:52:34 Z ymm Bubble Sort 2 (JOI18_bubblesort2) C++17
60 / 100
 9000 ms 34176 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;
const int N = 500'032 + S;
int seg_mx[N/S][S*2];
int seg_cnt[N/S][S*2];
int val[N], cnt[N], val_srt[N], srt_ind[N];
int n;

void add_seg(int l, int r, int x, int t)
{
	#define UP(i) seg_mx[t][i] =   max(seg_mx[t][2*(i)],\
	                                   seg_mx[t][2*(i)+1])\
	                             + seg_cnt[t][i];
	l += S; r += S;
	Loop (_,0,12) {
		if (l != r && (l&1)) {
			seg_mx[t][l] += x;
			seg_cnt[t][l] += x;
			++l;
		}
		if (l != r && (r&1)) {
			--r;
			seg_mx[t][r] += x;
			seg_cnt[t][r] += x;
		}
		l /= 2; r /= 2;
		if (1 < l && l <= S) UP(l-1);
		if (1 <= r && r < S) UP(r);
	}
}

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

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

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 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);
	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);
	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][1], 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);
}
}

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 21 ms 8276 KB Output is correct
2 Correct 27 ms 8256 KB Output is correct
3 Correct 42 ms 8276 KB Output is correct
4 Correct 42 ms 8288 KB Output is correct
5 Correct 44 ms 8276 KB Output is correct
6 Correct 47 ms 8276 KB Output is correct
7 Correct 49 ms 8276 KB Output is correct
8 Correct 43 ms 8276 KB Output is correct
9 Correct 39 ms 8276 KB Output is correct
10 Correct 42 ms 8276 KB Output is correct
11 Correct 40 ms 8292 KB Output is correct
12 Correct 44 ms 8340 KB Output is correct
13 Correct 46 ms 8276 KB Output is correct
14 Correct 44 ms 8260 KB Output is correct
15 Correct 45 ms 8276 KB Output is correct
16 Correct 44 ms 8276 KB Output is correct
17 Correct 42 ms 8284 KB Output is correct
18 Correct 39 ms 8276 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 8276 KB Output is correct
2 Correct 27 ms 8256 KB Output is correct
3 Correct 42 ms 8276 KB Output is correct
4 Correct 42 ms 8288 KB Output is correct
5 Correct 44 ms 8276 KB Output is correct
6 Correct 47 ms 8276 KB Output is correct
7 Correct 49 ms 8276 KB Output is correct
8 Correct 43 ms 8276 KB Output is correct
9 Correct 39 ms 8276 KB Output is correct
10 Correct 42 ms 8276 KB Output is correct
11 Correct 40 ms 8292 KB Output is correct
12 Correct 44 ms 8340 KB Output is correct
13 Correct 46 ms 8276 KB Output is correct
14 Correct 44 ms 8260 KB Output is correct
15 Correct 45 ms 8276 KB Output is correct
16 Correct 44 ms 8276 KB Output is correct
17 Correct 42 ms 8284 KB Output is correct
18 Correct 39 ms 8276 KB Output is correct
19 Correct 127 ms 8584 KB Output is correct
20 Correct 141 ms 8696 KB Output is correct
21 Correct 140 ms 8644 KB Output is correct
22 Correct 137 ms 8660 KB Output is correct
23 Correct 136 ms 8772 KB Output is correct
24 Correct 138 ms 8660 KB Output is correct
25 Correct 130 ms 8660 KB Output is correct
26 Correct 132 ms 8660 KB Output is correct
27 Correct 136 ms 8764 KB Output is correct
28 Correct 142 ms 8768 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 53 ms 9296 KB Output is correct
2 Correct 484 ms 10136 KB Output is correct
3 Correct 970 ms 10956 KB Output is correct
4 Correct 960 ms 11000 KB Output is correct
5 Correct 967 ms 10964 KB Output is correct
6 Correct 947 ms 10996 KB Output is correct
7 Correct 919 ms 10956 KB Output is correct
8 Correct 966 ms 10960 KB Output is correct
9 Correct 917 ms 10956 KB Output is correct
10 Correct 760 ms 10956 KB Output is correct
11 Correct 766 ms 10964 KB Output is correct
12 Correct 762 ms 10996 KB Output is correct
13 Correct 747 ms 11004 KB Output is correct
14 Correct 759 ms 11008 KB Output is correct
15 Correct 734 ms 10984 KB Output is correct
16 Correct 734 ms 11012 KB Output is correct
17 Correct 699 ms 10964 KB Output is correct
18 Correct 723 ms 10956 KB Output is correct

Subtask #4
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 8276 KB Output is correct
2 Correct 27 ms 8256 KB Output is correct
3 Correct 42 ms 8276 KB Output is correct
4 Correct 42 ms 8288 KB Output is correct
5 Correct 44 ms 8276 KB Output is correct
6 Correct 47 ms 8276 KB Output is correct
7 Correct 49 ms 8276 KB Output is correct
8 Correct 43 ms 8276 KB Output is correct
9 Correct 39 ms 8276 KB Output is correct
10 Correct 42 ms 8276 KB Output is correct
11 Correct 40 ms 8292 KB Output is correct
12 Correct 44 ms 8340 KB Output is correct
13 Correct 46 ms 8276 KB Output is correct
14 Correct 44 ms 8260 KB Output is correct
15 Correct 45 ms 8276 KB Output is correct
16 Correct 44 ms 8276 KB Output is correct
17 Correct 42 ms 8284 KB Output is correct
18 Correct 39 ms 8276 KB Output is correct
19 Correct 127 ms 8584 KB Output is correct
20 Correct 141 ms 8696 KB Output is correct
21 Correct 140 ms 8644 KB Output is correct
22 Correct 137 ms 8660 KB Output is correct
23 Correct 136 ms 8772 KB Output is correct
24 Correct 138 ms 8660 KB Output is correct
25 Correct 130 ms 8660 KB Output is correct
26 Correct 132 ms 8660 KB Output is correct
27 Correct 136 ms 8764 KB Output is correct
28 Correct 142 ms 8768 KB Output is correct
29 Correct 53 ms 9296 KB Output is correct
30 Correct 484 ms 10136 KB Output is correct
31 Correct 970 ms 10956 KB Output is correct
32 Correct 960 ms 11000 KB Output is correct
33 Correct 967 ms 10964 KB Output is correct
34 Correct 947 ms 10996 KB Output is correct
35 Correct 919 ms 10956 KB Output is correct
36 Correct 966 ms 10960 KB Output is correct
37 Correct 917 ms 10956 KB Output is correct
38 Correct 760 ms 10956 KB Output is correct
39 Correct 766 ms 10964 KB Output is correct
40 Correct 762 ms 10996 KB Output is correct
41 Correct 747 ms 11004 KB Output is correct
42 Correct 759 ms 11008 KB Output is correct
43 Correct 734 ms 10984 KB Output is correct
44 Correct 734 ms 11012 KB Output is correct
45 Correct 699 ms 10964 KB Output is correct
46 Correct 723 ms 10956 KB Output is correct
47 Correct 3724 ms 17108 KB Output is correct
48 Execution timed out 9050 ms 34176 KB Time limit exceeded
49 Halted 0 ms 0 KB -