oj.uz

Submission #650408

# Submission time Handle Problem Language Result Execution time Memory
650408 2022-10-13T16:54:38 Z ymm Bubble Sort 2 (JOI18_bubblesort2) C++17
60 / 100
 9000 ms 34252 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-all-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;
	for (;;) {
		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 (l == 0) break;
		if (l > 1) UP(l-1);
		if (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 19 ms 8276 KB Output is correct
2 Correct 25 ms 8252 KB Output is correct
3 Correct 39 ms 8288 KB Output is correct
4 Correct 42 ms 8288 KB Output is correct
5 Correct 42 ms 8284 KB Output is correct
6 Correct 41 ms 8276 KB Output is correct
7 Correct 41 ms 8276 KB Output is correct
8 Correct 39 ms 8292 KB Output is correct
9 Correct 39 ms 8276 KB Output is correct
10 Correct 44 ms 8276 KB Output is correct
11 Correct 42 ms 8276 KB Output is correct
12 Correct 41 ms 8276 KB Output is correct
13 Correct 41 ms 8384 KB Output is correct
14 Correct 39 ms 8288 KB Output is correct
15 Correct 41 ms 8280 KB Output is correct
16 Correct 40 ms 8276 KB Output is correct
17 Correct 39 ms 8276 KB Output is correct
18 Correct 41 ms 8372 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 25 ms 8252 KB Output is correct
3 Correct 39 ms 8288 KB Output is correct
4 Correct 42 ms 8288 KB Output is correct
5 Correct 42 ms 8284 KB Output is correct
6 Correct 41 ms 8276 KB Output is correct
7 Correct 41 ms 8276 KB Output is correct
8 Correct 39 ms 8292 KB Output is correct
9 Correct 39 ms 8276 KB Output is correct
10 Correct 44 ms 8276 KB Output is correct
11 Correct 42 ms 8276 KB Output is correct
12 Correct 41 ms 8276 KB Output is correct
13 Correct 41 ms 8384 KB Output is correct
14 Correct 39 ms 8288 KB Output is correct
15 Correct 41 ms 8280 KB Output is correct
16 Correct 40 ms 8276 KB Output is correct
17 Correct 39 ms 8276 KB Output is correct
18 Correct 41 ms 8372 KB Output is correct
19 Correct 124 ms 8664 KB Output is correct
20 Correct 133 ms 8768 KB Output is correct
21 Correct 133 ms 8660 KB Output is correct
22 Correct 129 ms 8660 KB Output is correct
23 Correct 129 ms 8660 KB Output is correct
24 Correct 129 ms 8760 KB Output is correct
25 Correct 130 ms 8764 KB Output is correct
26 Correct 131 ms 8768 KB Output is correct
27 Correct 131 ms 8628 KB Output is correct
28 Correct 134 ms 8660 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 9292 KB Output is correct
2 Correct 435 ms 10184 KB Output is correct
3 Correct 897 ms 10964 KB Output is correct
4 Correct 897 ms 10924 KB Output is correct
5 Correct 886 ms 10996 KB Output is correct
6 Correct 879 ms 10964 KB Output is correct
7 Correct 821 ms 10964 KB Output is correct
8 Correct 835 ms 10964 KB Output is correct
9 Correct 893 ms 10964 KB Output is correct
10 Correct 737 ms 11012 KB Output is correct
11 Correct 736 ms 10964 KB Output is correct
12 Correct 747 ms 10964 KB Output is correct
13 Correct 736 ms 10964 KB Output is correct
14 Correct 715 ms 10940 KB Output is correct
15 Correct 701 ms 10956 KB Output is correct
16 Correct 700 ms 11084 KB Output is correct
17 Correct 687 ms 10956 KB Output is correct
18 Correct 702 ms 10992 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 25 ms 8252 KB Output is correct
3 Correct 39 ms 8288 KB Output is correct
4 Correct 42 ms 8288 KB Output is correct
5 Correct 42 ms 8284 KB Output is correct
6 Correct 41 ms 8276 KB Output is correct
7 Correct 41 ms 8276 KB Output is correct
8 Correct 39 ms 8292 KB Output is correct
9 Correct 39 ms 8276 KB Output is correct
10 Correct 44 ms 8276 KB Output is correct
11 Correct 42 ms 8276 KB Output is correct
12 Correct 41 ms 8276 KB Output is correct
13 Correct 41 ms 8384 KB Output is correct
14 Correct 39 ms 8288 KB Output is correct
15 Correct 41 ms 8280 KB Output is correct
16 Correct 40 ms 8276 KB Output is correct
17 Correct 39 ms 8276 KB Output is correct
18 Correct 41 ms 8372 KB Output is correct
19 Correct 124 ms 8664 KB Output is correct
20 Correct 133 ms 8768 KB Output is correct
21 Correct 133 ms 8660 KB Output is correct
22 Correct 129 ms 8660 KB Output is correct
23 Correct 129 ms 8660 KB Output is correct
24 Correct 129 ms 8760 KB Output is correct
25 Correct 130 ms 8764 KB Output is correct
26 Correct 131 ms 8768 KB Output is correct
27 Correct 131 ms 8628 KB Output is correct
28 Correct 134 ms 8660 KB Output is correct
29 Correct 54 ms 9292 KB Output is correct
30 Correct 435 ms 10184 KB Output is correct
31 Correct 897 ms 10964 KB Output is correct
32 Correct 897 ms 10924 KB Output is correct
33 Correct 886 ms 10996 KB Output is correct
34 Correct 879 ms 10964 KB Output is correct
35 Correct 821 ms 10964 KB Output is correct
36 Correct 835 ms 10964 KB Output is correct
37 Correct 893 ms 10964 KB Output is correct
38 Correct 737 ms 11012 KB Output is correct
39 Correct 736 ms 10964 KB Output is correct
40 Correct 747 ms 10964 KB Output is correct
41 Correct 736 ms 10964 KB Output is correct
42 Correct 715 ms 10940 KB Output is correct
43 Correct 701 ms 10956 KB Output is correct
44 Correct 700 ms 11084 KB Output is correct
45 Correct 687 ms 10956 KB Output is correct
46 Correct 702 ms 10992 KB Output is correct
47 Correct 3817 ms 17108 KB Output is correct
48 Execution timed out 9020 ms 34252 KB Time limit exceeded
49 Halted 0 ms 0 KB -