oj.uz

Submission #650434

# Submission time Handle Problem Language Result Execution time Memory
650434 2022-10-13T18:18:55 Z ymm Bubble Sort 2 (JOI18_bubblesort2) C++17
60 / 100
 9000 ms 29540 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+1024;
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];
	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 27 ms 8264 KB Output is correct
3 Correct 44 ms 8296 KB Output is correct
4 Correct 46 ms 8292 KB Output is correct
5 Correct 44 ms 8300 KB Output is correct
6 Correct 47 ms 8328 KB Output is correct
7 Correct 43 ms 8276 KB Output is correct
8 Correct 43 ms 8276 KB Output is correct
9 Correct 43 ms 8276 KB Output is correct
10 Correct 43 ms 8404 KB Output is correct
11 Correct 50 ms 8276 KB Output is correct
12 Correct 43 ms 8276 KB Output is correct
13 Correct 48 ms 8296 KB Output is correct
14 Correct 46 ms 8276 KB Output is correct
15 Correct 47 ms 8304 KB Output is correct
16 Correct 45 ms 8300 KB Output is correct
17 Correct 42 ms 8320 KB Output is correct
18 Correct 46 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 27 ms 8264 KB Output is correct
3 Correct 44 ms 8296 KB Output is correct
4 Correct 46 ms 8292 KB Output is correct
5 Correct 44 ms 8300 KB Output is correct
6 Correct 47 ms 8328 KB Output is correct
7 Correct 43 ms 8276 KB Output is correct
8 Correct 43 ms 8276 KB Output is correct
9 Correct 43 ms 8276 KB Output is correct
10 Correct 43 ms 8404 KB Output is correct
11 Correct 50 ms 8276 KB Output is correct
12 Correct 43 ms 8276 KB Output is correct
13 Correct 48 ms 8296 KB Output is correct
14 Correct 46 ms 8276 KB Output is correct
15 Correct 47 ms 8304 KB Output is correct
16 Correct 45 ms 8300 KB Output is correct
17 Correct 42 ms 8320 KB Output is correct
18 Correct 46 ms 8276 KB Output is correct
19 Correct 131 ms 8484 KB Output is correct
20 Correct 151 ms 8532 KB Output is correct
21 Correct 149 ms 8512 KB Output is correct
22 Correct 151 ms 8516 KB Output is correct
23 Correct 148 ms 8532 KB Output is correct
24 Correct 151 ms 8532 KB Output is correct
25 Correct 149 ms 8532 KB Output is correct
26 Correct 152 ms 8512 KB Output is correct
27 Correct 145 ms 8532 KB Output is correct
28 Correct 145 ms 8484 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 55 ms 8920 KB Output is correct
2 Correct 471 ms 9508 KB Output is correct
3 Correct 998 ms 10204 KB Output is correct
4 Correct 990 ms 10128 KB Output is correct
5 Correct 963 ms 10148 KB Output is correct
6 Correct 975 ms 10120 KB Output is correct
7 Correct 927 ms 10164 KB Output is correct
8 Correct 941 ms 10124 KB Output is correct
9 Correct 942 ms 10112 KB Output is correct
10 Correct 849 ms 10108 KB Output is correct
11 Correct 840 ms 10196 KB Output is correct
12 Correct 845 ms 10188 KB Output is correct
13 Correct 835 ms 10120 KB Output is correct
14 Correct 831 ms 10120 KB Output is correct
15 Correct 835 ms 10188 KB Output is correct
16 Correct 822 ms 10196 KB Output is correct
17 Correct 823 ms 10116 KB Output is correct
18 Correct 828 ms 10188 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 27 ms 8264 KB Output is correct
3 Correct 44 ms 8296 KB Output is correct
4 Correct 46 ms 8292 KB Output is correct
5 Correct 44 ms 8300 KB Output is correct
6 Correct 47 ms 8328 KB Output is correct
7 Correct 43 ms 8276 KB Output is correct
8 Correct 43 ms 8276 KB Output is correct
9 Correct 43 ms 8276 KB Output is correct
10 Correct 43 ms 8404 KB Output is correct
11 Correct 50 ms 8276 KB Output is correct
12 Correct 43 ms 8276 KB Output is correct
13 Correct 48 ms 8296 KB Output is correct
14 Correct 46 ms 8276 KB Output is correct
15 Correct 47 ms 8304 KB Output is correct
16 Correct 45 ms 8300 KB Output is correct
17 Correct 42 ms 8320 KB Output is correct
18 Correct 46 ms 8276 KB Output is correct
19 Correct 131 ms 8484 KB Output is correct
20 Correct 151 ms 8532 KB Output is correct
21 Correct 149 ms 8512 KB Output is correct
22 Correct 151 ms 8516 KB Output is correct
23 Correct 148 ms 8532 KB Output is correct
24 Correct 151 ms 8532 KB Output is correct
25 Correct 149 ms 8532 KB Output is correct
26 Correct 152 ms 8512 KB Output is correct
27 Correct 145 ms 8532 KB Output is correct
28 Correct 145 ms 8484 KB Output is correct
29 Correct 55 ms 8920 KB Output is correct
30 Correct 471 ms 9508 KB Output is correct
31 Correct 998 ms 10204 KB Output is correct
32 Correct 990 ms 10128 KB Output is correct
33 Correct 963 ms 10148 KB Output is correct
34 Correct 975 ms 10120 KB Output is correct
35 Correct 927 ms 10164 KB Output is correct
36 Correct 941 ms 10124 KB Output is correct
37 Correct 942 ms 10112 KB Output is correct
38 Correct 849 ms 10108 KB Output is correct
39 Correct 840 ms 10196 KB Output is correct
40 Correct 845 ms 10188 KB Output is correct
41 Correct 835 ms 10120 KB Output is correct
42 Correct 831 ms 10120 KB Output is correct
43 Correct 835 ms 10188 KB Output is correct
44 Correct 822 ms 10196 KB Output is correct
45 Correct 823 ms 10116 KB Output is correct
46 Correct 828 ms 10188 KB Output is correct
47 Correct 3551 ms 15388 KB Output is correct
48 Execution timed out 9014 ms 29540 KB Time limit exceeded
49 Halted 0 ms 0 KB -