oj.uz

Submission #144760

# Submission time Handle Problem Language Result Execution time Memory
144760 2019-08-17T16:02:17 Z nvmdava Rectangles (IOI19_rect) C++17
72 / 100
 5000 ms 930564 KB 
#include "rect.h"
#pragma GCC optimize("-Ofast")
#include <bits/stdc++.h>
using namespace std;
#define ff first
#define ss second
#define N 2501

map<int, int> cnt[N][N][2];
int arr[N][N], bit[N], temp[N], p[N], lc[N], rc[N], n, m;
vector<int> v;
vector<int> t;
inline void buildtree(int sz){

	v = {0};
	for(int i = 1; i <= sz; i++){
		t.clear();
		while(temp[v.back()] < temp[i]){
			t.push_back(v.back());
			v.pop_back();
		}
		v.push_back(i);
		for(int j = t.size() - 1; j > 0; j--){
			p[t[j - 1]] = t[j];
		}
		if(!t.empty()) p[t.back()] = i;
	}
	for(int i = v.size() - 1; i > 0; i--)
		p[v[i]] = v[i - 1];
	for(int i = 1; i <= sz; i++){
		if(p[i] > i){
			lc[p[i]] = i;
		} else {
			rc[p[i]] = i;
		}
	}

}

void travtree(int i1, int i2, int v, int l, int r){
	if(l != 0 && r != (i1 == 1 ? n + 1 : m + 1) && r - l > 1 && temp[l] != temp[v] && temp[r] != temp[v]){
		if(i1 == 0)
			cnt[i2][r - 1][0][r - l - 1]++;
		else 
			cnt[r - 1][i2][1][r - l - 1]++;
	}
	if(lc[v] != 0)
		travtree(i1, i2, lc[v], l, v);
	if(rc[v] != 0)
		travtree(i1, i2, rc[v], v, r);
}

inline void build(){
	for(int j = 1; j <= m; j++){
		memset(lc, 0, sizeof lc);
		memset(rc, 0, sizeof rc);

		for(int i = 0; i <= n; i++)
			temp[i] = arr[i][j];
		
		buildtree(n);
		travtree(1, j, 0, 0, n + 1);
	}
}

inline void update(int x, int v){
	for(int i = x; i < N; i += i & -i)
		bit[i] += v;
}

inline int query(int x){
	int res = 0;
	for(int i = x; i > 0; i -= i & -i)
		res += bit[i];
	return res;
}
vector<pair<int, int> > sad;
int i1;
long long count_rectangles(vector<vector<int> > a){
	n = a.size();
	m = a[0].size();
	
	for(int i = 0; i < N; i++){
		arr[0][i] = 0x3f3f3f3f;
		arr[i][0] = 0x3f3f3f3f;
	}

	for(int i = 0; i < n; i++)
		for(int j = 0; j < m; j++)
			arr[i + 1][j + 1] = a[i][j];
	a.clear();
	build();
	int res = 0;
	for(int i = 1; i <= n; i++){
		memset(lc, 0, sizeof lc);
		memset(rc, 0, sizeof rc);
		for(int j = 0; j <= m; j++)
			temp[j] = arr[i][j];
		buildtree(m);
		travtree(0, i, 0, 0, m + 1);
		for(int j = 1; j <= m; j++){
			sad.clear();
			for(auto& x : cnt[i][j][0]){
				auto it = cnt[i - 1][j][0].find(x.ff);
				if(it != cnt[i - 1][j][0].end())
					x.ss = 1 + it -> ss;
				sad.push_back({x.ss, x.ff});
				update(x.ff, 1);
			}
			sort(sad.rbegin(), sad.rend());
			i1 = sad.size() - 1;
			for(auto& x : cnt[i][j][1]){
				auto it = cnt[i][j - 1][1].find(x.ff);
				if(it != cnt[i][j - 1][1].end())
					x.ss = 1 + it -> ss;

				while(i1 >= 0 && sad[i1].ff < x.ff)
					update(sad[i1--].ss, -1);

				res += query(x.ss);
			}
			while(i1 >= 0)
				update(sad[i1--].ss, -1);
			cnt[i - 1][j][0].clear();
			cnt[i - 1][j][1].clear();
		}
	}
	return res;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 549 ms 597980 KB Output is correct
2 Correct 540 ms 598064 KB Output is correct
3 Correct 553 ms 598016 KB Output is correct
4 Correct 548 ms 598068 KB Output is correct
5 Correct 551 ms 598008 KB Output is correct
6 Correct 652 ms 597920 KB Output is correct
7 Correct 550 ms 598040 KB Output is correct
8 Correct 548 ms 597980 KB Output is correct
9 Correct 547 ms 598068 KB Output is correct
10 Correct 549 ms 597988 KB Output is correct
11 Correct 545 ms 598172 KB Output is correct
12 Correct 546 ms 598008 KB Output is correct
13 Correct 550 ms 598124 KB Output is correct
14 Correct 550 ms 597980 KB Output is correct
15 Correct 546 ms 598008 KB Output is correct
16 Correct 547 ms 598136 KB Output is correct
17 Correct 576 ms 598020 KB Output is correct
18 Correct 549 ms 598004 KB Output is correct
19 Correct 545 ms 598032 KB Output is correct
20 Correct 550 ms 597968 KB Output is correct
21 Correct 583 ms 598076 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 549 ms 597980 KB Output is correct
2 Correct 540 ms 598064 KB Output is correct
3 Correct 553 ms 598016 KB Output is correct
4 Correct 548 ms 598068 KB Output is correct
5 Correct 551 ms 598008 KB Output is correct
6 Correct 652 ms 597920 KB Output is correct
7 Correct 550 ms 598040 KB Output is correct
8 Correct 548 ms 597980 KB Output is correct
9 Correct 547 ms 598068 KB Output is correct
10 Correct 549 ms 597988 KB Output is correct
11 Correct 545 ms 598172 KB Output is correct
12 Correct 546 ms 598008 KB Output is correct
13 Correct 550 ms 598124 KB Output is correct
14 Correct 550 ms 597980 KB Output is correct
15 Correct 546 ms 598008 KB Output is correct
16 Correct 547 ms 598136 KB Output is correct
17 Correct 552 ms 598268 KB Output is correct
18 Correct 549 ms 598392 KB Output is correct
19 Correct 551 ms 598356 KB Output is correct
20 Correct 594 ms 598212 KB Output is correct
21 Correct 554 ms 598392 KB Output is correct
22 Correct 548 ms 598432 KB Output is correct
23 Correct 548 ms 598392 KB Output is correct
24 Correct 562 ms 598232 KB Output is correct
25 Correct 576 ms 598020 KB Output is correct
26 Correct 549 ms 598004 KB Output is correct
27 Correct 545 ms 598032 KB Output is correct
28 Correct 550 ms 597968 KB Output is correct
29 Correct 583 ms 598076 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 549 ms 597980 KB Output is correct
2 Correct 540 ms 598064 KB Output is correct
3 Correct 553 ms 598016 KB Output is correct
4 Correct 548 ms 598068 KB Output is correct
5 Correct 551 ms 598008 KB Output is correct
6 Correct 652 ms 597920 KB Output is correct
7 Correct 550 ms 598040 KB Output is correct
8 Correct 548 ms 597980 KB Output is correct
9 Correct 547 ms 598068 KB Output is correct
10 Correct 549 ms 597988 KB Output is correct
11 Correct 545 ms 598172 KB Output is correct
12 Correct 546 ms 598008 KB Output is correct
13 Correct 550 ms 598124 KB Output is correct
14 Correct 550 ms 597980 KB Output is correct
15 Correct 546 ms 598008 KB Output is correct
16 Correct 547 ms 598136 KB Output is correct
17 Correct 552 ms 598268 KB Output is correct
18 Correct 549 ms 598392 KB Output is correct
19 Correct 551 ms 598356 KB Output is correct
20 Correct 594 ms 598212 KB Output is correct
21 Correct 554 ms 598392 KB Output is correct
22 Correct 548 ms 598432 KB Output is correct
23 Correct 548 ms 598392 KB Output is correct
24 Correct 562 ms 598232 KB Output is correct
25 Correct 568 ms 600228 KB Output is correct
26 Correct 572 ms 600192 KB Output is correct
27 Correct 565 ms 600176 KB Output is correct
28 Correct 554 ms 599148 KB Output is correct
29 Correct 576 ms 600112 KB Output is correct
30 Correct 567 ms 600140 KB Output is correct
31 Correct 570 ms 600020 KB Output is correct
32 Correct 564 ms 600096 KB Output is correct
33 Correct 576 ms 598020 KB Output is correct
34 Correct 549 ms 598004 KB Output is correct
35 Correct 545 ms 598032 KB Output is correct
36 Correct 550 ms 597968 KB Output is correct
37 Correct 583 ms 598076 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 549 ms 597980 KB Output is correct
2 Correct 540 ms 598064 KB Output is correct
3 Correct 553 ms 598016 KB Output is correct
4 Correct 548 ms 598068 KB Output is correct
5 Correct 551 ms 598008 KB Output is correct
6 Correct 652 ms 597920 KB Output is correct
7 Correct 550 ms 598040 KB Output is correct
8 Correct 548 ms 597980 KB Output is correct
9 Correct 547 ms 598068 KB Output is correct
10 Correct 549 ms 597988 KB Output is correct
11 Correct 545 ms 598172 KB Output is correct
12 Correct 546 ms 598008 KB Output is correct
13 Correct 550 ms 598124 KB Output is correct
14 Correct 550 ms 597980 KB Output is correct
15 Correct 546 ms 598008 KB Output is correct
16 Correct 547 ms 598136 KB Output is correct
17 Correct 552 ms 598268 KB Output is correct
18 Correct 549 ms 598392 KB Output is correct
19 Correct 551 ms 598356 KB Output is correct
20 Correct 594 ms 598212 KB Output is correct
21 Correct 554 ms 598392 KB Output is correct
22 Correct 548 ms 598432 KB Output is correct
23 Correct 548 ms 598392 KB Output is correct
24 Correct 562 ms 598232 KB Output is correct
25 Correct 568 ms 600228 KB Output is correct
26 Correct 572 ms 600192 KB Output is correct
27 Correct 565 ms 600176 KB Output is correct
28 Correct 554 ms 599148 KB Output is correct
29 Correct 576 ms 600112 KB Output is correct
30 Correct 567 ms 600140 KB Output is correct
31 Correct 570 ms 600020 KB Output is correct
32 Correct 564 ms 600096 KB Output is correct
33 Correct 664 ms 613408 KB Output is correct
34 Correct 657 ms 613444 KB Output is correct
35 Correct 696 ms 613616 KB Output is correct
36 Correct 731 ms 613452 KB Output is correct
37 Correct 816 ms 624868 KB Output is correct
38 Correct 815 ms 624852 KB Output is correct
39 Correct 819 ms 624904 KB Output is correct
40 Correct 800 ms 623112 KB Output is correct
41 Correct 656 ms 607632 KB Output is correct
42 Correct 686 ms 610764 KB Output is correct
43 Correct 839 ms 624464 KB Output is correct
44 Correct 854 ms 625848 KB Output is correct
45 Correct 685 ms 612632 KB Output is correct
46 Correct 690 ms 611272 KB Output is correct
47 Correct 840 ms 622708 KB Output is correct
48 Correct 826 ms 623044 KB Output is correct
49 Correct 576 ms 598020 KB Output is correct
50 Correct 549 ms 598004 KB Output is correct
51 Correct 545 ms 598032 KB Output is correct
52 Correct 550 ms 597968 KB Output is correct
53 Correct 583 ms 598076 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 577 ms 598648 KB Output is correct
2 Correct 551 ms 598492 KB Output is correct
3 Correct 548 ms 598284 KB Output is correct
4 Correct 548 ms 597988 KB Output is correct
5 Correct 558 ms 598280 KB Output is correct
6 Correct 554 ms 598416 KB Output is correct
7 Correct 557 ms 598364 KB Output is correct
8 Correct 556 ms 598264 KB Output is correct
9 Correct 552 ms 598348 KB Output is correct
10 Correct 620 ms 598136 KB Output is correct
11 Correct 562 ms 598264 KB Output is correct

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 576 ms 597972 KB Output is correct
2 Correct 1299 ms 650304 KB Output is correct
3 Correct 2282 ms 709976 KB Output is correct
4 Correct 2252 ms 710324 KB Output is correct
5 Correct 2265 ms 710524 KB Output is correct
6 Correct 799 ms 629356 KB Output is correct
7 Correct 991 ms 658504 KB Output is correct
8 Correct 1061 ms 661852 KB Output is correct
9 Correct 576 ms 598020 KB Output is correct
10 Correct 549 ms 598004 KB Output is correct
11 Correct 545 ms 598032 KB Output is correct
12 Correct 550 ms 597968 KB Output is correct
13 Correct 583 ms 598076 KB Output is correct

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 549 ms 597980 KB Output is correct
2 Correct 540 ms 598064 KB Output is correct
3 Correct 553 ms 598016 KB Output is correct
4 Correct 548 ms 598068 KB Output is correct
5 Correct 551 ms 598008 KB Output is correct
6 Correct 652 ms 597920 KB Output is correct
7 Correct 550 ms 598040 KB Output is correct
8 Correct 548 ms 597980 KB Output is correct
9 Correct 547 ms 598068 KB Output is correct
10 Correct 549 ms 597988 KB Output is correct
11 Correct 545 ms 598172 KB Output is correct
12 Correct 546 ms 598008 KB Output is correct
13 Correct 550 ms 598124 KB Output is correct
14 Correct 550 ms 597980 KB Output is correct
15 Correct 546 ms 598008 KB Output is correct
16 Correct 547 ms 598136 KB Output is correct
17 Correct 552 ms 598268 KB Output is correct
18 Correct 549 ms 598392 KB Output is correct
19 Correct 551 ms 598356 KB Output is correct
20 Correct 594 ms 598212 KB Output is correct
21 Correct 554 ms 598392 KB Output is correct
22 Correct 548 ms 598432 KB Output is correct
23 Correct 548 ms 598392 KB Output is correct
24 Correct 562 ms 598232 KB Output is correct
25 Correct 568 ms 600228 KB Output is correct
26 Correct 572 ms 600192 KB Output is correct
27 Correct 565 ms 600176 KB Output is correct
28 Correct 554 ms 599148 KB Output is correct
29 Correct 576 ms 600112 KB Output is correct
30 Correct 567 ms 600140 KB Output is correct
31 Correct 570 ms 600020 KB Output is correct
32 Correct 564 ms 600096 KB Output is correct
33 Correct 664 ms 613408 KB Output is correct
34 Correct 657 ms 613444 KB Output is correct
35 Correct 696 ms 613616 KB Output is correct
36 Correct 731 ms 613452 KB Output is correct
37 Correct 816 ms 624868 KB Output is correct
38 Correct 815 ms 624852 KB Output is correct
39 Correct 819 ms 624904 KB Output is correct
40 Correct 800 ms 623112 KB Output is correct
41 Correct 656 ms 607632 KB Output is correct
42 Correct 686 ms 610764 KB Output is correct
43 Correct 839 ms 624464 KB Output is correct
44 Correct 854 ms 625848 KB Output is correct
45 Correct 685 ms 612632 KB Output is correct
46 Correct 690 ms 611272 KB Output is correct
47 Correct 840 ms 622708 KB Output is correct
48 Correct 826 ms 623044 KB Output is correct
49 Correct 577 ms 598648 KB Output is correct
50 Correct 551 ms 598492 KB Output is correct
51 Correct 548 ms 598284 KB Output is correct
52 Correct 548 ms 597988 KB Output is correct
53 Correct 558 ms 598280 KB Output is correct
54 Correct 554 ms 598416 KB Output is correct
55 Correct 557 ms 598364 KB Output is correct
56 Correct 556 ms 598264 KB Output is correct
57 Correct 552 ms 598348 KB Output is correct
58 Correct 620 ms 598136 KB Output is correct
59 Correct 562 ms 598264 KB Output is correct
60 Correct 576 ms 597972 KB Output is correct
61 Correct 1299 ms 650304 KB Output is correct
62 Correct 2282 ms 709976 KB Output is correct
63 Correct 2252 ms 710324 KB Output is correct
64 Correct 2265 ms 710524 KB Output is correct
65 Correct 799 ms 629356 KB Output is correct
66 Correct 991 ms 658504 KB Output is correct
67 Correct 1061 ms 661852 KB Output is correct
68 Correct 2233 ms 783860 KB Output is correct
69 Correct 2187 ms 783916 KB Output is correct
70 Correct 3080 ms 784176 KB Output is correct
71 Correct 2594 ms 784124 KB Output is correct
72 Correct 4272 ms 930564 KB Output is correct
73 Correct 3239 ms 793692 KB Output is correct
74 Correct 3305 ms 812248 KB Output is correct
75 Execution timed out 5004 ms 924876 KB Time limit exceeded
76 Halted 0 ms 0 KB -