oj.uz

Submission #928812

# Submission time Handle Problem Language Result Execution time Memory
928812 2024-02-17T06:07:45 Z knon0501 Rectangles (IOI19_rect) C++17
59 / 100
 1432 ms 1048576 KB 
#include "rect.h"
#include <bits/stdc++.h>
using namespace std;

vector<int> b[2505][2505];
vector<int> c[2505][2505];
vector<pair<int,int>> d[2505][2505];
vector<pair<int,int>> e[2505][2505];

int lef[2505][2505];
int rig[2505][2505];
int up[2505][2505];
int down[2505][2505];
vector<vector<int>> v;

long long count_rectangles(std::vector<std::vector<int> > a) {



	int n = a.size();
	int m = a[0].size();


	
	
	
	for(int i=1 ; i<n-1 ; i++){
		stack<int> S;

		for(int j=0 ; j<m ; j++){
			bool flag = true;
			while(!S.empty() && a[i][S.top()] <=  a[i][j]){
				int x = S.top(); 
				
				
				if(x +1 <j && flag)
					b[x+1][j-1].push_back(i);
				if(a[i][S.top()]==a[i][j])flag=false;
				S.pop();
				
			}
			if(!S.empty() ){
				int x = S.top();
				lef[i][j] = x;
				if(x+1<j && flag)
					b[x+1][j-1].push_back(i);
			}
			else{
				lef[i][j]=-1;
			}
			S.push(j);
		}
		while(!S.empty())S.pop();
		for(int j=m-1; j>=0 ; j--){
		
			while(!S.empty() && a[i][S.top()] <=  a[i][j]){
				
				S.pop();
				
			}
			if(!S.empty() ){
				int x = S.top();
				rig[i][j] = x;
				
			}
			else{
				rig[i][j]=-1;
			}
			S.push(j);
		}
	}

	for(int i=1 ; i<m-1 ; i++){
		stack<int> S;

		for(int j=0 ; j<n ; j++){
			bool flag = true;
			while(!S.empty() && a[S.top()][i] <=  a[j][i]){
				int x = S.top(); 
				
				
				if(x +1 <j && flag)
					c[x+1][j-1].push_back(i);
				if(a[S.top()][i]==a[j][i])flag=false;
				S.pop();
				
			}
			
			if(!S.empty() ){
				
				int x = S.top();
		
				up[j][i]=x;
				if(x+1<j && flag)
					c[x+1][j-1].push_back(i);
			}
			else{
				up[j][i]=-1;
			}
			S.push(j);
		}
		while(!S.empty())S.pop();
		for(int j=n-1 ; j>=0 ; j--){
			while(!S.empty() && a[S.top()][i] <=  a[j][i]){
			
				S.pop();
				
			}
			if(!S.empty() ){
				int x = S.top();
				down[j][i]=x;	
			}
			else{
				down[j][i]=-1;
			}
			S.push(j);
		}
	}
	long long ans = 0;
	for(int i=1 ; i<m ; i++){
		for(int j=i ; j<m ; j++){
			reverse(b[i][j].begin(),b[i][j].end());
			int prv = -1;
			int y;
			for(auto x: b[i][j]){
				if(x != prv-1){
					if(prv>=0)
						d[i][j].push_back({prv,y});
					y=x;
				}
				prv=x;
			}
			if(prv>=0){

				d[i][j].push_back({prv,y});
			}
			sort(d[i][j].begin(),d[i][j].end());
			std::vector<int>().swap(b[i][j]);

		}
	}
	for(int i=1 ; i<n  ; i++){
		for(int j=i ; j<n ; j++){
			reverse(c[i][j].begin(),c[i][j].end());
			int prv = -1;
			int y;
			for(auto x: c[i][j]){
				if(x != prv-1){
					if(prv>=0)
						e[i][j].push_back({prv,y});
					y=x;
				}
				prv=x;
			}
			if(prv>=0){
			
				e[i][j].push_back({prv,y});
			}
			sort(e[i][j].begin(),e[i][j].end());
			std::vector<int>().swap(c[i][j]);

		}
	}
	
	for(int i = 1 ; i<n-1 ; i++){
		for(int j=1 ; j<m-1 ; j++){
			int x = lef[i][j];
			int y = rig[i][j];
			int z = up[i][j];
			int w = down[i][j];
			v.push_back({x,y,z,w});
			
		}
	}
	sort(v.begin(),v.end());
	v.erase(unique(v.begin(),v.end()),v.end());
	for(auto vv: v){
		int x=vv[0];
		int y = vv[1];
		int z =vv[2];
		int  w = vv[3];
		if(x==-1 ||y==-1 || z==-1 || w==-1)continue;
			
			auto k = upper_bound(d[x+1][y-1].begin(),d[x+1][y-1].end(),make_pair(z+1,10000000));
			if(k== d[x+1][y-1].begin())continue;
		
			if((--k)->second <w-1)continue;
			
			//cout<<z+1<<" "<<w-1<<" "<<e[z+1][w-1].size()<<" "<<c[z+1][w-1].size()<<endl;
			auto t = upper_bound(e[z+1][w-1].begin(),e[z+1][w-1].end(),make_pair(x+1,10000000));
			
			if(t== e[z+1][w-1].begin())continue;
			
			if((--t)->second <y-1)continue;
			ans++;
	}
	return ans;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 171 ms 597528 KB Output is correct
2 Correct 135 ms 601792 KB Output is correct
3 Correct 131 ms 601680 KB Output is correct
4 Correct 129 ms 601756 KB Output is correct
5 Correct 131 ms 601684 KB Output is correct
6 Correct 130 ms 601660 KB Output is correct
7 Correct 129 ms 601756 KB Output is correct
8 Correct 135 ms 597584 KB Output is correct
9 Correct 131 ms 601660 KB Output is correct
10 Correct 140 ms 601680 KB Output is correct
11 Correct 131 ms 601748 KB Output is correct
12 Correct 135 ms 601644 KB Output is correct
13 Correct 128 ms 591480 KB Output is correct
14 Correct 133 ms 595412 KB Output is correct
15 Correct 129 ms 597636 KB Output is correct
16 Correct 129 ms 597416 KB Output is correct
17 Correct 131 ms 591284 KB Output is correct
18 Correct 133 ms 593412 KB Output is correct
19 Correct 130 ms 601708 KB Output is correct
20 Correct 134 ms 601840 KB Output is correct
21 Correct 129 ms 595540 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 171 ms 597528 KB Output is correct
2 Correct 135 ms 601792 KB Output is correct
3 Correct 131 ms 601680 KB Output is correct
4 Correct 129 ms 601756 KB Output is correct
5 Correct 131 ms 601684 KB Output is correct
6 Correct 130 ms 601660 KB Output is correct
7 Correct 129 ms 601756 KB Output is correct
8 Correct 135 ms 597584 KB Output is correct
9 Correct 131 ms 601660 KB Output is correct
10 Correct 140 ms 601680 KB Output is correct
11 Correct 131 ms 601748 KB Output is correct
12 Correct 135 ms 601644 KB Output is correct
13 Correct 128 ms 591480 KB Output is correct
14 Correct 133 ms 595412 KB Output is correct
15 Correct 129 ms 597636 KB Output is correct
16 Correct 129 ms 597416 KB Output is correct
17 Correct 131 ms 591284 KB Output is correct
18 Correct 133 ms 593412 KB Output is correct
19 Correct 130 ms 601708 KB Output is correct
20 Correct 134 ms 601840 KB Output is correct
21 Correct 129 ms 595540 KB Output is correct
22 Correct 135 ms 606496 KB Output is correct
23 Correct 135 ms 606272 KB Output is correct
24 Correct 131 ms 606132 KB Output is correct
25 Correct 134 ms 606264 KB Output is correct
26 Correct 135 ms 606288 KB Output is correct
27 Correct 137 ms 606456 KB Output is correct
28 Correct 143 ms 606292 KB Output is correct
29 Correct 133 ms 606032 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 171 ms 597528 KB Output is correct
2 Correct 135 ms 601792 KB Output is correct
3 Correct 131 ms 601680 KB Output is correct
4 Correct 129 ms 601756 KB Output is correct
5 Correct 131 ms 601684 KB Output is correct
6 Correct 130 ms 601660 KB Output is correct
7 Correct 129 ms 601756 KB Output is correct
8 Correct 135 ms 597584 KB Output is correct
9 Correct 131 ms 601660 KB Output is correct
10 Correct 140 ms 601680 KB Output is correct
11 Correct 131 ms 601748 KB Output is correct
12 Correct 135 ms 601644 KB Output is correct
13 Correct 128 ms 591480 KB Output is correct
14 Correct 133 ms 595412 KB Output is correct
15 Correct 129 ms 597636 KB Output is correct
16 Correct 129 ms 597416 KB Output is correct
17 Correct 135 ms 606496 KB Output is correct
18 Correct 135 ms 606272 KB Output is correct
19 Correct 131 ms 606132 KB Output is correct
20 Correct 134 ms 606264 KB Output is correct
21 Correct 135 ms 606288 KB Output is correct
22 Correct 137 ms 606456 KB Output is correct
23 Correct 143 ms 606292 KB Output is correct
24 Correct 133 ms 606032 KB Output is correct
25 Correct 131 ms 591284 KB Output is correct
26 Correct 133 ms 593412 KB Output is correct
27 Correct 130 ms 601708 KB Output is correct
28 Correct 134 ms 601840 KB Output is correct
29 Correct 129 ms 595540 KB Output is correct
30 Correct 139 ms 608780 KB Output is correct
31 Correct 139 ms 608764 KB Output is correct
32 Correct 141 ms 608780 KB Output is correct
33 Correct 145 ms 609080 KB Output is correct
34 Correct 147 ms 609548 KB Output is correct
35 Correct 148 ms 609648 KB Output is correct
36 Correct 148 ms 609292 KB Output is correct
37 Correct 147 ms 609288 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 171 ms 597528 KB Output is correct
2 Correct 135 ms 601792 KB Output is correct
3 Correct 131 ms 601680 KB Output is correct
4 Correct 129 ms 601756 KB Output is correct
5 Correct 131 ms 601684 KB Output is correct
6 Correct 130 ms 601660 KB Output is correct
7 Correct 129 ms 601756 KB Output is correct
8 Correct 135 ms 597584 KB Output is correct
9 Correct 131 ms 601660 KB Output is correct
10 Correct 140 ms 601680 KB Output is correct
11 Correct 131 ms 601748 KB Output is correct
12 Correct 135 ms 601644 KB Output is correct
13 Correct 128 ms 591480 KB Output is correct
14 Correct 133 ms 595412 KB Output is correct
15 Correct 129 ms 597636 KB Output is correct
16 Correct 129 ms 597416 KB Output is correct
17 Correct 135 ms 606496 KB Output is correct
18 Correct 135 ms 606272 KB Output is correct
19 Correct 131 ms 606132 KB Output is correct
20 Correct 134 ms 606264 KB Output is correct
21 Correct 135 ms 606288 KB Output is correct
22 Correct 137 ms 606456 KB Output is correct
23 Correct 143 ms 606292 KB Output is correct
24 Correct 133 ms 606032 KB Output is correct
25 Correct 139 ms 608780 KB Output is correct
26 Correct 139 ms 608764 KB Output is correct
27 Correct 141 ms 608780 KB Output is correct
28 Correct 145 ms 609080 KB Output is correct
29 Correct 147 ms 609548 KB Output is correct
30 Correct 148 ms 609648 KB Output is correct
31 Correct 148 ms 609292 KB Output is correct
32 Correct 147 ms 609288 KB Output is correct
33 Correct 131 ms 591284 KB Output is correct
34 Correct 133 ms 593412 KB Output is correct
35 Correct 130 ms 601708 KB Output is correct
36 Correct 134 ms 601840 KB Output is correct
37 Correct 129 ms 595540 KB Output is correct
38 Correct 287 ms 676344 KB Output is correct
39 Correct 300 ms 676300 KB Output is correct
40 Correct 295 ms 676344 KB Output is correct
41 Correct 282 ms 676452 KB Output is correct
42 Correct 296 ms 661324 KB Output is correct
43 Correct 284 ms 661208 KB Output is correct
44 Correct 298 ms 661588 KB Output is correct
45 Correct 291 ms 655108 KB Output is correct
46 Correct 317 ms 664060 KB Output is correct
47 Correct 329 ms 664576 KB Output is correct
48 Correct 406 ms 671552 KB Output is correct
49 Correct 411 ms 671668 KB Output is correct
50 Correct 268 ms 650944 KB Output is correct
51 Correct 256 ms 634560 KB Output is correct
52 Correct 376 ms 668760 KB Output is correct
53 Correct 389 ms 669616 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 143 ms 597812 KB Output is correct
2 Correct 137 ms 597840 KB Output is correct
3 Correct 141 ms 597844 KB Output is correct
4 Correct 131 ms 595532 KB Output is correct
5 Correct 139 ms 597844 KB Output is correct
6 Correct 140 ms 597920 KB Output is correct
7 Correct 140 ms 597792 KB Output is correct
8 Correct 141 ms 597840 KB Output is correct
9 Correct 142 ms 597800 KB Output is correct
10 Correct 140 ms 593424 KB Output is correct
11 Correct 142 ms 593496 KB Output is correct

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 131 ms 591284 KB Output is correct
2 Correct 133 ms 593412 KB Output is correct
3 Correct 130 ms 601708 KB Output is correct
4 Correct 134 ms 601840 KB Output is correct
5 Correct 129 ms 595540 KB Output is correct
6 Correct 131 ms 597584 KB Output is correct
7 Correct 1432 ms 850656 KB Output is correct
8 Runtime error 841 ms 1048576 KB Execution killed with signal 9
9 Halted 0 ms 0 KB -

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 171 ms 597528 KB Output is correct
2 Correct 135 ms 601792 KB Output is correct
3 Correct 131 ms 601680 KB Output is correct
4 Correct 129 ms 601756 KB Output is correct
5 Correct 131 ms 601684 KB Output is correct
6 Correct 130 ms 601660 KB Output is correct
7 Correct 129 ms 601756 KB Output is correct
8 Correct 135 ms 597584 KB Output is correct
9 Correct 131 ms 601660 KB Output is correct
10 Correct 140 ms 601680 KB Output is correct
11 Correct 131 ms 601748 KB Output is correct
12 Correct 135 ms 601644 KB Output is correct
13 Correct 128 ms 591480 KB Output is correct
14 Correct 133 ms 595412 KB Output is correct
15 Correct 129 ms 597636 KB Output is correct
16 Correct 129 ms 597416 KB Output is correct
17 Correct 135 ms 606496 KB Output is correct
18 Correct 135 ms 606272 KB Output is correct
19 Correct 131 ms 606132 KB Output is correct
20 Correct 134 ms 606264 KB Output is correct
21 Correct 135 ms 606288 KB Output is correct
22 Correct 137 ms 606456 KB Output is correct
23 Correct 143 ms 606292 KB Output is correct
24 Correct 133 ms 606032 KB Output is correct
25 Correct 139 ms 608780 KB Output is correct
26 Correct 139 ms 608764 KB Output is correct
27 Correct 141 ms 608780 KB Output is correct
28 Correct 145 ms 609080 KB Output is correct
29 Correct 147 ms 609548 KB Output is correct
30 Correct 148 ms 609648 KB Output is correct
31 Correct 148 ms 609292 KB Output is correct
32 Correct 147 ms 609288 KB Output is correct
33 Correct 287 ms 676344 KB Output is correct
34 Correct 300 ms 676300 KB Output is correct
35 Correct 295 ms 676344 KB Output is correct
36 Correct 282 ms 676452 KB Output is correct
37 Correct 296 ms 661324 KB Output is correct
38 Correct 284 ms 661208 KB Output is correct
39 Correct 298 ms 661588 KB Output is correct
40 Correct 291 ms 655108 KB Output is correct
41 Correct 317 ms 664060 KB Output is correct
42 Correct 329 ms 664576 KB Output is correct
43 Correct 406 ms 671552 KB Output is correct
44 Correct 411 ms 671668 KB Output is correct
45 Correct 268 ms 650944 KB Output is correct
46 Correct 256 ms 634560 KB Output is correct
47 Correct 376 ms 668760 KB Output is correct
48 Correct 389 ms 669616 KB Output is correct
49 Correct 143 ms 597812 KB Output is correct
50 Correct 137 ms 597840 KB Output is correct
51 Correct 141 ms 597844 KB Output is correct
52 Correct 131 ms 595532 KB Output is correct
53 Correct 139 ms 597844 KB Output is correct
54 Correct 140 ms 597920 KB Output is correct
55 Correct 140 ms 597792 KB Output is correct
56 Correct 141 ms 597840 KB Output is correct
57 Correct 142 ms 597800 KB Output is correct
58 Correct 140 ms 593424 KB Output is correct
59 Correct 142 ms 593496 KB Output is correct
60 Correct 131 ms 597584 KB Output is correct
61 Correct 1432 ms 850656 KB Output is correct
62 Runtime error 841 ms 1048576 KB Execution killed with signal 9
63 Halted 0 ms 0 KB -