oj.uz

Submission #928816

# Submission time Handle Problem Language Result Execution time Memory
928816 2024-02-17T06:11:06 Z knon0501 Rectangles (IOI19_rect) C++17
59 / 100
 1403 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);
		}
	}
		std::vector<vector<int>>().swap(a);
	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 130 ms 597488 KB Output is correct
2 Correct 133 ms 601800 KB Output is correct
3 Correct 139 ms 601852 KB Output is correct
4 Correct 130 ms 601680 KB Output is correct
5 Correct 136 ms 601684 KB Output is correct
6 Correct 129 ms 601872 KB Output is correct
7 Correct 134 ms 601684 KB Output is correct
8 Correct 134 ms 597528 KB Output is correct
9 Correct 130 ms 601740 KB Output is correct
10 Correct 139 ms 601640 KB Output is correct
11 Correct 141 ms 601640 KB Output is correct
12 Correct 135 ms 601828 KB Output is correct
13 Correct 130 ms 591292 KB Output is correct
14 Correct 129 ms 595540 KB Output is correct
15 Correct 130 ms 597584 KB Output is correct
16 Correct 142 ms 597524 KB Output is correct
17 Correct 135 ms 591440 KB Output is correct
18 Correct 135 ms 593528 KB Output is correct
19 Correct 134 ms 601828 KB Output is correct
20 Correct 131 ms 601680 KB Output is correct
21 Correct 132 ms 595412 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 130 ms 597488 KB Output is correct
2 Correct 133 ms 601800 KB Output is correct
3 Correct 139 ms 601852 KB Output is correct
4 Correct 130 ms 601680 KB Output is correct
5 Correct 136 ms 601684 KB Output is correct
6 Correct 129 ms 601872 KB Output is correct
7 Correct 134 ms 601684 KB Output is correct
8 Correct 134 ms 597528 KB Output is correct
9 Correct 130 ms 601740 KB Output is correct
10 Correct 139 ms 601640 KB Output is correct
11 Correct 141 ms 601640 KB Output is correct
12 Correct 135 ms 601828 KB Output is correct
13 Correct 130 ms 591292 KB Output is correct
14 Correct 129 ms 595540 KB Output is correct
15 Correct 130 ms 597584 KB Output is correct
16 Correct 142 ms 597524 KB Output is correct
17 Correct 135 ms 591440 KB Output is correct
18 Correct 135 ms 593528 KB Output is correct
19 Correct 134 ms 601828 KB Output is correct
20 Correct 131 ms 601680 KB Output is correct
21 Correct 132 ms 595412 KB Output is correct
22 Correct 136 ms 606276 KB Output is correct
23 Correct 137 ms 606304 KB Output is correct
24 Correct 137 ms 606216 KB Output is correct
25 Correct 132 ms 606308 KB Output is correct
26 Correct 140 ms 606212 KB Output is correct
27 Correct 133 ms 606268 KB Output is correct
28 Correct 131 ms 606292 KB Output is correct
29 Correct 140 ms 606140 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 130 ms 597488 KB Output is correct
2 Correct 133 ms 601800 KB Output is correct
3 Correct 139 ms 601852 KB Output is correct
4 Correct 130 ms 601680 KB Output is correct
5 Correct 136 ms 601684 KB Output is correct
6 Correct 129 ms 601872 KB Output is correct
7 Correct 134 ms 601684 KB Output is correct
8 Correct 134 ms 597528 KB Output is correct
9 Correct 130 ms 601740 KB Output is correct
10 Correct 139 ms 601640 KB Output is correct
11 Correct 141 ms 601640 KB Output is correct
12 Correct 135 ms 601828 KB Output is correct
13 Correct 130 ms 591292 KB Output is correct
14 Correct 129 ms 595540 KB Output is correct
15 Correct 130 ms 597584 KB Output is correct
16 Correct 142 ms 597524 KB Output is correct
17 Correct 136 ms 606276 KB Output is correct
18 Correct 137 ms 606304 KB Output is correct
19 Correct 137 ms 606216 KB Output is correct
20 Correct 132 ms 606308 KB Output is correct
21 Correct 140 ms 606212 KB Output is correct
22 Correct 133 ms 606268 KB Output is correct
23 Correct 131 ms 606292 KB Output is correct
24 Correct 140 ms 606140 KB Output is correct
25 Correct 135 ms 591440 KB Output is correct
26 Correct 135 ms 593528 KB Output is correct
27 Correct 134 ms 601828 KB Output is correct
28 Correct 131 ms 601680 KB Output is correct
29 Correct 132 ms 595412 KB Output is correct
30 Correct 143 ms 608468 KB Output is correct
31 Correct 142 ms 608528 KB Output is correct
32 Correct 149 ms 608508 KB Output is correct
33 Correct 148 ms 608832 KB Output is correct
34 Correct 166 ms 609292 KB Output is correct
35 Correct 149 ms 609292 KB Output is correct
36 Correct 147 ms 609296 KB Output is correct
37 Correct 165 ms 609260 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 130 ms 597488 KB Output is correct
2 Correct 133 ms 601800 KB Output is correct
3 Correct 139 ms 601852 KB Output is correct
4 Correct 130 ms 601680 KB Output is correct
5 Correct 136 ms 601684 KB Output is correct
6 Correct 129 ms 601872 KB Output is correct
7 Correct 134 ms 601684 KB Output is correct
8 Correct 134 ms 597528 KB Output is correct
9 Correct 130 ms 601740 KB Output is correct
10 Correct 139 ms 601640 KB Output is correct
11 Correct 141 ms 601640 KB Output is correct
12 Correct 135 ms 601828 KB Output is correct
13 Correct 130 ms 591292 KB Output is correct
14 Correct 129 ms 595540 KB Output is correct
15 Correct 130 ms 597584 KB Output is correct
16 Correct 142 ms 597524 KB Output is correct
17 Correct 136 ms 606276 KB Output is correct
18 Correct 137 ms 606304 KB Output is correct
19 Correct 137 ms 606216 KB Output is correct
20 Correct 132 ms 606308 KB Output is correct
21 Correct 140 ms 606212 KB Output is correct
22 Correct 133 ms 606268 KB Output is correct
23 Correct 131 ms 606292 KB Output is correct
24 Correct 140 ms 606140 KB Output is correct
25 Correct 143 ms 608468 KB Output is correct
26 Correct 142 ms 608528 KB Output is correct
27 Correct 149 ms 608508 KB Output is correct
28 Correct 148 ms 608832 KB Output is correct
29 Correct 166 ms 609292 KB Output is correct
30 Correct 149 ms 609292 KB Output is correct
31 Correct 147 ms 609296 KB Output is correct
32 Correct 165 ms 609260 KB Output is correct
33 Correct 135 ms 591440 KB Output is correct
34 Correct 135 ms 593528 KB Output is correct
35 Correct 134 ms 601828 KB Output is correct
36 Correct 131 ms 601680 KB Output is correct
37 Correct 132 ms 595412 KB Output is correct
38 Correct 296 ms 674344 KB Output is correct
39 Correct 283 ms 675140 KB Output is correct
40 Correct 296 ms 674884 KB Output is correct
41 Correct 281 ms 674344 KB Output is correct
42 Correct 287 ms 659276 KB Output is correct
43 Correct 298 ms 660084 KB Output is correct
44 Correct 300 ms 659292 KB Output is correct
45 Correct 283 ms 654092 KB Output is correct
46 Correct 301 ms 662124 KB Output is correct
47 Correct 323 ms 662720 KB Output is correct
48 Correct 398 ms 669544 KB Output is correct
49 Correct 398 ms 670392 KB Output is correct
50 Correct 258 ms 650160 KB Output is correct
51 Correct 254 ms 633760 KB Output is correct
52 Correct 382 ms 666820 KB Output is correct
53 Correct 385 ms 666864 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 143 ms 597976 KB Output is correct
2 Correct 138 ms 597680 KB Output is correct
3 Correct 139 ms 597652 KB Output is correct
4 Correct 131 ms 595472 KB Output is correct
5 Correct 146 ms 597840 KB Output is correct
6 Correct 140 ms 597844 KB Output is correct
7 Correct 141 ms 597808 KB Output is correct
8 Correct 145 ms 597840 KB Output is correct
9 Correct 141 ms 597924 KB Output is correct
10 Correct 139 ms 593540 KB Output is correct
11 Correct 140 ms 593420 KB Output is correct

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 135 ms 591440 KB Output is correct
2 Correct 135 ms 593528 KB Output is correct
3 Correct 134 ms 601828 KB Output is correct
4 Correct 131 ms 601680 KB Output is correct
5 Correct 132 ms 595412 KB Output is correct
6 Correct 134 ms 597528 KB Output is correct
7 Correct 1403 ms 840460 KB Output is correct
8 Runtime error 832 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 130 ms 597488 KB Output is correct
2 Correct 133 ms 601800 KB Output is correct
3 Correct 139 ms 601852 KB Output is correct
4 Correct 130 ms 601680 KB Output is correct
5 Correct 136 ms 601684 KB Output is correct
6 Correct 129 ms 601872 KB Output is correct
7 Correct 134 ms 601684 KB Output is correct
8 Correct 134 ms 597528 KB Output is correct
9 Correct 130 ms 601740 KB Output is correct
10 Correct 139 ms 601640 KB Output is correct
11 Correct 141 ms 601640 KB Output is correct
12 Correct 135 ms 601828 KB Output is correct
13 Correct 130 ms 591292 KB Output is correct
14 Correct 129 ms 595540 KB Output is correct
15 Correct 130 ms 597584 KB Output is correct
16 Correct 142 ms 597524 KB Output is correct
17 Correct 136 ms 606276 KB Output is correct
18 Correct 137 ms 606304 KB Output is correct
19 Correct 137 ms 606216 KB Output is correct
20 Correct 132 ms 606308 KB Output is correct
21 Correct 140 ms 606212 KB Output is correct
22 Correct 133 ms 606268 KB Output is correct
23 Correct 131 ms 606292 KB Output is correct
24 Correct 140 ms 606140 KB Output is correct
25 Correct 143 ms 608468 KB Output is correct
26 Correct 142 ms 608528 KB Output is correct
27 Correct 149 ms 608508 KB Output is correct
28 Correct 148 ms 608832 KB Output is correct
29 Correct 166 ms 609292 KB Output is correct
30 Correct 149 ms 609292 KB Output is correct
31 Correct 147 ms 609296 KB Output is correct
32 Correct 165 ms 609260 KB Output is correct
33 Correct 296 ms 674344 KB Output is correct
34 Correct 283 ms 675140 KB Output is correct
35 Correct 296 ms 674884 KB Output is correct
36 Correct 281 ms 674344 KB Output is correct
37 Correct 287 ms 659276 KB Output is correct
38 Correct 298 ms 660084 KB Output is correct
39 Correct 300 ms 659292 KB Output is correct
40 Correct 283 ms 654092 KB Output is correct
41 Correct 301 ms 662124 KB Output is correct
42 Correct 323 ms 662720 KB Output is correct
43 Correct 398 ms 669544 KB Output is correct
44 Correct 398 ms 670392 KB Output is correct
45 Correct 258 ms 650160 KB Output is correct
46 Correct 254 ms 633760 KB Output is correct
47 Correct 382 ms 666820 KB Output is correct
48 Correct 385 ms 666864 KB Output is correct
49 Correct 143 ms 597976 KB Output is correct
50 Correct 138 ms 597680 KB Output is correct
51 Correct 139 ms 597652 KB Output is correct
52 Correct 131 ms 595472 KB Output is correct
53 Correct 146 ms 597840 KB Output is correct
54 Correct 140 ms 597844 KB Output is correct
55 Correct 141 ms 597808 KB Output is correct
56 Correct 145 ms 597840 KB Output is correct
57 Correct 141 ms 597924 KB Output is correct
58 Correct 139 ms 593540 KB Output is correct
59 Correct 140 ms 593420 KB Output is correct
60 Correct 134 ms 597528 KB Output is correct
61 Correct 1403 ms 840460 KB Output is correct
62 Runtime error 832 ms 1048576 KB Execution killed with signal 9
63 Halted 0 ms 0 KB -