oj.uz

Submission #928823

# Submission time Handle Problem Language Result Execution time Memory
928823 2024-02-17T06:22:00 Z knon0501 Rectangles (IOI19_rect) C++17
72 / 100
 3099 ms 1048576 KB 
#include "rect.h"
#include <bits/stdc++.h>
using namespace std;

vector<short> b[2505][2505];
vector<short> c[2505][2505];
vector<pair<short,short>> d[2505][2505];
vector<pair<short,short>> e[2505][2505];
short lef[2505][2505];
short rig[2505][2505];
short up[2505][2505];
short down[2505][2505];
vector<vector<short>> 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<short>().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<short>().swap(c[i][j]);


		}
	}
	
	for(int i = 1 ; i<n-1 ; i++){
		for(int j=1 ; j<m-1 ; j++){
			short x = lef[i][j];
			short y = rig[i][j];
			short z = up[i][j];
			short 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(),(pair<short,short>){z+1,1e9});
			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(),(pair<short,short>){x+1,1e9});
			
			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 229 ms 598100 KB Output is correct
2 Correct 128 ms 597840 KB Output is correct
3 Correct 131 ms 597928 KB Output is correct
4 Correct 131 ms 597880 KB Output is correct
5 Correct 128 ms 597880 KB Output is correct
6 Correct 129 ms 597932 KB Output is correct
7 Correct 129 ms 597844 KB Output is correct
8 Correct 134 ms 597972 KB Output is correct
9 Correct 131 ms 597840 KB Output is correct
10 Correct 130 ms 597844 KB Output is correct
11 Correct 129 ms 597716 KB Output is correct
12 Correct 130 ms 597928 KB Output is correct
13 Correct 133 ms 591440 KB Output is correct
14 Correct 131 ms 595512 KB Output is correct
15 Correct 128 ms 597796 KB Output is correct
16 Correct 129 ms 597588 KB Output is correct
17 Correct 134 ms 591556 KB Output is correct
18 Correct 130 ms 593492 KB Output is correct
19 Correct 131 ms 597828 KB Output is correct
20 Correct 127 ms 597740 KB Output is correct
21 Correct 128 ms 595540 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 229 ms 598100 KB Output is correct
2 Correct 128 ms 597840 KB Output is correct
3 Correct 131 ms 597928 KB Output is correct
4 Correct 131 ms 597880 KB Output is correct
5 Correct 128 ms 597880 KB Output is correct
6 Correct 129 ms 597932 KB Output is correct
7 Correct 129 ms 597844 KB Output is correct
8 Correct 134 ms 597972 KB Output is correct
9 Correct 131 ms 597840 KB Output is correct
10 Correct 130 ms 597844 KB Output is correct
11 Correct 129 ms 597716 KB Output is correct
12 Correct 130 ms 597928 KB Output is correct
13 Correct 133 ms 591440 KB Output is correct
14 Correct 131 ms 595512 KB Output is correct
15 Correct 128 ms 597796 KB Output is correct
16 Correct 129 ms 597588 KB Output is correct
17 Correct 134 ms 591556 KB Output is correct
18 Correct 130 ms 593492 KB Output is correct
19 Correct 131 ms 597828 KB Output is correct
20 Correct 127 ms 597740 KB Output is correct
21 Correct 128 ms 595540 KB Output is correct
22 Correct 131 ms 606392 KB Output is correct
23 Correct 140 ms 606412 KB Output is correct
24 Correct 130 ms 606288 KB Output is correct
25 Correct 138 ms 606544 KB Output is correct
26 Correct 137 ms 606548 KB Output is correct
27 Correct 136 ms 606548 KB Output is correct
28 Correct 134 ms 606532 KB Output is correct
29 Correct 132 ms 606248 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 229 ms 598100 KB Output is correct
2 Correct 128 ms 597840 KB Output is correct
3 Correct 131 ms 597928 KB Output is correct
4 Correct 131 ms 597880 KB Output is correct
5 Correct 128 ms 597880 KB Output is correct
6 Correct 129 ms 597932 KB Output is correct
7 Correct 129 ms 597844 KB Output is correct
8 Correct 134 ms 597972 KB Output is correct
9 Correct 131 ms 597840 KB Output is correct
10 Correct 130 ms 597844 KB Output is correct
11 Correct 129 ms 597716 KB Output is correct
12 Correct 130 ms 597928 KB Output is correct
13 Correct 133 ms 591440 KB Output is correct
14 Correct 131 ms 595512 KB Output is correct
15 Correct 128 ms 597796 KB Output is correct
16 Correct 129 ms 597588 KB Output is correct
17 Correct 131 ms 606392 KB Output is correct
18 Correct 140 ms 606412 KB Output is correct
19 Correct 130 ms 606288 KB Output is correct
20 Correct 138 ms 606544 KB Output is correct
21 Correct 137 ms 606548 KB Output is correct
22 Correct 136 ms 606548 KB Output is correct
23 Correct 134 ms 606532 KB Output is correct
24 Correct 132 ms 606248 KB Output is correct
25 Correct 134 ms 591556 KB Output is correct
26 Correct 130 ms 593492 KB Output is correct
27 Correct 131 ms 597828 KB Output is correct
28 Correct 127 ms 597740 KB Output is correct
29 Correct 128 ms 595540 KB Output is correct
30 Correct 151 ms 608788 KB Output is correct
31 Correct 148 ms 608780 KB Output is correct
32 Correct 142 ms 608776 KB Output is correct
33 Correct 150 ms 609032 KB Output is correct
34 Correct 147 ms 609292 KB Output is correct
35 Correct 160 ms 609380 KB Output is correct
36 Correct 149 ms 609084 KB Output is correct
37 Correct 146 ms 609068 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 229 ms 598100 KB Output is correct
2 Correct 128 ms 597840 KB Output is correct
3 Correct 131 ms 597928 KB Output is correct
4 Correct 131 ms 597880 KB Output is correct
5 Correct 128 ms 597880 KB Output is correct
6 Correct 129 ms 597932 KB Output is correct
7 Correct 129 ms 597844 KB Output is correct
8 Correct 134 ms 597972 KB Output is correct
9 Correct 131 ms 597840 KB Output is correct
10 Correct 130 ms 597844 KB Output is correct
11 Correct 129 ms 597716 KB Output is correct
12 Correct 130 ms 597928 KB Output is correct
13 Correct 133 ms 591440 KB Output is correct
14 Correct 131 ms 595512 KB Output is correct
15 Correct 128 ms 597796 KB Output is correct
16 Correct 129 ms 597588 KB Output is correct
17 Correct 131 ms 606392 KB Output is correct
18 Correct 140 ms 606412 KB Output is correct
19 Correct 130 ms 606288 KB Output is correct
20 Correct 138 ms 606544 KB Output is correct
21 Correct 137 ms 606548 KB Output is correct
22 Correct 136 ms 606548 KB Output is correct
23 Correct 134 ms 606532 KB Output is correct
24 Correct 132 ms 606248 KB Output is correct
25 Correct 151 ms 608788 KB Output is correct
26 Correct 148 ms 608780 KB Output is correct
27 Correct 142 ms 608776 KB Output is correct
28 Correct 150 ms 609032 KB Output is correct
29 Correct 147 ms 609292 KB Output is correct
30 Correct 160 ms 609380 KB Output is correct
31 Correct 149 ms 609084 KB Output is correct
32 Correct 146 ms 609068 KB Output is correct
33 Correct 134 ms 591556 KB Output is correct
34 Correct 130 ms 593492 KB Output is correct
35 Correct 131 ms 597828 KB Output is correct
36 Correct 127 ms 597740 KB Output is correct
37 Correct 128 ms 595540 KB Output is correct
38 Correct 311 ms 658284 KB Output is correct
39 Correct 294 ms 658488 KB Output is correct
40 Correct 304 ms 658500 KB Output is correct
41 Correct 274 ms 659044 KB Output is correct
42 Correct 285 ms 642892 KB Output is correct
43 Correct 275 ms 643000 KB Output is correct
44 Correct 281 ms 643104 KB Output is correct
45 Correct 273 ms 642760 KB Output is correct
46 Correct 327 ms 644900 KB Output is correct
47 Correct 336 ms 645324 KB Output is correct
48 Correct 392 ms 649084 KB Output is correct
49 Correct 397 ms 649920 KB Output is correct
50 Correct 265 ms 632080 KB Output is correct
51 Correct 247 ms 623656 KB Output is correct
52 Correct 372 ms 647748 KB Output is correct
53 Correct 384 ms 647152 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 142 ms 597964 KB Output is correct
2 Correct 137 ms 597992 KB Output is correct
3 Correct 143 ms 597844 KB Output is correct
4 Correct 137 ms 595680 KB Output is correct
5 Correct 145 ms 597988 KB Output is correct
6 Correct 143 ms 598024 KB Output is correct
7 Correct 140 ms 597840 KB Output is correct
8 Correct 142 ms 597844 KB Output is correct
9 Correct 142 ms 597844 KB Output is correct
10 Correct 142 ms 593480 KB Output is correct
11 Correct 144 ms 593492 KB Output is correct

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 134 ms 591556 KB Output is correct
2 Correct 130 ms 593492 KB Output is correct
3 Correct 131 ms 597828 KB Output is correct
4 Correct 127 ms 597740 KB Output is correct
5 Correct 128 ms 595540 KB Output is correct
6 Correct 134 ms 597584 KB Output is correct
7 Correct 1406 ms 806476 KB Output is correct
8 Correct 3099 ms 1037412 KB Output is correct
9 Correct 3006 ms 1038264 KB Output is correct
10 Correct 3074 ms 1039284 KB Output is correct
11 Correct 826 ms 809780 KB Output is correct
12 Correct 1496 ms 1002556 KB Output is correct
13 Correct 1564 ms 1018092 KB Output is correct

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 229 ms 598100 KB Output is correct
2 Correct 128 ms 597840 KB Output is correct
3 Correct 131 ms 597928 KB Output is correct
4 Correct 131 ms 597880 KB Output is correct
5 Correct 128 ms 597880 KB Output is correct
6 Correct 129 ms 597932 KB Output is correct
7 Correct 129 ms 597844 KB Output is correct
8 Correct 134 ms 597972 KB Output is correct
9 Correct 131 ms 597840 KB Output is correct
10 Correct 130 ms 597844 KB Output is correct
11 Correct 129 ms 597716 KB Output is correct
12 Correct 130 ms 597928 KB Output is correct
13 Correct 133 ms 591440 KB Output is correct
14 Correct 131 ms 595512 KB Output is correct
15 Correct 128 ms 597796 KB Output is correct
16 Correct 129 ms 597588 KB Output is correct
17 Correct 131 ms 606392 KB Output is correct
18 Correct 140 ms 606412 KB Output is correct
19 Correct 130 ms 606288 KB Output is correct
20 Correct 138 ms 606544 KB Output is correct
21 Correct 137 ms 606548 KB Output is correct
22 Correct 136 ms 606548 KB Output is correct
23 Correct 134 ms 606532 KB Output is correct
24 Correct 132 ms 606248 KB Output is correct
25 Correct 151 ms 608788 KB Output is correct
26 Correct 148 ms 608780 KB Output is correct
27 Correct 142 ms 608776 KB Output is correct
28 Correct 150 ms 609032 KB Output is correct
29 Correct 147 ms 609292 KB Output is correct
30 Correct 160 ms 609380 KB Output is correct
31 Correct 149 ms 609084 KB Output is correct
32 Correct 146 ms 609068 KB Output is correct
33 Correct 311 ms 658284 KB Output is correct
34 Correct 294 ms 658488 KB Output is correct
35 Correct 304 ms 658500 KB Output is correct
36 Correct 274 ms 659044 KB Output is correct
37 Correct 285 ms 642892 KB Output is correct
38 Correct 275 ms 643000 KB Output is correct
39 Correct 281 ms 643104 KB Output is correct
40 Correct 273 ms 642760 KB Output is correct
41 Correct 327 ms 644900 KB Output is correct
42 Correct 336 ms 645324 KB Output is correct
43 Correct 392 ms 649084 KB Output is correct
44 Correct 397 ms 649920 KB Output is correct
45 Correct 265 ms 632080 KB Output is correct
46 Correct 247 ms 623656 KB Output is correct
47 Correct 372 ms 647748 KB Output is correct
48 Correct 384 ms 647152 KB Output is correct
49 Correct 142 ms 597964 KB Output is correct
50 Correct 137 ms 597992 KB Output is correct
51 Correct 143 ms 597844 KB Output is correct
52 Correct 137 ms 595680 KB Output is correct
53 Correct 145 ms 597988 KB Output is correct
54 Correct 143 ms 598024 KB Output is correct
55 Correct 140 ms 597840 KB Output is correct
56 Correct 142 ms 597844 KB Output is correct
57 Correct 142 ms 597844 KB Output is correct
58 Correct 142 ms 593480 KB Output is correct
59 Correct 144 ms 593492 KB Output is correct
60 Correct 134 ms 597584 KB Output is correct
61 Correct 1406 ms 806476 KB Output is correct
62 Correct 3099 ms 1037412 KB Output is correct
63 Correct 3006 ms 1038264 KB Output is correct
64 Correct 3074 ms 1039284 KB Output is correct
65 Correct 826 ms 809780 KB Output is correct
66 Correct 1496 ms 1002556 KB Output is correct
67 Correct 1564 ms 1018092 KB Output is correct
68 Correct 134 ms 591556 KB Output is correct
69 Correct 130 ms 593492 KB Output is correct
70 Correct 131 ms 597828 KB Output is correct
71 Correct 127 ms 597740 KB Output is correct
72 Correct 128 ms 595540 KB Output is correct
73 Runtime error 1352 ms 1048576 KB Execution killed with signal 9
74 Halted 0 ms 0 KB -