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답안 #928835

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
928835 2024-02-17T06:32:49 Z knon0501 Rectangles (IOI19_rect) C++17
72 / 100
 2867 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<short> v[2500*2500];

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]);

		}
	}
	int nn = 0;
	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[++nn]={x,y,z,w};
			
		}
	}
	sort(v+1,v+nn+1);

	for(int i=1 ; i<=nn ; i++){
		if(v[i]==v[i-1])continue;
	
		auto vv = v[i];
		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+1,32767});
			if(k== d[x+1][y-1].begin())continue;
	
			if((--k)->second <w-1)continue;
			
			
			auto t = upper_bound(e[z+1][w-1].begin(),e[z+1][w-1].end(),(pair<short,short>){x+1,32767});
			
			if(t== e[z+1][w-1].begin())continue;
			
			if((--t)->second <y-1)continue;
			ans++;
	}
	return ans;
}

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 320 ms 744532 KB Output is correct
2 Correct 166 ms 744524 KB Output is correct
3 Correct 167 ms 744536 KB Output is correct
4 Correct 169 ms 744524 KB Output is correct
5 Correct 165 ms 744712 KB Output is correct
6 Correct 165 ms 744692 KB Output is correct
7 Correct 173 ms 744640 KB Output is correct
8 Correct 165 ms 744712 KB Output is correct
9 Correct 169 ms 744572 KB Output is correct
10 Correct 175 ms 744536 KB Output is correct
11 Correct 165 ms 744528 KB Output is correct
12 Correct 167 ms 744584 KB Output is correct
13 Correct 164 ms 738388 KB Output is correct
14 Correct 162 ms 742480 KB Output is correct
15 Correct 165 ms 744656 KB Output is correct
16 Correct 164 ms 744536 KB Output is correct
17 Correct 169 ms 738388 KB Output is correct
18 Correct 166 ms 740412 KB Output is correct
19 Correct 171 ms 744720 KB Output is correct
20 Correct 171 ms 744672 KB Output is correct
21 Correct 176 ms 742484 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 320 ms 744532 KB Output is correct
2 Correct 166 ms 744524 KB Output is correct
3 Correct 167 ms 744536 KB Output is correct
4 Correct 169 ms 744524 KB Output is correct
5 Correct 165 ms 744712 KB Output is correct
6 Correct 165 ms 744692 KB Output is correct
7 Correct 173 ms 744640 KB Output is correct
8 Correct 165 ms 744712 KB Output is correct
9 Correct 169 ms 744572 KB Output is correct
10 Correct 175 ms 744536 KB Output is correct
11 Correct 165 ms 744528 KB Output is correct
12 Correct 167 ms 744584 KB Output is correct
13 Correct 164 ms 738388 KB Output is correct
14 Correct 162 ms 742480 KB Output is correct
15 Correct 165 ms 744656 KB Output is correct
16 Correct 164 ms 744536 KB Output is correct
17 Correct 169 ms 738388 KB Output is correct
18 Correct 166 ms 740412 KB Output is correct
19 Correct 171 ms 744720 KB Output is correct
20 Correct 171 ms 744672 KB Output is correct
21 Correct 176 ms 742484 KB Output is correct
22 Correct 167 ms 744844 KB Output is correct
23 Correct 170 ms 745064 KB Output is correct
24 Correct 166 ms 744916 KB Output is correct
25 Correct 170 ms 744788 KB Output is correct
26 Correct 171 ms 744788 KB Output is correct
27 Correct 166 ms 744788 KB Output is correct
28 Correct 169 ms 744788 KB Output is correct
29 Correct 167 ms 744752 KB Output is correct

Subtask #3
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 320 ms 744532 KB Output is correct
2 Correct 166 ms 744524 KB Output is correct
3 Correct 167 ms 744536 KB Output is correct
4 Correct 169 ms 744524 KB Output is correct
5 Correct 165 ms 744712 KB Output is correct
6 Correct 165 ms 744692 KB Output is correct
7 Correct 173 ms 744640 KB Output is correct
8 Correct 165 ms 744712 KB Output is correct
9 Correct 169 ms 744572 KB Output is correct
10 Correct 175 ms 744536 KB Output is correct
11 Correct 165 ms 744528 KB Output is correct
12 Correct 167 ms 744584 KB Output is correct
13 Correct 164 ms 738388 KB Output is correct
14 Correct 162 ms 742480 KB Output is correct
15 Correct 165 ms 744656 KB Output is correct
16 Correct 164 ms 744536 KB Output is correct
17 Correct 167 ms 744844 KB Output is correct
18 Correct 170 ms 745064 KB Output is correct
19 Correct 166 ms 744916 KB Output is correct
20 Correct 170 ms 744788 KB Output is correct
21 Correct 171 ms 744788 KB Output is correct
22 Correct 166 ms 744788 KB Output is correct
23 Correct 169 ms 744788 KB Output is correct
24 Correct 167 ms 744752 KB Output is correct
25 Correct 169 ms 738388 KB Output is correct
26 Correct 166 ms 740412 KB Output is correct
27 Correct 171 ms 744720 KB Output is correct
28 Correct 171 ms 744672 KB Output is correct
29 Correct 176 ms 742484 KB Output is correct
30 Correct 174 ms 746120 KB Output is correct
31 Correct 178 ms 745960 KB Output is correct
32 Correct 181 ms 746024 KB Output is correct
33 Correct 180 ms 746204 KB Output is correct
34 Correct 182 ms 746576 KB Output is correct
35 Correct 182 ms 746492 KB Output is correct
36 Correct 190 ms 746580 KB Output is correct
37 Correct 184 ms 746324 KB Output is correct

Subtask #4
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 320 ms 744532 KB Output is correct
2 Correct 166 ms 744524 KB Output is correct
3 Correct 167 ms 744536 KB Output is correct
4 Correct 169 ms 744524 KB Output is correct
5 Correct 165 ms 744712 KB Output is correct
6 Correct 165 ms 744692 KB Output is correct
7 Correct 173 ms 744640 KB Output is correct
8 Correct 165 ms 744712 KB Output is correct
9 Correct 169 ms 744572 KB Output is correct
10 Correct 175 ms 744536 KB Output is correct
11 Correct 165 ms 744528 KB Output is correct
12 Correct 167 ms 744584 KB Output is correct
13 Correct 164 ms 738388 KB Output is correct
14 Correct 162 ms 742480 KB Output is correct
15 Correct 165 ms 744656 KB Output is correct
16 Correct 164 ms 744536 KB Output is correct
17 Correct 167 ms 744844 KB Output is correct
18 Correct 170 ms 745064 KB Output is correct
19 Correct 166 ms 744916 KB Output is correct
20 Correct 170 ms 744788 KB Output is correct
21 Correct 171 ms 744788 KB Output is correct
22 Correct 166 ms 744788 KB Output is correct
23 Correct 169 ms 744788 KB Output is correct
24 Correct 167 ms 744752 KB Output is correct
25 Correct 174 ms 746120 KB Output is correct
26 Correct 178 ms 745960 KB Output is correct
27 Correct 181 ms 746024 KB Output is correct
28 Correct 180 ms 746204 KB Output is correct
29 Correct 182 ms 746576 KB Output is correct
30 Correct 182 ms 746492 KB Output is correct
31 Correct 190 ms 746580 KB Output is correct
32 Correct 184 ms 746324 KB Output is correct
33 Correct 169 ms 738388 KB Output is correct
34 Correct 166 ms 740412 KB Output is correct
35 Correct 171 ms 744720 KB Output is correct
36 Correct 171 ms 744672 KB Output is correct
37 Correct 176 ms 742484 KB Output is correct
38 Correct 321 ms 793424 KB Output is correct
39 Correct 317 ms 793404 KB Output is correct
40 Correct 328 ms 793588 KB Output is correct
41 Correct 314 ms 793560 KB Output is correct
42 Correct 316 ms 778372 KB Output is correct
43 Correct 323 ms 778348 KB Output is correct
44 Correct 324 ms 778368 KB Output is correct
45 Correct 307 ms 771084 KB Output is correct
46 Correct 336 ms 779856 KB Output is correct
47 Correct 347 ms 780112 KB Output is correct
48 Correct 416 ms 784348 KB Output is correct
49 Correct 450 ms 784720 KB Output is correct
50 Correct 288 ms 772680 KB Output is correct
51 Correct 276 ms 764500 KB Output is correct
52 Correct 414 ms 782512 KB Output is correct
53 Correct 405 ms 782420 KB Output is correct

Subtask #5
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 178 ms 744784 KB Output is correct
2 Correct 173 ms 744848 KB Output is correct
3 Correct 179 ms 744800 KB Output is correct
4 Correct 168 ms 742580 KB Output is correct
5 Correct 180 ms 744784 KB Output is correct
6 Correct 177 ms 744792 KB Output is correct
7 Correct 176 ms 744748 KB Output is correct
8 Correct 185 ms 744736 KB Output is correct
9 Correct 181 ms 744852 KB Output is correct
10 Correct 174 ms 740540 KB Output is correct
11 Correct 175 ms 740436 KB Output is correct

Subtask #6
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 169 ms 738388 KB Output is correct
2 Correct 166 ms 740412 KB Output is correct
3 Correct 171 ms 744720 KB Output is correct
4 Correct 171 ms 744672 KB Output is correct
5 Correct 176 ms 742484 KB Output is correct
6 Correct 167 ms 744648 KB Output is correct
7 Correct 1290 ms 878420 KB Output is correct
8 Correct 2789 ms 1024488 KB Output is correct
9 Correct 2825 ms 1025472 KB Output is correct
10 Correct 2867 ms 1025740 KB Output is correct
11 Correct 773 ms 877904 KB Output is correct
12 Correct 1298 ms 992020 KB Output is correct
13 Correct 1367 ms 1005648 KB Output is correct

Subtask #7
0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Correct 320 ms 744532 KB Output is correct
2 Correct 166 ms 744524 KB Output is correct
3 Correct 167 ms 744536 KB Output is correct
4 Correct 169 ms 744524 KB Output is correct
5 Correct 165 ms 744712 KB Output is correct
6 Correct 165 ms 744692 KB Output is correct
7 Correct 173 ms 744640 KB Output is correct
8 Correct 165 ms 744712 KB Output is correct
9 Correct 169 ms 744572 KB Output is correct
10 Correct 175 ms 744536 KB Output is correct
11 Correct 165 ms 744528 KB Output is correct
12 Correct 167 ms 744584 KB Output is correct
13 Correct 164 ms 738388 KB Output is correct
14 Correct 162 ms 742480 KB Output is correct
15 Correct 165 ms 744656 KB Output is correct
16 Correct 164 ms 744536 KB Output is correct
17 Correct 167 ms 744844 KB Output is correct
18 Correct 170 ms 745064 KB Output is correct
19 Correct 166 ms 744916 KB Output is correct
20 Correct 170 ms 744788 KB Output is correct
21 Correct 171 ms 744788 KB Output is correct
22 Correct 166 ms 744788 KB Output is correct
23 Correct 169 ms 744788 KB Output is correct
24 Correct 167 ms 744752 KB Output is correct
25 Correct 174 ms 746120 KB Output is correct
26 Correct 178 ms 745960 KB Output is correct
27 Correct 181 ms 746024 KB Output is correct
28 Correct 180 ms 746204 KB Output is correct
29 Correct 182 ms 746576 KB Output is correct
30 Correct 182 ms 746492 KB Output is correct
31 Correct 190 ms 746580 KB Output is correct
32 Correct 184 ms 746324 KB Output is correct
33 Correct 321 ms 793424 KB Output is correct
34 Correct 317 ms 793404 KB Output is correct
35 Correct 328 ms 793588 KB Output is correct
36 Correct 314 ms 793560 KB Output is correct
37 Correct 316 ms 778372 KB Output is correct
38 Correct 323 ms 778348 KB Output is correct
39 Correct 324 ms 778368 KB Output is correct
40 Correct 307 ms 771084 KB Output is correct
41 Correct 336 ms 779856 KB Output is correct
42 Correct 347 ms 780112 KB Output is correct
43 Correct 416 ms 784348 KB Output is correct
44 Correct 450 ms 784720 KB Output is correct
45 Correct 288 ms 772680 KB Output is correct
46 Correct 276 ms 764500 KB Output is correct
47 Correct 414 ms 782512 KB Output is correct
48 Correct 405 ms 782420 KB Output is correct
49 Correct 178 ms 744784 KB Output is correct
50 Correct 173 ms 744848 KB Output is correct
51 Correct 179 ms 744800 KB Output is correct
52 Correct 168 ms 742580 KB Output is correct
53 Correct 180 ms 744784 KB Output is correct
54 Correct 177 ms 744792 KB Output is correct
55 Correct 176 ms 744748 KB Output is correct
56 Correct 185 ms 744736 KB Output is correct
57 Correct 181 ms 744852 KB Output is correct
58 Correct 174 ms 740540 KB Output is correct
59 Correct 175 ms 740436 KB Output is correct
60 Correct 167 ms 744648 KB Output is correct
61 Correct 1290 ms 878420 KB Output is correct
62 Correct 2789 ms 1024488 KB Output is correct
63 Correct 2825 ms 1025472 KB Output is correct
64 Correct 2867 ms 1025740 KB Output is correct
65 Correct 773 ms 877904 KB Output is correct
66 Correct 1298 ms 992020 KB Output is correct
67 Correct 1367 ms 1005648 KB Output is correct
68 Correct 169 ms 738388 KB Output is correct
69 Correct 166 ms 740412 KB Output is correct
70 Correct 171 ms 744720 KB Output is correct
71 Correct 171 ms 744672 KB Output is correct
72 Correct 176 ms 742484 KB Output is correct
73 Runtime error 1178 ms 1048576 KB Execution killed with signal 9
74 Halted 0 ms 0 KB -