#include"rect.h"
#include<algorithm>
#include<unordered_set>
#include<set>
#include<iostream>
using namespace std;
typedef long long ll;
int gap_right[2500][2500];
int gap_down[2500][2500];
int gap_left[2500][2500];
int gap_up[2500][2500];
int arr[2500][2500];
int w,h;
void process_column(int x){
vector<pair<int,int>>vals;
for(int y=0;y<h;y++){
while(!vals.empty()&&vals.back().first<arr[x][y])
vals.pop_back();
gap_up[x][y]=-1;
if(!vals.empty())
gap_up[x][y]=vals.back().second;
vals.emplace_back(arr[x][y],y);
}
vals.clear();
for(int y=h-1;y>=0;y--){
while(!vals.empty()&&vals.back().first<arr[x][y])
vals.pop_back();
gap_down[x][y]=2500;
if(!vals.empty())
gap_down[x][y]=vals.back().second;
vals.emplace_back(arr[x][y],y);
}
}
void process_row(int y){
vector<pair<int,int>>vals;
for(int x=0;x<w;x++){
while(!vals.empty()&&vals.back().first<arr[x][y])
vals.pop_back();
gap_left[x][y]=-1;
if(!vals.empty())
gap_left[x][y]=vals.back().second;
vals.emplace_back(arr[x][y],x);
}
vals.clear();
for(int x=w;x>=0;x--){
while(!vals.empty()&&vals.back().first<arr[x][y])
vals.pop_back();
gap_right[x][y]=2500;
if(!vals.empty())
gap_right[x][y]=vals.back().second;
vals.emplace_back(arr[x][y],x);
}
}
int check1(int x1,int x2,int y){
if(x1==-1||x2==2500||x1==x2-1)
return 0;
int y1=y-1;
int y2=2500;
for(int x=x1+1;x<x2;x++){
y2=min(y2,gap_down[x][y1]);
}
if(y2>=h)
return 0;
if(y1==y2-1)
return 0;
for(int x=x1+1;x<x2;x++)
if((gap_down[x][y1]!=y2&&gap_up[x][y2]!=y1)||gap_down[x][y1]<y2||gap_up[x][y2]>y1)
return 0;
for(int y=y1+1;y<y2;y++)
if((gap_right[x1][y]!=x2&&gap_left[x2][y]!=x1)||gap_right[x1][y]<x2||gap_left[x2][y]>x1)
return 0;
//cout<<"("<<x1<<" "<<y1<<") ("<<x2<<" "<<y2<<")\n";
return 1;
}
int check2(int x1,int x2,int y){
if(x1==-1||x2==2500||x1==x2-1)
return 0;
int y2=y+1;
int y1=-1;
for(int x=x1+1;x<x2;x++){
y1=max(y1,gap_up[x][y2]);
}
if(y1==-1)
return 0;
if(y1==y2-1)
return 0;
for(int x=x1+1;x<x2;x++)
if((gap_down[x][y1]!=y2&&gap_up[x][y2]!=y1)||gap_down[x][y1]<y2||gap_up[x][y2]>y1||gap_down[x][y1]==y2)
return 0;
for(int y=y1+1;y<y2;y++)
if((gap_right[x1][y]!=x2&&gap_left[x2][y]!=x1)||gap_right[x1][y]<x2||gap_left[x2][y]>x1)
return 0;
//cout<<"("<<x1<<" "<<y1<<") ("<<x2<<" "<<y2<<")\n";
return 1;
}
int check(int x1,int x2,int y){
return check1(x1,x2,y)+check2(x1,x2,y);
}
ll count_rectangles(vector<vector<int>>a_){
h=(int)a_.size();
w=(int)a_[0].size();
for(int x=0;x<w;x++){
for(int y=0;y<h;y++){
arr[x][y]=a_[y][x];
}
}
for(int x=0;x<w;x++)
process_column(x);
for(int y=0;y<h;y++)
process_row(y);
/*for(int y=0;y<h;y++){
for(int x=0;x<w;x++)
cout<<gap_left[x][y]<<" ";
cout<<"\n";
}*/
ll res=0;
for(int x=0;x<w;x++)
for(int y=1;y<h-1;y++){
res+=check(x,gap_right[x][y],y);
//cout<<gap_left[x][y+1]<<" "<<x<<" "<<y<<"\n";
if(arr[gap_left[x][y]][y]!=arr[x][y])
res+=check(gap_left[x][y],x,y);
}
return res;
}
Compilation message
rect.cpp: In function 'll count_rectangles(std::vector<std::vector<int> >)':
rect.cpp:146:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
146 | for(int x=0;x<w;x++)
| ^~~
rect.cpp:154:2: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
154 | return res;
| ^~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
8536 KB |
Output is correct |
2 |
Correct |
2 ms |
10584 KB |
Output is correct |
3 |
Correct |
1 ms |
10588 KB |
Output is correct |
4 |
Correct |
1 ms |
10588 KB |
Output is correct |
5 |
Correct |
1 ms |
10588 KB |
Output is correct |
6 |
Correct |
1 ms |
10588 KB |
Output is correct |
7 |
Correct |
1 ms |
8552 KB |
Output is correct |
8 |
Correct |
1 ms |
10588 KB |
Output is correct |
9 |
Correct |
2 ms |
10588 KB |
Output is correct |
10 |
Correct |
1 ms |
10588 KB |
Output is correct |
11 |
Correct |
2 ms |
10588 KB |
Output is correct |
12 |
Correct |
1 ms |
10588 KB |
Output is correct |
13 |
Correct |
1 ms |
8540 KB |
Output is correct |
14 |
Correct |
1 ms |
8540 KB |
Output is correct |
15 |
Correct |
1 ms |
8540 KB |
Output is correct |
16 |
Correct |
1 ms |
8540 KB |
Output is correct |
17 |
Correct |
1 ms |
8540 KB |
Output is correct |
18 |
Correct |
1 ms |
8540 KB |
Output is correct |
19 |
Correct |
1 ms |
10588 KB |
Output is correct |
20 |
Correct |
1 ms |
8540 KB |
Output is correct |
21 |
Correct |
1 ms |
8540 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
8536 KB |
Output is correct |
2 |
Correct |
2 ms |
10584 KB |
Output is correct |
3 |
Correct |
1 ms |
10588 KB |
Output is correct |
4 |
Correct |
1 ms |
10588 KB |
Output is correct |
5 |
Correct |
1 ms |
10588 KB |
Output is correct |
6 |
Correct |
1 ms |
10588 KB |
Output is correct |
7 |
Correct |
1 ms |
8552 KB |
Output is correct |
8 |
Correct |
1 ms |
10588 KB |
Output is correct |
9 |
Correct |
2 ms |
10588 KB |
Output is correct |
10 |
Correct |
1 ms |
10588 KB |
Output is correct |
11 |
Correct |
2 ms |
10588 KB |
Output is correct |
12 |
Correct |
1 ms |
10588 KB |
Output is correct |
13 |
Correct |
1 ms |
8540 KB |
Output is correct |
14 |
Correct |
1 ms |
8540 KB |
Output is correct |
15 |
Correct |
1 ms |
8540 KB |
Output is correct |
16 |
Correct |
1 ms |
8540 KB |
Output is correct |
17 |
Correct |
1 ms |
8540 KB |
Output is correct |
18 |
Correct |
1 ms |
8540 KB |
Output is correct |
19 |
Correct |
1 ms |
10588 KB |
Output is correct |
20 |
Correct |
1 ms |
8540 KB |
Output is correct |
21 |
Correct |
1 ms |
8540 KB |
Output is correct |
22 |
Correct |
3 ms |
16988 KB |
Output is correct |
23 |
Correct |
3 ms |
16988 KB |
Output is correct |
24 |
Correct |
3 ms |
16988 KB |
Output is correct |
25 |
Correct |
2 ms |
16988 KB |
Output is correct |
26 |
Correct |
3 ms |
16732 KB |
Output is correct |
27 |
Correct |
3 ms |
16988 KB |
Output is correct |
28 |
Correct |
3 ms |
16988 KB |
Output is correct |
29 |
Correct |
2 ms |
12636 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
8536 KB |
Output is correct |
2 |
Correct |
2 ms |
10584 KB |
Output is correct |
3 |
Correct |
1 ms |
10588 KB |
Output is correct |
4 |
Correct |
1 ms |
10588 KB |
Output is correct |
5 |
Correct |
1 ms |
10588 KB |
Output is correct |
6 |
Correct |
1 ms |
10588 KB |
Output is correct |
7 |
Correct |
1 ms |
8552 KB |
Output is correct |
8 |
Correct |
1 ms |
10588 KB |
Output is correct |
9 |
Correct |
2 ms |
10588 KB |
Output is correct |
10 |
Correct |
1 ms |
10588 KB |
Output is correct |
11 |
Correct |
2 ms |
10588 KB |
Output is correct |
12 |
Correct |
1 ms |
10588 KB |
Output is correct |
13 |
Correct |
1 ms |
8540 KB |
Output is correct |
14 |
Correct |
1 ms |
8540 KB |
Output is correct |
15 |
Correct |
1 ms |
8540 KB |
Output is correct |
16 |
Correct |
1 ms |
8540 KB |
Output is correct |
17 |
Correct |
3 ms |
16988 KB |
Output is correct |
18 |
Correct |
3 ms |
16988 KB |
Output is correct |
19 |
Correct |
3 ms |
16988 KB |
Output is correct |
20 |
Correct |
2 ms |
16988 KB |
Output is correct |
21 |
Correct |
3 ms |
16732 KB |
Output is correct |
22 |
Correct |
3 ms |
16988 KB |
Output is correct |
23 |
Correct |
3 ms |
16988 KB |
Output is correct |
24 |
Correct |
2 ms |
12636 KB |
Output is correct |
25 |
Correct |
1 ms |
8540 KB |
Output is correct |
26 |
Correct |
1 ms |
8540 KB |
Output is correct |
27 |
Correct |
1 ms |
10588 KB |
Output is correct |
28 |
Correct |
1 ms |
8540 KB |
Output is correct |
29 |
Correct |
1 ms |
8540 KB |
Output is correct |
30 |
Correct |
17 ms |
19292 KB |
Output is correct |
31 |
Correct |
16 ms |
19288 KB |
Output is correct |
32 |
Correct |
17 ms |
19292 KB |
Output is correct |
33 |
Correct |
5 ms |
19292 KB |
Output is correct |
34 |
Correct |
6 ms |
19288 KB |
Output is correct |
35 |
Correct |
7 ms |
19292 KB |
Output is correct |
36 |
Correct |
8 ms |
19292 KB |
Output is correct |
37 |
Correct |
7 ms |
19292 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
8536 KB |
Output is correct |
2 |
Correct |
2 ms |
10584 KB |
Output is correct |
3 |
Correct |
1 ms |
10588 KB |
Output is correct |
4 |
Correct |
1 ms |
10588 KB |
Output is correct |
5 |
Correct |
1 ms |
10588 KB |
Output is correct |
6 |
Correct |
1 ms |
10588 KB |
Output is correct |
7 |
Correct |
1 ms |
8552 KB |
Output is correct |
8 |
Correct |
1 ms |
10588 KB |
Output is correct |
9 |
Correct |
2 ms |
10588 KB |
Output is correct |
10 |
Correct |
1 ms |
10588 KB |
Output is correct |
11 |
Correct |
2 ms |
10588 KB |
Output is correct |
12 |
Correct |
1 ms |
10588 KB |
Output is correct |
13 |
Correct |
1 ms |
8540 KB |
Output is correct |
14 |
Correct |
1 ms |
8540 KB |
Output is correct |
15 |
Correct |
1 ms |
8540 KB |
Output is correct |
16 |
Correct |
1 ms |
8540 KB |
Output is correct |
17 |
Correct |
3 ms |
16988 KB |
Output is correct |
18 |
Correct |
3 ms |
16988 KB |
Output is correct |
19 |
Correct |
3 ms |
16988 KB |
Output is correct |
20 |
Correct |
2 ms |
16988 KB |
Output is correct |
21 |
Correct |
3 ms |
16732 KB |
Output is correct |
22 |
Correct |
3 ms |
16988 KB |
Output is correct |
23 |
Correct |
3 ms |
16988 KB |
Output is correct |
24 |
Correct |
2 ms |
12636 KB |
Output is correct |
25 |
Correct |
17 ms |
19292 KB |
Output is correct |
26 |
Correct |
16 ms |
19288 KB |
Output is correct |
27 |
Correct |
17 ms |
19292 KB |
Output is correct |
28 |
Correct |
5 ms |
19292 KB |
Output is correct |
29 |
Correct |
6 ms |
19288 KB |
Output is correct |
30 |
Correct |
7 ms |
19292 KB |
Output is correct |
31 |
Correct |
8 ms |
19292 KB |
Output is correct |
32 |
Correct |
7 ms |
19292 KB |
Output is correct |
33 |
Correct |
1 ms |
8540 KB |
Output is correct |
34 |
Correct |
1 ms |
8540 KB |
Output is correct |
35 |
Correct |
1 ms |
10588 KB |
Output is correct |
36 |
Correct |
1 ms |
8540 KB |
Output is correct |
37 |
Correct |
1 ms |
8540 KB |
Output is correct |
38 |
Correct |
133 ms |
51648 KB |
Output is correct |
39 |
Correct |
144 ms |
51636 KB |
Output is correct |
40 |
Correct |
135 ms |
51392 KB |
Output is correct |
41 |
Correct |
133 ms |
51796 KB |
Output is correct |
42 |
Correct |
629 ms |
55064 KB |
Output is correct |
43 |
Correct |
617 ms |
55064 KB |
Output is correct |
44 |
Correct |
663 ms |
55184 KB |
Output is correct |
45 |
Correct |
570 ms |
54872 KB |
Output is correct |
46 |
Correct |
33 ms |
52560 KB |
Output is correct |
47 |
Correct |
41 ms |
52572 KB |
Output is correct |
48 |
Correct |
63 ms |
53400 KB |
Output is correct |
49 |
Correct |
73 ms |
55320 KB |
Output is correct |
50 |
Correct |
36 ms |
33000 KB |
Output is correct |
51 |
Correct |
36 ms |
51280 KB |
Output is correct |
52 |
Correct |
63 ms |
54360 KB |
Output is correct |
53 |
Correct |
67 ms |
55356 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
22 ms |
121944 KB |
Output is correct |
2 |
Correct |
19 ms |
113244 KB |
Output is correct |
3 |
Correct |
12 ms |
121948 KB |
Output is correct |
4 |
Correct |
1 ms |
8540 KB |
Output is correct |
5 |
Correct |
14 ms |
122052 KB |
Output is correct |
6 |
Correct |
13 ms |
121948 KB |
Output is correct |
7 |
Correct |
13 ms |
122076 KB |
Output is correct |
8 |
Correct |
13 ms |
121948 KB |
Output is correct |
9 |
Correct |
15 ms |
122064 KB |
Output is correct |
10 |
Correct |
13 ms |
121948 KB |
Output is correct |
11 |
Correct |
13 ms |
121960 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
8540 KB |
Output is correct |
2 |
Correct |
1 ms |
8540 KB |
Output is correct |
3 |
Correct |
1 ms |
10588 KB |
Output is correct |
4 |
Correct |
1 ms |
8540 KB |
Output is correct |
5 |
Correct |
1 ms |
8540 KB |
Output is correct |
6 |
Correct |
1 ms |
8536 KB |
Output is correct |
7 |
Correct |
171 ms |
144176 KB |
Output is correct |
8 |
Correct |
375 ms |
171624 KB |
Output is correct |
9 |
Correct |
366 ms |
183948 KB |
Output is correct |
10 |
Correct |
371 ms |
184148 KB |
Output is correct |
11 |
Correct |
109 ms |
152688 KB |
Output is correct |
12 |
Correct |
197 ms |
179360 KB |
Output is correct |
13 |
Correct |
233 ms |
183888 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
8536 KB |
Output is correct |
2 |
Correct |
2 ms |
10584 KB |
Output is correct |
3 |
Correct |
1 ms |
10588 KB |
Output is correct |
4 |
Correct |
1 ms |
10588 KB |
Output is correct |
5 |
Correct |
1 ms |
10588 KB |
Output is correct |
6 |
Correct |
1 ms |
10588 KB |
Output is correct |
7 |
Correct |
1 ms |
8552 KB |
Output is correct |
8 |
Correct |
1 ms |
10588 KB |
Output is correct |
9 |
Correct |
2 ms |
10588 KB |
Output is correct |
10 |
Correct |
1 ms |
10588 KB |
Output is correct |
11 |
Correct |
2 ms |
10588 KB |
Output is correct |
12 |
Correct |
1 ms |
10588 KB |
Output is correct |
13 |
Correct |
1 ms |
8540 KB |
Output is correct |
14 |
Correct |
1 ms |
8540 KB |
Output is correct |
15 |
Correct |
1 ms |
8540 KB |
Output is correct |
16 |
Correct |
1 ms |
8540 KB |
Output is correct |
17 |
Correct |
3 ms |
16988 KB |
Output is correct |
18 |
Correct |
3 ms |
16988 KB |
Output is correct |
19 |
Correct |
3 ms |
16988 KB |
Output is correct |
20 |
Correct |
2 ms |
16988 KB |
Output is correct |
21 |
Correct |
3 ms |
16732 KB |
Output is correct |
22 |
Correct |
3 ms |
16988 KB |
Output is correct |
23 |
Correct |
3 ms |
16988 KB |
Output is correct |
24 |
Correct |
2 ms |
12636 KB |
Output is correct |
25 |
Correct |
17 ms |
19292 KB |
Output is correct |
26 |
Correct |
16 ms |
19288 KB |
Output is correct |
27 |
Correct |
17 ms |
19292 KB |
Output is correct |
28 |
Correct |
5 ms |
19292 KB |
Output is correct |
29 |
Correct |
6 ms |
19288 KB |
Output is correct |
30 |
Correct |
7 ms |
19292 KB |
Output is correct |
31 |
Correct |
8 ms |
19292 KB |
Output is correct |
32 |
Correct |
7 ms |
19292 KB |
Output is correct |
33 |
Correct |
133 ms |
51648 KB |
Output is correct |
34 |
Correct |
144 ms |
51636 KB |
Output is correct |
35 |
Correct |
135 ms |
51392 KB |
Output is correct |
36 |
Correct |
133 ms |
51796 KB |
Output is correct |
37 |
Correct |
629 ms |
55064 KB |
Output is correct |
38 |
Correct |
617 ms |
55064 KB |
Output is correct |
39 |
Correct |
663 ms |
55184 KB |
Output is correct |
40 |
Correct |
570 ms |
54872 KB |
Output is correct |
41 |
Correct |
33 ms |
52560 KB |
Output is correct |
42 |
Correct |
41 ms |
52572 KB |
Output is correct |
43 |
Correct |
63 ms |
53400 KB |
Output is correct |
44 |
Correct |
73 ms |
55320 KB |
Output is correct |
45 |
Correct |
36 ms |
33000 KB |
Output is correct |
46 |
Correct |
36 ms |
51280 KB |
Output is correct |
47 |
Correct |
63 ms |
54360 KB |
Output is correct |
48 |
Correct |
67 ms |
55356 KB |
Output is correct |
49 |
Correct |
22 ms |
121944 KB |
Output is correct |
50 |
Correct |
19 ms |
113244 KB |
Output is correct |
51 |
Correct |
12 ms |
121948 KB |
Output is correct |
52 |
Correct |
1 ms |
8540 KB |
Output is correct |
53 |
Correct |
14 ms |
122052 KB |
Output is correct |
54 |
Correct |
13 ms |
121948 KB |
Output is correct |
55 |
Correct |
13 ms |
122076 KB |
Output is correct |
56 |
Correct |
13 ms |
121948 KB |
Output is correct |
57 |
Correct |
15 ms |
122064 KB |
Output is correct |
58 |
Correct |
13 ms |
121948 KB |
Output is correct |
59 |
Correct |
13 ms |
121960 KB |
Output is correct |
60 |
Correct |
1 ms |
8536 KB |
Output is correct |
61 |
Correct |
171 ms |
144176 KB |
Output is correct |
62 |
Correct |
375 ms |
171624 KB |
Output is correct |
63 |
Correct |
366 ms |
183948 KB |
Output is correct |
64 |
Correct |
371 ms |
184148 KB |
Output is correct |
65 |
Correct |
109 ms |
152688 KB |
Output is correct |
66 |
Correct |
197 ms |
179360 KB |
Output is correct |
67 |
Correct |
233 ms |
183888 KB |
Output is correct |
68 |
Correct |
1 ms |
8540 KB |
Output is correct |
69 |
Correct |
1 ms |
8540 KB |
Output is correct |
70 |
Correct |
1 ms |
10588 KB |
Output is correct |
71 |
Correct |
1 ms |
8540 KB |
Output is correct |
72 |
Correct |
1 ms |
8540 KB |
Output is correct |
73 |
Execution timed out |
5070 ms |
218508 KB |
Time limit exceeded |
74 |
Halted |
0 ms |
0 KB |
- |