#include "rect.h"
#pragma once
#include <vector>
#include <algorithm>
#include <map>
using namespace std;
int aib[2505][2505];
int n,m;
void update_aib(int x,int y,int val){
x++;
y++;
for(int i = x;i;i -= (-i) & i){
for(int j = y;j;j -= (-j) & j){
aib[i][j] += val;
}
}
}
int query_aib(int x,int y){
x++;
y++;
int ans = 0;
for(int i = x;i <= m;i += (-i) & i){
for(int j = y;j <= n;j += (-j) & j){
ans += aib[i][j];
}
}
return ans;
}
long long count_rectangles(std::vector<std::vector<int> > a) {
map<pair<int,int>,int> h_heights;
map<pair<int,int>,int> v_heights;
n = a.size();
m = a[0].size();
long long ans = 0;
vector<vector<int> > v_stack(m,vector<int>(0));
vector<vector<vector<int> > > tervals(n,vector<vector<int> >(m,vector<int>(0)));
for(int i = 0;i < n;i++){
vector<int> h_stack;
v_heights.clear();
for(int j = 0;j < m;j++){
map<pair<int,int>,int> tmp;
while(v_stack[j].size() > 0 && a[v_stack[j].back()][j] < a[i][j]){
tmp[{v_stack[j].back(),i}] = 1 + v_heights[{v_stack[j].back(),i}];
v_stack[j].pop_back();
}
if(v_stack[j].size() > 0){
tmp[{v_stack[j].back(),i}] = 1 + v_heights[{v_stack[j].back(),i}];
}
while(v_stack[j].size() > 0 && a[v_stack[j].back()][j] <= a[i][j]){
v_stack[j].pop_back();
}
v_stack[j].push_back(i);
v_heights = tmp;
if(i > 0 && j < m - 1){
for(auto it:tervals[i - 1][j + 1]){
if(it == j){
continue;
}
update_aib(it,h_heights[{it,j + 1}],1);
}
for(auto it:v_heights){
if(it.first.first == it.first.second - 1){
continue;
}
ans += query_aib(max(0,j - it.second),it.first.second - it.first.first - 1);
}
for(auto it:tervals[i - 1][j + 1]){
if(it == j){
continue;
}
update_aib(it,h_heights[{it,j + 1}],-1);
}
}
}
map<pair<int,int>,int> tmp;
for(int j = 0;j < m;j++){
while(h_stack.size() > 0 && a[i][h_stack.back()] < a[i][j]){
tmp[{h_stack.back(),j}] = 1 + h_heights[{h_stack.back(),j}];
tervals[i][j].push_back(h_stack.back());
h_stack.pop_back();
}
if(h_stack.size() > 0){
tmp[{h_stack.back(),j}] = 1 + h_heights[{h_stack.back(),j}];
tervals[i][j].push_back(h_stack.back());
}
while(h_stack.size() > 0 && a[i][h_stack.back()] <= a[i][j]){
h_stack.pop_back();
}
h_stack.push_back(j);
}
h_heights = tmp;
}
return ans;
}
Compilation message
rect.cpp:3:9: warning: #pragma once in main file
#pragma once
^~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
3 ms |
504 KB |
Output is correct |
3 |
Correct |
3 ms |
504 KB |
Output is correct |
4 |
Correct |
3 ms |
484 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
3 ms |
504 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
504 KB |
Output is correct |
9 |
Correct |
3 ms |
632 KB |
Output is correct |
10 |
Correct |
3 ms |
504 KB |
Output is correct |
11 |
Correct |
3 ms |
504 KB |
Output is correct |
12 |
Correct |
3 ms |
504 KB |
Output is correct |
13 |
Correct |
2 ms |
380 KB |
Output is correct |
14 |
Correct |
2 ms |
380 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
256 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
3 ms |
504 KB |
Output is correct |
20 |
Correct |
2 ms |
376 KB |
Output is correct |
21 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
3 ms |
504 KB |
Output is correct |
3 |
Correct |
3 ms |
504 KB |
Output is correct |
4 |
Correct |
3 ms |
484 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
3 ms |
504 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
504 KB |
Output is correct |
9 |
Correct |
3 ms |
632 KB |
Output is correct |
10 |
Correct |
3 ms |
504 KB |
Output is correct |
11 |
Correct |
3 ms |
504 KB |
Output is correct |
12 |
Correct |
3 ms |
504 KB |
Output is correct |
13 |
Correct |
2 ms |
380 KB |
Output is correct |
14 |
Correct |
2 ms |
380 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
256 KB |
Output is correct |
17 |
Correct |
7 ms |
1144 KB |
Output is correct |
18 |
Correct |
7 ms |
1144 KB |
Output is correct |
19 |
Correct |
7 ms |
1144 KB |
Output is correct |
20 |
Correct |
7 ms |
1016 KB |
Output is correct |
21 |
Correct |
10 ms |
1016 KB |
Output is correct |
22 |
Correct |
11 ms |
1016 KB |
Output is correct |
23 |
Correct |
10 ms |
1144 KB |
Output is correct |
24 |
Correct |
6 ms |
632 KB |
Output is correct |
25 |
Correct |
2 ms |
376 KB |
Output is correct |
26 |
Correct |
2 ms |
376 KB |
Output is correct |
27 |
Correct |
3 ms |
504 KB |
Output is correct |
28 |
Correct |
2 ms |
376 KB |
Output is correct |
29 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
3 ms |
504 KB |
Output is correct |
3 |
Correct |
3 ms |
504 KB |
Output is correct |
4 |
Correct |
3 ms |
484 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
3 ms |
504 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
504 KB |
Output is correct |
9 |
Correct |
3 ms |
632 KB |
Output is correct |
10 |
Correct |
3 ms |
504 KB |
Output is correct |
11 |
Correct |
3 ms |
504 KB |
Output is correct |
12 |
Correct |
3 ms |
504 KB |
Output is correct |
13 |
Correct |
2 ms |
380 KB |
Output is correct |
14 |
Correct |
2 ms |
380 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
256 KB |
Output is correct |
17 |
Correct |
7 ms |
1144 KB |
Output is correct |
18 |
Correct |
7 ms |
1144 KB |
Output is correct |
19 |
Correct |
7 ms |
1144 KB |
Output is correct |
20 |
Correct |
7 ms |
1016 KB |
Output is correct |
21 |
Correct |
10 ms |
1016 KB |
Output is correct |
22 |
Correct |
11 ms |
1016 KB |
Output is correct |
23 |
Correct |
10 ms |
1144 KB |
Output is correct |
24 |
Correct |
6 ms |
632 KB |
Output is correct |
25 |
Correct |
47 ms |
4472 KB |
Output is correct |
26 |
Correct |
46 ms |
4472 KB |
Output is correct |
27 |
Correct |
47 ms |
4600 KB |
Output is correct |
28 |
Correct |
36 ms |
3832 KB |
Output is correct |
29 |
Correct |
57 ms |
3832 KB |
Output is correct |
30 |
Correct |
60 ms |
4088 KB |
Output is correct |
31 |
Correct |
56 ms |
3968 KB |
Output is correct |
32 |
Correct |
55 ms |
4088 KB |
Output is correct |
33 |
Correct |
2 ms |
376 KB |
Output is correct |
34 |
Correct |
2 ms |
376 KB |
Output is correct |
35 |
Correct |
3 ms |
504 KB |
Output is correct |
36 |
Correct |
2 ms |
376 KB |
Output is correct |
37 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
3 ms |
504 KB |
Output is correct |
3 |
Correct |
3 ms |
504 KB |
Output is correct |
4 |
Correct |
3 ms |
484 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
3 ms |
504 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
504 KB |
Output is correct |
9 |
Correct |
3 ms |
632 KB |
Output is correct |
10 |
Correct |
3 ms |
504 KB |
Output is correct |
11 |
Correct |
3 ms |
504 KB |
Output is correct |
12 |
Correct |
3 ms |
504 KB |
Output is correct |
13 |
Correct |
2 ms |
380 KB |
Output is correct |
14 |
Correct |
2 ms |
380 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
256 KB |
Output is correct |
17 |
Correct |
7 ms |
1144 KB |
Output is correct |
18 |
Correct |
7 ms |
1144 KB |
Output is correct |
19 |
Correct |
7 ms |
1144 KB |
Output is correct |
20 |
Correct |
7 ms |
1016 KB |
Output is correct |
21 |
Correct |
10 ms |
1016 KB |
Output is correct |
22 |
Correct |
11 ms |
1016 KB |
Output is correct |
23 |
Correct |
10 ms |
1144 KB |
Output is correct |
24 |
Correct |
6 ms |
632 KB |
Output is correct |
25 |
Correct |
47 ms |
4472 KB |
Output is correct |
26 |
Correct |
46 ms |
4472 KB |
Output is correct |
27 |
Correct |
47 ms |
4600 KB |
Output is correct |
28 |
Correct |
36 ms |
3832 KB |
Output is correct |
29 |
Correct |
57 ms |
3832 KB |
Output is correct |
30 |
Correct |
60 ms |
4088 KB |
Output is correct |
31 |
Correct |
56 ms |
3968 KB |
Output is correct |
32 |
Correct |
55 ms |
4088 KB |
Output is correct |
33 |
Correct |
520 ms |
40060 KB |
Output is correct |
34 |
Correct |
517 ms |
38764 KB |
Output is correct |
35 |
Correct |
505 ms |
40164 KB |
Output is correct |
36 |
Correct |
500 ms |
38648 KB |
Output is correct |
37 |
Correct |
688 ms |
44872 KB |
Output is correct |
38 |
Correct |
692 ms |
45100 KB |
Output is correct |
39 |
Correct |
697 ms |
45304 KB |
Output is correct |
40 |
Correct |
647 ms |
42744 KB |
Output is correct |
41 |
Correct |
382 ms |
35104 KB |
Output is correct |
42 |
Correct |
476 ms |
35064 KB |
Output is correct |
43 |
Correct |
807 ms |
36616 KB |
Output is correct |
44 |
Correct |
817 ms |
38220 KB |
Output is correct |
45 |
Correct |
395 ms |
19324 KB |
Output is correct |
46 |
Correct |
414 ms |
20856 KB |
Output is correct |
47 |
Correct |
759 ms |
37616 KB |
Output is correct |
48 |
Correct |
778 ms |
38320 KB |
Output is correct |
49 |
Correct |
2 ms |
376 KB |
Output is correct |
50 |
Correct |
2 ms |
376 KB |
Output is correct |
51 |
Correct |
3 ms |
504 KB |
Output is correct |
52 |
Correct |
2 ms |
376 KB |
Output is correct |
53 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
19 ms |
11640 KB |
Output is correct |
2 |
Correct |
17 ms |
9976 KB |
Output is correct |
3 |
Correct |
6 ms |
1272 KB |
Output is correct |
4 |
Correct |
2 ms |
256 KB |
Output is correct |
5 |
Correct |
19 ms |
10488 KB |
Output is correct |
6 |
Correct |
19 ms |
10360 KB |
Output is correct |
7 |
Correct |
40 ms |
10492 KB |
Output is correct |
8 |
Correct |
20 ms |
10104 KB |
Output is correct |
9 |
Correct |
20 ms |
10108 KB |
Output is correct |
10 |
Correct |
5 ms |
1400 KB |
Output is correct |
11 |
Correct |
14 ms |
8824 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2687 ms |
191824 KB |
Output is correct |
3 |
Execution timed out |
5122 ms |
392148 KB |
Time limit exceeded |
4 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
3 ms |
504 KB |
Output is correct |
3 |
Correct |
3 ms |
504 KB |
Output is correct |
4 |
Correct |
3 ms |
484 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
3 ms |
504 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
504 KB |
Output is correct |
9 |
Correct |
3 ms |
632 KB |
Output is correct |
10 |
Correct |
3 ms |
504 KB |
Output is correct |
11 |
Correct |
3 ms |
504 KB |
Output is correct |
12 |
Correct |
3 ms |
504 KB |
Output is correct |
13 |
Correct |
2 ms |
380 KB |
Output is correct |
14 |
Correct |
2 ms |
380 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
256 KB |
Output is correct |
17 |
Correct |
7 ms |
1144 KB |
Output is correct |
18 |
Correct |
7 ms |
1144 KB |
Output is correct |
19 |
Correct |
7 ms |
1144 KB |
Output is correct |
20 |
Correct |
7 ms |
1016 KB |
Output is correct |
21 |
Correct |
10 ms |
1016 KB |
Output is correct |
22 |
Correct |
11 ms |
1016 KB |
Output is correct |
23 |
Correct |
10 ms |
1144 KB |
Output is correct |
24 |
Correct |
6 ms |
632 KB |
Output is correct |
25 |
Correct |
47 ms |
4472 KB |
Output is correct |
26 |
Correct |
46 ms |
4472 KB |
Output is correct |
27 |
Correct |
47 ms |
4600 KB |
Output is correct |
28 |
Correct |
36 ms |
3832 KB |
Output is correct |
29 |
Correct |
57 ms |
3832 KB |
Output is correct |
30 |
Correct |
60 ms |
4088 KB |
Output is correct |
31 |
Correct |
56 ms |
3968 KB |
Output is correct |
32 |
Correct |
55 ms |
4088 KB |
Output is correct |
33 |
Correct |
520 ms |
40060 KB |
Output is correct |
34 |
Correct |
517 ms |
38764 KB |
Output is correct |
35 |
Correct |
505 ms |
40164 KB |
Output is correct |
36 |
Correct |
500 ms |
38648 KB |
Output is correct |
37 |
Correct |
688 ms |
44872 KB |
Output is correct |
38 |
Correct |
692 ms |
45100 KB |
Output is correct |
39 |
Correct |
697 ms |
45304 KB |
Output is correct |
40 |
Correct |
647 ms |
42744 KB |
Output is correct |
41 |
Correct |
382 ms |
35104 KB |
Output is correct |
42 |
Correct |
476 ms |
35064 KB |
Output is correct |
43 |
Correct |
807 ms |
36616 KB |
Output is correct |
44 |
Correct |
817 ms |
38220 KB |
Output is correct |
45 |
Correct |
395 ms |
19324 KB |
Output is correct |
46 |
Correct |
414 ms |
20856 KB |
Output is correct |
47 |
Correct |
759 ms |
37616 KB |
Output is correct |
48 |
Correct |
778 ms |
38320 KB |
Output is correct |
49 |
Correct |
19 ms |
11640 KB |
Output is correct |
50 |
Correct |
17 ms |
9976 KB |
Output is correct |
51 |
Correct |
6 ms |
1272 KB |
Output is correct |
52 |
Correct |
2 ms |
256 KB |
Output is correct |
53 |
Correct |
19 ms |
10488 KB |
Output is correct |
54 |
Correct |
19 ms |
10360 KB |
Output is correct |
55 |
Correct |
40 ms |
10492 KB |
Output is correct |
56 |
Correct |
20 ms |
10104 KB |
Output is correct |
57 |
Correct |
20 ms |
10108 KB |
Output is correct |
58 |
Correct |
5 ms |
1400 KB |
Output is correct |
59 |
Correct |
14 ms |
8824 KB |
Output is correct |
60 |
Correct |
2 ms |
376 KB |
Output is correct |
61 |
Correct |
2687 ms |
191824 KB |
Output is correct |
62 |
Execution timed out |
5122 ms |
392148 KB |
Time limit exceeded |
63 |
Halted |
0 ms |
0 KB |
- |