#include "bits/stdc++.h"
#include "rect.h"
using namespace std;
const int maxn = 2505;
struct rect {
int i, j;
int l, r;
rect (int i, int j, int l, int r) : i(i), j(j), l(l), r(r) {}
rect () {}
};
vector <pair <int, int>> ver[maxn][maxn], hor[maxn][maxn];
vector <rect> getLines(vector<std::vector<int>> a) {
int n = a.size();
int m = a.front().size();
vector <int> v[m];
vector <rect> vert;
for(int i = 0; i < n; i++) {
set <int> last;
vector <int> arr (n, -1);
for(int j = 0; j < m; j++) {
set <int> aux;
for(int k = int(v[j].size()) - 1; k >= 0; k--) {
aux.insert(v[j][k]);
if(a[v[j][k]][j] >= a[i][j]) break;
}
while(!v[j].empty() && a[v[j].back()][j] <= a[i][j]) {
v[j].pop_back();
}
v[j].push_back(i);
for(int k : last) {
if(aux.find(k) == aux.end()) {
if(k < i - 1) vert.emplace_back(k, i, arr[k], j - 1);
arr[k] = -1;
}
}
for(int k : aux) {
if(arr[k] == -1) arr[k] = j;
}
last = aux;
}
for(int k : last) {
if(k < i - 1) vert.emplace_back(k, i, arr[k], m - 1);
}
}
return vert;
}
vector <vector <int>> rotate(vector <vector <int>> a) {
int n = a.size();
int m = a.front().size();
vector <vector <int>> b (m, vector <int> (n, 0));
for(int i = 0; i < m; i++) {
for(int j = 0; j < n; j++) {
b[i][j] = a[j][i];
}
}
return b;
}
/*
0 2 1 2
2 4 0 1
1 4 4 4
*/
long long solve(int i, int j) {
long long ans = 0;
for(auto x : ver[i][j]) {
for(auto y : hor[i][j]) {
if(y.first >= x.first && y.second <= x.second) ++ans;
}
}
/* for(auto x : hor[i][j]) {
cout << x.first << " " << x.second << endl;
}
cout << i << " " << j << " " << ans << endl;
*/
return ans;
}
long long count_rectangles(vector <vector <int>> a) {
auto h = getLines(a);
auto v = getLines(rotate(a));
int n = a.size();
int m = a.front().size();
for(auto &x : v) {
int aux = x.l;
x.l = max(0, x.l - 1);
x.r = min(n - 1, x.r + 1);
for(int i = x.l; i <= x.r; i++) {
ver[i][x.j].emplace_back(x.l, x.i);
// cout << x.j << " " << i << " " << x.i << " " << x.l << endl;
}
// cout << x.i << " " << x.j << " " << x.l << " " << x.r << endl;
}
for(auto &x : h) {
int aux = x.l;
x.l = max(0, x.l - 1);
x.r = min(m - 1, x.r + 1);
for(int i = x.l; i <= x.r; i++) {
hor[x.j][i].emplace_back(x.i, x.l);
}
}
long long ans = 0;
for(int i = 0; i < n; i++) {
for(int j = 0; j < m; j++) {
ans += solve(i, j);
}
}
return ans;
}
Compilation message
rect.cpp: In function 'long long int count_rectangles(std::vector<std::vector<int> >)':
rect.cpp:84:9: warning: unused variable 'aux' [-Wunused-variable]
84 | int aux = x.l;
| ^~~
rect.cpp:94:9: warning: unused variable 'aux' [-Wunused-variable]
94 | int aux = x.l;
| ^~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
197 ms |
295032 KB |
Output is correct |
2 |
Correct |
209 ms |
295288 KB |
Output is correct |
3 |
Correct |
203 ms |
295032 KB |
Output is correct |
4 |
Correct |
202 ms |
294988 KB |
Output is correct |
5 |
Correct |
189 ms |
295036 KB |
Output is correct |
6 |
Correct |
185 ms |
295160 KB |
Output is correct |
7 |
Correct |
183 ms |
295160 KB |
Output is correct |
8 |
Correct |
182 ms |
295032 KB |
Output is correct |
9 |
Correct |
184 ms |
295056 KB |
Output is correct |
10 |
Correct |
183 ms |
295032 KB |
Output is correct |
11 |
Correct |
188 ms |
295160 KB |
Output is correct |
12 |
Correct |
186 ms |
295160 KB |
Output is correct |
13 |
Correct |
182 ms |
294960 KB |
Output is correct |
14 |
Correct |
190 ms |
295032 KB |
Output is correct |
15 |
Correct |
190 ms |
295032 KB |
Output is correct |
16 |
Correct |
181 ms |
295032 KB |
Output is correct |
17 |
Correct |
189 ms |
295032 KB |
Output is correct |
18 |
Correct |
183 ms |
295032 KB |
Output is correct |
19 |
Correct |
187 ms |
295032 KB |
Output is correct |
20 |
Correct |
182 ms |
295032 KB |
Output is correct |
21 |
Correct |
184 ms |
295032 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
197 ms |
295032 KB |
Output is correct |
2 |
Correct |
209 ms |
295288 KB |
Output is correct |
3 |
Correct |
203 ms |
295032 KB |
Output is correct |
4 |
Correct |
202 ms |
294988 KB |
Output is correct |
5 |
Correct |
189 ms |
295036 KB |
Output is correct |
6 |
Correct |
185 ms |
295160 KB |
Output is correct |
7 |
Correct |
183 ms |
295160 KB |
Output is correct |
8 |
Correct |
182 ms |
295032 KB |
Output is correct |
9 |
Correct |
184 ms |
295056 KB |
Output is correct |
10 |
Correct |
183 ms |
295032 KB |
Output is correct |
11 |
Correct |
188 ms |
295160 KB |
Output is correct |
12 |
Correct |
186 ms |
295160 KB |
Output is correct |
13 |
Correct |
182 ms |
294960 KB |
Output is correct |
14 |
Correct |
190 ms |
295032 KB |
Output is correct |
15 |
Correct |
190 ms |
295032 KB |
Output is correct |
16 |
Correct |
181 ms |
295032 KB |
Output is correct |
17 |
Correct |
185 ms |
295288 KB |
Output is correct |
18 |
Correct |
200 ms |
295288 KB |
Output is correct |
19 |
Correct |
187 ms |
295288 KB |
Output is correct |
20 |
Correct |
188 ms |
295392 KB |
Output is correct |
21 |
Correct |
189 ms |
295680 KB |
Output is correct |
22 |
Correct |
190 ms |
295672 KB |
Output is correct |
23 |
Correct |
195 ms |
295688 KB |
Output is correct |
24 |
Correct |
183 ms |
295288 KB |
Output is correct |
25 |
Correct |
189 ms |
295032 KB |
Output is correct |
26 |
Correct |
183 ms |
295032 KB |
Output is correct |
27 |
Correct |
187 ms |
295032 KB |
Output is correct |
28 |
Correct |
182 ms |
295032 KB |
Output is correct |
29 |
Correct |
184 ms |
295032 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
197 ms |
295032 KB |
Output is correct |
2 |
Correct |
209 ms |
295288 KB |
Output is correct |
3 |
Correct |
203 ms |
295032 KB |
Output is correct |
4 |
Correct |
202 ms |
294988 KB |
Output is correct |
5 |
Correct |
189 ms |
295036 KB |
Output is correct |
6 |
Correct |
185 ms |
295160 KB |
Output is correct |
7 |
Correct |
183 ms |
295160 KB |
Output is correct |
8 |
Correct |
182 ms |
295032 KB |
Output is correct |
9 |
Correct |
184 ms |
295056 KB |
Output is correct |
10 |
Correct |
183 ms |
295032 KB |
Output is correct |
11 |
Correct |
188 ms |
295160 KB |
Output is correct |
12 |
Correct |
186 ms |
295160 KB |
Output is correct |
13 |
Correct |
182 ms |
294960 KB |
Output is correct |
14 |
Correct |
190 ms |
295032 KB |
Output is correct |
15 |
Correct |
190 ms |
295032 KB |
Output is correct |
16 |
Correct |
181 ms |
295032 KB |
Output is correct |
17 |
Correct |
185 ms |
295288 KB |
Output is correct |
18 |
Correct |
200 ms |
295288 KB |
Output is correct |
19 |
Correct |
187 ms |
295288 KB |
Output is correct |
20 |
Correct |
188 ms |
295392 KB |
Output is correct |
21 |
Correct |
189 ms |
295680 KB |
Output is correct |
22 |
Correct |
190 ms |
295672 KB |
Output is correct |
23 |
Correct |
195 ms |
295688 KB |
Output is correct |
24 |
Correct |
183 ms |
295288 KB |
Output is correct |
25 |
Correct |
203 ms |
296212 KB |
Output is correct |
26 |
Correct |
201 ms |
296160 KB |
Output is correct |
27 |
Correct |
207 ms |
296184 KB |
Output is correct |
28 |
Correct |
204 ms |
297612 KB |
Output is correct |
29 |
Correct |
223 ms |
299528 KB |
Output is correct |
30 |
Correct |
225 ms |
299528 KB |
Output is correct |
31 |
Correct |
216 ms |
298888 KB |
Output is correct |
32 |
Correct |
214 ms |
298884 KB |
Output is correct |
33 |
Correct |
189 ms |
295032 KB |
Output is correct |
34 |
Correct |
183 ms |
295032 KB |
Output is correct |
35 |
Correct |
187 ms |
295032 KB |
Output is correct |
36 |
Correct |
182 ms |
295032 KB |
Output is correct |
37 |
Correct |
184 ms |
295032 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
197 ms |
295032 KB |
Output is correct |
2 |
Correct |
209 ms |
295288 KB |
Output is correct |
3 |
Correct |
203 ms |
295032 KB |
Output is correct |
4 |
Correct |
202 ms |
294988 KB |
Output is correct |
5 |
Correct |
189 ms |
295036 KB |
Output is correct |
6 |
Correct |
185 ms |
295160 KB |
Output is correct |
7 |
Correct |
183 ms |
295160 KB |
Output is correct |
8 |
Correct |
182 ms |
295032 KB |
Output is correct |
9 |
Correct |
184 ms |
295056 KB |
Output is correct |
10 |
Correct |
183 ms |
295032 KB |
Output is correct |
11 |
Correct |
188 ms |
295160 KB |
Output is correct |
12 |
Correct |
186 ms |
295160 KB |
Output is correct |
13 |
Correct |
182 ms |
294960 KB |
Output is correct |
14 |
Correct |
190 ms |
295032 KB |
Output is correct |
15 |
Correct |
190 ms |
295032 KB |
Output is correct |
16 |
Correct |
181 ms |
295032 KB |
Output is correct |
17 |
Correct |
185 ms |
295288 KB |
Output is correct |
18 |
Correct |
200 ms |
295288 KB |
Output is correct |
19 |
Correct |
187 ms |
295288 KB |
Output is correct |
20 |
Correct |
188 ms |
295392 KB |
Output is correct |
21 |
Correct |
189 ms |
295680 KB |
Output is correct |
22 |
Correct |
190 ms |
295672 KB |
Output is correct |
23 |
Correct |
195 ms |
295688 KB |
Output is correct |
24 |
Correct |
183 ms |
295288 KB |
Output is correct |
25 |
Correct |
203 ms |
296212 KB |
Output is correct |
26 |
Correct |
201 ms |
296160 KB |
Output is correct |
27 |
Correct |
207 ms |
296184 KB |
Output is correct |
28 |
Correct |
204 ms |
297612 KB |
Output is correct |
29 |
Correct |
223 ms |
299528 KB |
Output is correct |
30 |
Correct |
225 ms |
299528 KB |
Output is correct |
31 |
Correct |
216 ms |
298888 KB |
Output is correct |
32 |
Correct |
214 ms |
298884 KB |
Output is correct |
33 |
Correct |
520 ms |
323832 KB |
Output is correct |
34 |
Correct |
439 ms |
326756 KB |
Output is correct |
35 |
Correct |
408 ms |
326668 KB |
Output is correct |
36 |
Correct |
445 ms |
329608 KB |
Output is correct |
37 |
Correct |
448 ms |
310264 KB |
Output is correct |
38 |
Correct |
485 ms |
310212 KB |
Output is correct |
39 |
Correct |
450 ms |
310536 KB |
Output is correct |
40 |
Correct |
440 ms |
309812 KB |
Output is correct |
41 |
Correct |
394 ms |
320256 KB |
Output is correct |
42 |
Correct |
419 ms |
326744 KB |
Output is correct |
43 |
Correct |
622 ms |
350696 KB |
Output is correct |
44 |
Correct |
657 ms |
351424 KB |
Output is correct |
45 |
Correct |
411 ms |
322940 KB |
Output is correct |
46 |
Correct |
406 ms |
322968 KB |
Output is correct |
47 |
Correct |
582 ms |
341612 KB |
Output is correct |
48 |
Correct |
592 ms |
342000 KB |
Output is correct |
49 |
Correct |
189 ms |
295032 KB |
Output is correct |
50 |
Correct |
183 ms |
295032 KB |
Output is correct |
51 |
Correct |
187 ms |
295032 KB |
Output is correct |
52 |
Correct |
182 ms |
295032 KB |
Output is correct |
53 |
Correct |
184 ms |
295032 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
229 ms |
295800 KB |
Output is correct |
2 |
Correct |
218 ms |
295568 KB |
Output is correct |
3 |
Correct |
222 ms |
295288 KB |
Output is correct |
4 |
Correct |
214 ms |
295032 KB |
Output is correct |
5 |
Correct |
223 ms |
295544 KB |
Output is correct |
6 |
Correct |
223 ms |
295544 KB |
Output is correct |
7 |
Correct |
227 ms |
295548 KB |
Output is correct |
8 |
Correct |
238 ms |
295544 KB |
Output is correct |
9 |
Correct |
194 ms |
295672 KB |
Output is correct |
10 |
Correct |
194 ms |
295288 KB |
Output is correct |
11 |
Correct |
192 ms |
295544 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
217 ms |
295032 KB |
Output is correct |
2 |
Correct |
1458 ms |
442232 KB |
Output is correct |
3 |
Correct |
3216 ms |
614696 KB |
Output is correct |
4 |
Correct |
3107 ms |
616448 KB |
Output is correct |
5 |
Correct |
3151 ms |
616568 KB |
Output is correct |
6 |
Correct |
722 ms |
343652 KB |
Output is correct |
7 |
Correct |
1260 ms |
387356 KB |
Output is correct |
8 |
Correct |
1311 ms |
393640 KB |
Output is correct |
9 |
Correct |
189 ms |
295032 KB |
Output is correct |
10 |
Correct |
183 ms |
295032 KB |
Output is correct |
11 |
Correct |
187 ms |
295032 KB |
Output is correct |
12 |
Correct |
182 ms |
295032 KB |
Output is correct |
13 |
Correct |
184 ms |
295032 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
197 ms |
295032 KB |
Output is correct |
2 |
Correct |
209 ms |
295288 KB |
Output is correct |
3 |
Correct |
203 ms |
295032 KB |
Output is correct |
4 |
Correct |
202 ms |
294988 KB |
Output is correct |
5 |
Correct |
189 ms |
295036 KB |
Output is correct |
6 |
Correct |
185 ms |
295160 KB |
Output is correct |
7 |
Correct |
183 ms |
295160 KB |
Output is correct |
8 |
Correct |
182 ms |
295032 KB |
Output is correct |
9 |
Correct |
184 ms |
295056 KB |
Output is correct |
10 |
Correct |
183 ms |
295032 KB |
Output is correct |
11 |
Correct |
188 ms |
295160 KB |
Output is correct |
12 |
Correct |
186 ms |
295160 KB |
Output is correct |
13 |
Correct |
182 ms |
294960 KB |
Output is correct |
14 |
Correct |
190 ms |
295032 KB |
Output is correct |
15 |
Correct |
190 ms |
295032 KB |
Output is correct |
16 |
Correct |
181 ms |
295032 KB |
Output is correct |
17 |
Correct |
185 ms |
295288 KB |
Output is correct |
18 |
Correct |
200 ms |
295288 KB |
Output is correct |
19 |
Correct |
187 ms |
295288 KB |
Output is correct |
20 |
Correct |
188 ms |
295392 KB |
Output is correct |
21 |
Correct |
189 ms |
295680 KB |
Output is correct |
22 |
Correct |
190 ms |
295672 KB |
Output is correct |
23 |
Correct |
195 ms |
295688 KB |
Output is correct |
24 |
Correct |
183 ms |
295288 KB |
Output is correct |
25 |
Correct |
203 ms |
296212 KB |
Output is correct |
26 |
Correct |
201 ms |
296160 KB |
Output is correct |
27 |
Correct |
207 ms |
296184 KB |
Output is correct |
28 |
Correct |
204 ms |
297612 KB |
Output is correct |
29 |
Correct |
223 ms |
299528 KB |
Output is correct |
30 |
Correct |
225 ms |
299528 KB |
Output is correct |
31 |
Correct |
216 ms |
298888 KB |
Output is correct |
32 |
Correct |
214 ms |
298884 KB |
Output is correct |
33 |
Correct |
520 ms |
323832 KB |
Output is correct |
34 |
Correct |
439 ms |
326756 KB |
Output is correct |
35 |
Correct |
408 ms |
326668 KB |
Output is correct |
36 |
Correct |
445 ms |
329608 KB |
Output is correct |
37 |
Correct |
448 ms |
310264 KB |
Output is correct |
38 |
Correct |
485 ms |
310212 KB |
Output is correct |
39 |
Correct |
450 ms |
310536 KB |
Output is correct |
40 |
Correct |
440 ms |
309812 KB |
Output is correct |
41 |
Correct |
394 ms |
320256 KB |
Output is correct |
42 |
Correct |
419 ms |
326744 KB |
Output is correct |
43 |
Correct |
622 ms |
350696 KB |
Output is correct |
44 |
Correct |
657 ms |
351424 KB |
Output is correct |
45 |
Correct |
411 ms |
322940 KB |
Output is correct |
46 |
Correct |
406 ms |
322968 KB |
Output is correct |
47 |
Correct |
582 ms |
341612 KB |
Output is correct |
48 |
Correct |
592 ms |
342000 KB |
Output is correct |
49 |
Correct |
229 ms |
295800 KB |
Output is correct |
50 |
Correct |
218 ms |
295568 KB |
Output is correct |
51 |
Correct |
222 ms |
295288 KB |
Output is correct |
52 |
Correct |
214 ms |
295032 KB |
Output is correct |
53 |
Correct |
223 ms |
295544 KB |
Output is correct |
54 |
Correct |
223 ms |
295544 KB |
Output is correct |
55 |
Correct |
227 ms |
295548 KB |
Output is correct |
56 |
Correct |
238 ms |
295544 KB |
Output is correct |
57 |
Correct |
194 ms |
295672 KB |
Output is correct |
58 |
Correct |
194 ms |
295288 KB |
Output is correct |
59 |
Correct |
192 ms |
295544 KB |
Output is correct |
60 |
Correct |
217 ms |
295032 KB |
Output is correct |
61 |
Correct |
1458 ms |
442232 KB |
Output is correct |
62 |
Correct |
3216 ms |
614696 KB |
Output is correct |
63 |
Correct |
3107 ms |
616448 KB |
Output is correct |
64 |
Correct |
3151 ms |
616568 KB |
Output is correct |
65 |
Correct |
722 ms |
343652 KB |
Output is correct |
66 |
Correct |
1260 ms |
387356 KB |
Output is correct |
67 |
Correct |
1311 ms |
393640 KB |
Output is correct |
68 |
Execution timed out |
5090 ms |
637696 KB |
Time limit exceeded |
69 |
Halted |
0 ms |
0 KB |
- |