#include "rect.h"
#include <cstdio>
#include <vector>
#include <algorithm>
#include <queue>
#include <unordered_map>
#include <map>
#include <stack>
#include <set>
#include <array>
using namespace std;
typedef long long ll;
const int maxn=2521;
int n, m;
int l[maxn][maxn];
//vector < int > r[maxn][maxn], c[maxn][maxn];
unordered_map < int, int > r[maxn][maxn], c[maxn][maxn];
int rind[maxn][maxn], cind[maxn][maxn];
pair < int, int > red[maxn][maxn], stup[maxn][maxn];
int bio2[maxn][maxn], bio3[maxn][maxn];
vector < array < int, 4 > > bio;
void upd1(int x){
stack < pair < int, int > > q;
q.push(make_pair(1e8, -1));
for(int i=0; i<m; i++){
while(q.top().first<=l[x][i]){
q.pop();
}
red[x][i].first=q.top().second+1;
q.push(make_pair(l[x][i], i));
}
while(!q.empty()){
q.pop();
}
q.push(make_pair(1e8, m));
for(int i=m-1; i>-1; i--){
while(q.top().first<=l[x][i]){
q.pop();
}
red[x][i].second=q.top().second-1;
if(bio2[red[x][i].first][red[x][i].second]!=x+1){
bio2[red[x][i].first][red[x][i].second]=x+1;
r[red[x][i].first][red[x][i].second][x]=r[red[x][i].first][red[x][i].second][rind[red[x][i].first][red[x][i].second]]+1;
rind[red[x][i].first][red[x][i].second]=x;
}
q.push(make_pair(l[x][i], i));
}
}
void upd2(int x){
stack < pair < int, int > > q;
q.push(make_pair(1e8, -1));
for(int i=0; i<n; i++){
while(q.top().first<=l[i][x]){
q.pop();
}
stup[i][x].first=q.top().second+1;
q.push(make_pair(l[i][x], i));
}
while(!q.empty()){
q.pop();
}
q.push(make_pair(1e8, n));
for(int i=n-1; i>-1; i--){
while(q.top().first<=l[i][x]){
q.pop();
}
stup[i][x].second=q.top().second-1;
if(bio3[stup[i][x].first][stup[i][x].second]!=x+1){
bio3[stup[i][x].first][stup[i][x].second]=x+1;
c[stup[i][x].first][stup[i][x].second][x]=c[stup[i][x].first][stup[i][x].second][cind[stup[i][x].first][stup[i][x].second]]+1;
cind[stup[i][x].first][stup[i][x].second]=x;
}
q.push(make_pair(l[i][x], i));
}
}
int binary(int x, vector < int > &l){
int lo=0, hi=l.size(), mid;
while(lo<hi){
mid=(lo+hi)/2;
if(l[mid]<x){
lo=mid+1;
}
else{
hi=mid;
}
}
return lo;
}
void provjeri(int x, int y){
int r1, r2, c1, c2;
r1=red[x][y].first;
r2=red[x][y].second;
c1=stup[x][y].first;
c2=stup[x][y].second;
if(r1==0 || c1==0 || r2==m-1 || c2==n-1){
return;
}
// int pos1=binary(c1, r[r1][r2]);
// int pos2=binary(r1, c[c1][c2]);
if(r[r1][r2].find(c2)!=r[r1][r2].end() && r[r1][r2].find(c1)!=r[r1][r2].end()
&& c[c1][c2].find(r2)!=c[c1][c2].end() && c[c1][c2].find(r1)!=c[c1][c2].end()
&& r[r1][r2][c2]-r[r1][r2][c1]==c2-c1 && c[c1][c2][r2]-c[c1][c2][r1]==r2-r1){
bio.push_back({r1, r2, c1, c2});
}
}
long long count_rectangles(vector < vector < int > > a){
n=a.size();
m=a[0].size();
for(int i=0; i<n; i++){
for(int j=0; j<m; j++){
l[i][j]=a[i][j];
}
}
for(int i=0; i<n; i++){
upd1(i);
}
for(int i=0; i<m; i++){
upd2(i);
}
for(int i=1; i<n-1; i++){
for(int j=1; j<m-1; j++){
provjeri(i, j);
}
}
sort(bio.begin(), bio.end());
bio.erase(unique(bio.begin(), bio.end()), bio.end());
return bio.size();
}
/*
int main(){
scanf("%d%d", &n, &m);
for(int i=0; i<n; i++){
for(int j=0; j<m; j++){
scanf("%d", &l[i][j]);
}
}
for(int i=0; i<n; i++){
upd1(i);
}
for(int i=0; i<m; i++){
upd2(i);
}
for(int i=1; i<n-1; i++){
for(int j=1; j<m-1; j++){
provjeri(i, j);
}
}
sort(bio.begin(), bio.end());
bio.erase(unique(bio.begin(), bio.end()), bio.end());
printf("%d\n", bio.size());
return 0;
}*/
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
704 ms |
697028 KB |
Output is correct |
2 |
Correct |
736 ms |
697976 KB |
Output is correct |
3 |
Correct |
725 ms |
697864 KB |
Output is correct |
4 |
Correct |
691 ms |
697736 KB |
Output is correct |
5 |
Correct |
757 ms |
697248 KB |
Output is correct |
6 |
Correct |
689 ms |
697896 KB |
Output is correct |
7 |
Correct |
698 ms |
697700 KB |
Output is correct |
8 |
Correct |
717 ms |
697528 KB |
Output is correct |
9 |
Correct |
692 ms |
697848 KB |
Output is correct |
10 |
Correct |
695 ms |
697812 KB |
Output is correct |
11 |
Correct |
698 ms |
697848 KB |
Output is correct |
12 |
Correct |
708 ms |
697724 KB |
Output is correct |
13 |
Correct |
703 ms |
696824 KB |
Output is correct |
14 |
Correct |
691 ms |
697092 KB |
Output is correct |
15 |
Correct |
728 ms |
696976 KB |
Output is correct |
16 |
Correct |
703 ms |
696920 KB |
Output is correct |
17 |
Correct |
691 ms |
696824 KB |
Output is correct |
18 |
Correct |
687 ms |
696848 KB |
Output is correct |
19 |
Correct |
696 ms |
697720 KB |
Output is correct |
20 |
Correct |
685 ms |
697280 KB |
Output is correct |
21 |
Correct |
688 ms |
697000 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
704 ms |
697028 KB |
Output is correct |
2 |
Correct |
736 ms |
697976 KB |
Output is correct |
3 |
Correct |
725 ms |
697864 KB |
Output is correct |
4 |
Correct |
691 ms |
697736 KB |
Output is correct |
5 |
Correct |
757 ms |
697248 KB |
Output is correct |
6 |
Correct |
689 ms |
697896 KB |
Output is correct |
7 |
Correct |
698 ms |
697700 KB |
Output is correct |
8 |
Correct |
717 ms |
697528 KB |
Output is correct |
9 |
Correct |
692 ms |
697848 KB |
Output is correct |
10 |
Correct |
695 ms |
697812 KB |
Output is correct |
11 |
Correct |
698 ms |
697848 KB |
Output is correct |
12 |
Correct |
708 ms |
697724 KB |
Output is correct |
13 |
Correct |
703 ms |
696824 KB |
Output is correct |
14 |
Correct |
691 ms |
697092 KB |
Output is correct |
15 |
Correct |
728 ms |
696976 KB |
Output is correct |
16 |
Correct |
703 ms |
696920 KB |
Output is correct |
17 |
Correct |
700 ms |
700188 KB |
Output is correct |
18 |
Correct |
700 ms |
700152 KB |
Output is correct |
19 |
Correct |
698 ms |
700152 KB |
Output is correct |
20 |
Correct |
695 ms |
699612 KB |
Output is correct |
21 |
Correct |
702 ms |
700152 KB |
Output is correct |
22 |
Correct |
705 ms |
700024 KB |
Output is correct |
23 |
Correct |
708 ms |
700252 KB |
Output is correct |
24 |
Correct |
702 ms |
699164 KB |
Output is correct |
25 |
Correct |
691 ms |
696824 KB |
Output is correct |
26 |
Correct |
687 ms |
696848 KB |
Output is correct |
27 |
Correct |
696 ms |
697720 KB |
Output is correct |
28 |
Correct |
685 ms |
697280 KB |
Output is correct |
29 |
Correct |
688 ms |
697000 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
704 ms |
697028 KB |
Output is correct |
2 |
Correct |
736 ms |
697976 KB |
Output is correct |
3 |
Correct |
725 ms |
697864 KB |
Output is correct |
4 |
Correct |
691 ms |
697736 KB |
Output is correct |
5 |
Correct |
757 ms |
697248 KB |
Output is correct |
6 |
Correct |
689 ms |
697896 KB |
Output is correct |
7 |
Correct |
698 ms |
697700 KB |
Output is correct |
8 |
Correct |
717 ms |
697528 KB |
Output is correct |
9 |
Correct |
692 ms |
697848 KB |
Output is correct |
10 |
Correct |
695 ms |
697812 KB |
Output is correct |
11 |
Correct |
698 ms |
697848 KB |
Output is correct |
12 |
Correct |
708 ms |
697724 KB |
Output is correct |
13 |
Correct |
703 ms |
696824 KB |
Output is correct |
14 |
Correct |
691 ms |
697092 KB |
Output is correct |
15 |
Correct |
728 ms |
696976 KB |
Output is correct |
16 |
Correct |
703 ms |
696920 KB |
Output is correct |
17 |
Correct |
700 ms |
700188 KB |
Output is correct |
18 |
Correct |
700 ms |
700152 KB |
Output is correct |
19 |
Correct |
698 ms |
700152 KB |
Output is correct |
20 |
Correct |
695 ms |
699612 KB |
Output is correct |
21 |
Correct |
702 ms |
700152 KB |
Output is correct |
22 |
Correct |
705 ms |
700024 KB |
Output is correct |
23 |
Correct |
708 ms |
700252 KB |
Output is correct |
24 |
Correct |
702 ms |
699164 KB |
Output is correct |
25 |
Correct |
743 ms |
708372 KB |
Output is correct |
26 |
Correct |
735 ms |
708340 KB |
Output is correct |
27 |
Correct |
745 ms |
708556 KB |
Output is correct |
28 |
Correct |
731 ms |
705436 KB |
Output is correct |
29 |
Correct |
800 ms |
708216 KB |
Output is correct |
30 |
Correct |
762 ms |
708396 KB |
Output is correct |
31 |
Correct |
746 ms |
707992 KB |
Output is correct |
32 |
Correct |
750 ms |
707844 KB |
Output is correct |
33 |
Correct |
691 ms |
696824 KB |
Output is correct |
34 |
Correct |
687 ms |
696848 KB |
Output is correct |
35 |
Correct |
696 ms |
697720 KB |
Output is correct |
36 |
Correct |
685 ms |
697280 KB |
Output is correct |
37 |
Correct |
688 ms |
697000 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
704 ms |
697028 KB |
Output is correct |
2 |
Correct |
736 ms |
697976 KB |
Output is correct |
3 |
Correct |
725 ms |
697864 KB |
Output is correct |
4 |
Correct |
691 ms |
697736 KB |
Output is correct |
5 |
Correct |
757 ms |
697248 KB |
Output is correct |
6 |
Correct |
689 ms |
697896 KB |
Output is correct |
7 |
Correct |
698 ms |
697700 KB |
Output is correct |
8 |
Correct |
717 ms |
697528 KB |
Output is correct |
9 |
Correct |
692 ms |
697848 KB |
Output is correct |
10 |
Correct |
695 ms |
697812 KB |
Output is correct |
11 |
Correct |
698 ms |
697848 KB |
Output is correct |
12 |
Correct |
708 ms |
697724 KB |
Output is correct |
13 |
Correct |
703 ms |
696824 KB |
Output is correct |
14 |
Correct |
691 ms |
697092 KB |
Output is correct |
15 |
Correct |
728 ms |
696976 KB |
Output is correct |
16 |
Correct |
703 ms |
696920 KB |
Output is correct |
17 |
Correct |
700 ms |
700188 KB |
Output is correct |
18 |
Correct |
700 ms |
700152 KB |
Output is correct |
19 |
Correct |
698 ms |
700152 KB |
Output is correct |
20 |
Correct |
695 ms |
699612 KB |
Output is correct |
21 |
Correct |
702 ms |
700152 KB |
Output is correct |
22 |
Correct |
705 ms |
700024 KB |
Output is correct |
23 |
Correct |
708 ms |
700252 KB |
Output is correct |
24 |
Correct |
702 ms |
699164 KB |
Output is correct |
25 |
Correct |
743 ms |
708372 KB |
Output is correct |
26 |
Correct |
735 ms |
708340 KB |
Output is correct |
27 |
Correct |
745 ms |
708556 KB |
Output is correct |
28 |
Correct |
731 ms |
705436 KB |
Output is correct |
29 |
Correct |
800 ms |
708216 KB |
Output is correct |
30 |
Correct |
762 ms |
708396 KB |
Output is correct |
31 |
Correct |
746 ms |
707992 KB |
Output is correct |
32 |
Correct |
750 ms |
707844 KB |
Output is correct |
33 |
Correct |
1328 ms |
800652 KB |
Output is correct |
34 |
Correct |
1229 ms |
800664 KB |
Output is correct |
35 |
Correct |
1194 ms |
800652 KB |
Output is correct |
36 |
Correct |
1286 ms |
800680 KB |
Output is correct |
37 |
Correct |
1447 ms |
777028 KB |
Output is correct |
38 |
Correct |
1403 ms |
776928 KB |
Output is correct |
39 |
Correct |
1386 ms |
776988 KB |
Output is correct |
40 |
Correct |
1305 ms |
772836 KB |
Output is correct |
41 |
Correct |
969 ms |
742396 KB |
Output is correct |
42 |
Correct |
1105 ms |
748508 KB |
Output is correct |
43 |
Correct |
1596 ms |
783308 KB |
Output is correct |
44 |
Correct |
1611 ms |
784600 KB |
Output is correct |
45 |
Correct |
1132 ms |
748344 KB |
Output is correct |
46 |
Correct |
1287 ms |
744176 KB |
Output is correct |
47 |
Correct |
1632 ms |
776148 KB |
Output is correct |
48 |
Correct |
1537 ms |
776520 KB |
Output is correct |
49 |
Correct |
691 ms |
696824 KB |
Output is correct |
50 |
Correct |
687 ms |
696848 KB |
Output is correct |
51 |
Correct |
696 ms |
697720 KB |
Output is correct |
52 |
Correct |
685 ms |
697280 KB |
Output is correct |
53 |
Correct |
688 ms |
697000 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
727 ms |
718052 KB |
Output is correct |
2 |
Correct |
759 ms |
714872 KB |
Output is correct |
3 |
Correct |
694 ms |
697208 KB |
Output is correct |
4 |
Correct |
693 ms |
696952 KB |
Output is correct |
5 |
Correct |
719 ms |
716100 KB |
Output is correct |
6 |
Correct |
738 ms |
715844 KB |
Output is correct |
7 |
Correct |
729 ms |
716084 KB |
Output is correct |
8 |
Correct |
722 ms |
714680 KB |
Output is correct |
9 |
Correct |
722 ms |
714268 KB |
Output is correct |
10 |
Correct |
711 ms |
707528 KB |
Output is correct |
11 |
Correct |
720 ms |
712956 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
705 ms |
697160 KB |
Output is correct |
2 |
Correct |
2904 ms |
875500 KB |
Output is correct |
3 |
Runtime error |
4988 ms |
1048580 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
704 ms |
697028 KB |
Output is correct |
2 |
Correct |
736 ms |
697976 KB |
Output is correct |
3 |
Correct |
725 ms |
697864 KB |
Output is correct |
4 |
Correct |
691 ms |
697736 KB |
Output is correct |
5 |
Correct |
757 ms |
697248 KB |
Output is correct |
6 |
Correct |
689 ms |
697896 KB |
Output is correct |
7 |
Correct |
698 ms |
697700 KB |
Output is correct |
8 |
Correct |
717 ms |
697528 KB |
Output is correct |
9 |
Correct |
692 ms |
697848 KB |
Output is correct |
10 |
Correct |
695 ms |
697812 KB |
Output is correct |
11 |
Correct |
698 ms |
697848 KB |
Output is correct |
12 |
Correct |
708 ms |
697724 KB |
Output is correct |
13 |
Correct |
703 ms |
696824 KB |
Output is correct |
14 |
Correct |
691 ms |
697092 KB |
Output is correct |
15 |
Correct |
728 ms |
696976 KB |
Output is correct |
16 |
Correct |
703 ms |
696920 KB |
Output is correct |
17 |
Correct |
700 ms |
700188 KB |
Output is correct |
18 |
Correct |
700 ms |
700152 KB |
Output is correct |
19 |
Correct |
698 ms |
700152 KB |
Output is correct |
20 |
Correct |
695 ms |
699612 KB |
Output is correct |
21 |
Correct |
702 ms |
700152 KB |
Output is correct |
22 |
Correct |
705 ms |
700024 KB |
Output is correct |
23 |
Correct |
708 ms |
700252 KB |
Output is correct |
24 |
Correct |
702 ms |
699164 KB |
Output is correct |
25 |
Correct |
743 ms |
708372 KB |
Output is correct |
26 |
Correct |
735 ms |
708340 KB |
Output is correct |
27 |
Correct |
745 ms |
708556 KB |
Output is correct |
28 |
Correct |
731 ms |
705436 KB |
Output is correct |
29 |
Correct |
800 ms |
708216 KB |
Output is correct |
30 |
Correct |
762 ms |
708396 KB |
Output is correct |
31 |
Correct |
746 ms |
707992 KB |
Output is correct |
32 |
Correct |
750 ms |
707844 KB |
Output is correct |
33 |
Correct |
1328 ms |
800652 KB |
Output is correct |
34 |
Correct |
1229 ms |
800664 KB |
Output is correct |
35 |
Correct |
1194 ms |
800652 KB |
Output is correct |
36 |
Correct |
1286 ms |
800680 KB |
Output is correct |
37 |
Correct |
1447 ms |
777028 KB |
Output is correct |
38 |
Correct |
1403 ms |
776928 KB |
Output is correct |
39 |
Correct |
1386 ms |
776988 KB |
Output is correct |
40 |
Correct |
1305 ms |
772836 KB |
Output is correct |
41 |
Correct |
969 ms |
742396 KB |
Output is correct |
42 |
Correct |
1105 ms |
748508 KB |
Output is correct |
43 |
Correct |
1596 ms |
783308 KB |
Output is correct |
44 |
Correct |
1611 ms |
784600 KB |
Output is correct |
45 |
Correct |
1132 ms |
748344 KB |
Output is correct |
46 |
Correct |
1287 ms |
744176 KB |
Output is correct |
47 |
Correct |
1632 ms |
776148 KB |
Output is correct |
48 |
Correct |
1537 ms |
776520 KB |
Output is correct |
49 |
Correct |
727 ms |
718052 KB |
Output is correct |
50 |
Correct |
759 ms |
714872 KB |
Output is correct |
51 |
Correct |
694 ms |
697208 KB |
Output is correct |
52 |
Correct |
693 ms |
696952 KB |
Output is correct |
53 |
Correct |
719 ms |
716100 KB |
Output is correct |
54 |
Correct |
738 ms |
715844 KB |
Output is correct |
55 |
Correct |
729 ms |
716084 KB |
Output is correct |
56 |
Correct |
722 ms |
714680 KB |
Output is correct |
57 |
Correct |
722 ms |
714268 KB |
Output is correct |
58 |
Correct |
711 ms |
707528 KB |
Output is correct |
59 |
Correct |
720 ms |
712956 KB |
Output is correct |
60 |
Correct |
705 ms |
697160 KB |
Output is correct |
61 |
Correct |
2904 ms |
875500 KB |
Output is correct |
62 |
Runtime error |
4988 ms |
1048580 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
63 |
Halted |
0 ms |
0 KB |
- |