#pragma comment(linker, "/stack:200000000")
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#include "rect.h"
#include <cstdio>
#include <vector>
#include <algorithm>
#include <queue>
#include <unordered_map>
#include <map>
#include <stack>
using namespace std;
typedef long long ll;
const int maxn=2505;
int n, m;
int l[maxn][maxn];
vector < int > r[maxn][maxn], c[maxn][maxn];
pair < int, int > red[maxn][maxn], stup[maxn][maxn];
map < ll, bool > bio, bio2, bio3;
inline ll hashiraj(ll a, ll b, ll c, ll d){
return a*maxn*maxn*maxn+b*maxn*maxn+c*maxn+d;
}
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[hashiraj(0, red[x][i].first, red[x][i].second, x)]){
bio2[hashiraj(0, red[x][i].first, red[x][i].second, x)]=1;
r[red[x][i].first][red[x][i].second].push_back(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[hashiraj(0, stup[i][x].first, stup[i][x].second, x)]){
bio3[hashiraj(0, stup[i][x].first, stup[i][x].second, x)]=1;
c[stup[i][x].first][stup[i][x].second].push_back(x);
}
q.push(make_pair(l[i][x], i));
}
}
int binary(int x, bool p, int y, int z){
int lo=0, hi, mid;
if(p){
hi=r[y][z].size()-1;
}
else{
hi=c[y][z].size()-1;
}
while(lo<hi){
mid=(lo+hi)/2;
if(p){
if(r[y][z][mid]<x){
lo=mid+1;
}
else{
hi=mid;
}
}
else{
if(c[y][z][mid]<x){
lo=mid+1;
}
else{
hi=mid;
}
}
}
return lo;
}
bool 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 0;
}
int pos1=binary(c1, 1, r1, r2);
int pos2=binary(r1, 0, c1, c2);
/* printf("novi\n");
printf("%d %d\n", x, y);
printf("%d %d\n", r1, r2);
printf("%d %d\n", c1, c2);
printf("%d %d\n", pos1, pos2);
for(int i=0; i<r[r1][r2].size(); i++){
printf("%d ", r[r1][r2][i]);
}
printf("\n");
for(int i=0; i<c[c1][c2].size(); i++){
printf("%d ", c[c1][c2][i]);
}
printf("\n");*/
if(r[r1][r2][pos1]==c1 && r[r1][r2].size()-pos1-c2+c1-1>=0 && r[r1][r2][pos1+c2-c1]==c2
&& c[c1][c2][pos2]==r1 && c[c1][c2].size()-pos2-r2+r1-1>=0 && c[c1][c2][pos2+r2-r1]==r2){
if(!bio[hashiraj(r1, r2, c1, c2)]){
// printf("cudo\n");
bio[hashiraj(r1, r2, c1, c2)]=1;
return 1;
}
}
return 0;
}
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);
}
int br=0;
for(int i=1; i<n-1; i++){
for(int j=1; j<m-1; j++){
if(provjeri(i, j)){
br++;
}
}
}
return br;
}
/*
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);
}
int br=0;
for(int i=1; i<n-1; i++){
for(int j=1; j<m-1; j++){
if(provjeri(i, j)){
br++;
}
}
}
printf("%d\n", br);
return 0;
}*/
Compilation message
rect.cpp:1:0: warning: ignoring #pragma comment [-Wunknown-pragmas]
#pragma comment(linker, "/stack:200000000")
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
286 ms |
295056 KB |
Output is correct |
2 |
Correct |
310 ms |
295552 KB |
Output is correct |
3 |
Correct |
306 ms |
295636 KB |
Output is correct |
4 |
Correct |
288 ms |
295644 KB |
Output is correct |
5 |
Correct |
289 ms |
295356 KB |
Output is correct |
6 |
Correct |
327 ms |
295588 KB |
Output is correct |
7 |
Correct |
307 ms |
295556 KB |
Output is correct |
8 |
Correct |
300 ms |
295176 KB |
Output is correct |
9 |
Correct |
337 ms |
295496 KB |
Output is correct |
10 |
Correct |
291 ms |
295672 KB |
Output is correct |
11 |
Correct |
289 ms |
295544 KB |
Output is correct |
12 |
Correct |
299 ms |
295544 KB |
Output is correct |
13 |
Correct |
292 ms |
295032 KB |
Output is correct |
14 |
Correct |
286 ms |
295356 KB |
Output is correct |
15 |
Correct |
288 ms |
295288 KB |
Output is correct |
16 |
Correct |
286 ms |
295032 KB |
Output is correct |
17 |
Correct |
286 ms |
295052 KB |
Output is correct |
18 |
Correct |
300 ms |
295104 KB |
Output is correct |
19 |
Correct |
289 ms |
295416 KB |
Output is correct |
20 |
Correct |
292 ms |
295420 KB |
Output is correct |
21 |
Correct |
291 ms |
295248 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
286 ms |
295056 KB |
Output is correct |
2 |
Correct |
310 ms |
295552 KB |
Output is correct |
3 |
Correct |
306 ms |
295636 KB |
Output is correct |
4 |
Correct |
288 ms |
295644 KB |
Output is correct |
5 |
Correct |
289 ms |
295356 KB |
Output is correct |
6 |
Correct |
327 ms |
295588 KB |
Output is correct |
7 |
Correct |
307 ms |
295556 KB |
Output is correct |
8 |
Correct |
300 ms |
295176 KB |
Output is correct |
9 |
Correct |
337 ms |
295496 KB |
Output is correct |
10 |
Correct |
291 ms |
295672 KB |
Output is correct |
11 |
Correct |
289 ms |
295544 KB |
Output is correct |
12 |
Correct |
299 ms |
295544 KB |
Output is correct |
13 |
Correct |
292 ms |
295032 KB |
Output is correct |
14 |
Correct |
286 ms |
295356 KB |
Output is correct |
15 |
Correct |
288 ms |
295288 KB |
Output is correct |
16 |
Correct |
286 ms |
295032 KB |
Output is correct |
17 |
Correct |
314 ms |
297464 KB |
Output is correct |
18 |
Correct |
295 ms |
297464 KB |
Output is correct |
19 |
Correct |
306 ms |
297504 KB |
Output is correct |
20 |
Correct |
292 ms |
296712 KB |
Output is correct |
21 |
Correct |
297 ms |
297256 KB |
Output is correct |
22 |
Correct |
295 ms |
297160 KB |
Output is correct |
23 |
Correct |
295 ms |
297208 KB |
Output is correct |
24 |
Correct |
292 ms |
296548 KB |
Output is correct |
25 |
Correct |
286 ms |
295052 KB |
Output is correct |
26 |
Correct |
300 ms |
295104 KB |
Output is correct |
27 |
Correct |
289 ms |
295416 KB |
Output is correct |
28 |
Correct |
292 ms |
295420 KB |
Output is correct |
29 |
Correct |
291 ms |
295248 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
286 ms |
295056 KB |
Output is correct |
2 |
Correct |
310 ms |
295552 KB |
Output is correct |
3 |
Correct |
306 ms |
295636 KB |
Output is correct |
4 |
Correct |
288 ms |
295644 KB |
Output is correct |
5 |
Correct |
289 ms |
295356 KB |
Output is correct |
6 |
Correct |
327 ms |
295588 KB |
Output is correct |
7 |
Correct |
307 ms |
295556 KB |
Output is correct |
8 |
Correct |
300 ms |
295176 KB |
Output is correct |
9 |
Correct |
337 ms |
295496 KB |
Output is correct |
10 |
Correct |
291 ms |
295672 KB |
Output is correct |
11 |
Correct |
289 ms |
295544 KB |
Output is correct |
12 |
Correct |
299 ms |
295544 KB |
Output is correct |
13 |
Correct |
292 ms |
295032 KB |
Output is correct |
14 |
Correct |
286 ms |
295356 KB |
Output is correct |
15 |
Correct |
288 ms |
295288 KB |
Output is correct |
16 |
Correct |
286 ms |
295032 KB |
Output is correct |
17 |
Correct |
314 ms |
297464 KB |
Output is correct |
18 |
Correct |
295 ms |
297464 KB |
Output is correct |
19 |
Correct |
306 ms |
297504 KB |
Output is correct |
20 |
Correct |
292 ms |
296712 KB |
Output is correct |
21 |
Correct |
297 ms |
297256 KB |
Output is correct |
22 |
Correct |
295 ms |
297160 KB |
Output is correct |
23 |
Correct |
295 ms |
297208 KB |
Output is correct |
24 |
Correct |
292 ms |
296548 KB |
Output is correct |
25 |
Correct |
356 ms |
306424 KB |
Output is correct |
26 |
Correct |
356 ms |
306476 KB |
Output is correct |
27 |
Correct |
359 ms |
306504 KB |
Output is correct |
28 |
Correct |
317 ms |
301092 KB |
Output is correct |
29 |
Correct |
361 ms |
305072 KB |
Output is correct |
30 |
Correct |
356 ms |
305192 KB |
Output is correct |
31 |
Correct |
356 ms |
304632 KB |
Output is correct |
32 |
Correct |
350 ms |
304504 KB |
Output is correct |
33 |
Correct |
286 ms |
295052 KB |
Output is correct |
34 |
Correct |
300 ms |
295104 KB |
Output is correct |
35 |
Correct |
289 ms |
295416 KB |
Output is correct |
36 |
Correct |
292 ms |
295420 KB |
Output is correct |
37 |
Correct |
291 ms |
295248 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
286 ms |
295056 KB |
Output is correct |
2 |
Correct |
310 ms |
295552 KB |
Output is correct |
3 |
Correct |
306 ms |
295636 KB |
Output is correct |
4 |
Correct |
288 ms |
295644 KB |
Output is correct |
5 |
Correct |
289 ms |
295356 KB |
Output is correct |
6 |
Correct |
327 ms |
295588 KB |
Output is correct |
7 |
Correct |
307 ms |
295556 KB |
Output is correct |
8 |
Correct |
300 ms |
295176 KB |
Output is correct |
9 |
Correct |
337 ms |
295496 KB |
Output is correct |
10 |
Correct |
291 ms |
295672 KB |
Output is correct |
11 |
Correct |
289 ms |
295544 KB |
Output is correct |
12 |
Correct |
299 ms |
295544 KB |
Output is correct |
13 |
Correct |
292 ms |
295032 KB |
Output is correct |
14 |
Correct |
286 ms |
295356 KB |
Output is correct |
15 |
Correct |
288 ms |
295288 KB |
Output is correct |
16 |
Correct |
286 ms |
295032 KB |
Output is correct |
17 |
Correct |
314 ms |
297464 KB |
Output is correct |
18 |
Correct |
295 ms |
297464 KB |
Output is correct |
19 |
Correct |
306 ms |
297504 KB |
Output is correct |
20 |
Correct |
292 ms |
296712 KB |
Output is correct |
21 |
Correct |
297 ms |
297256 KB |
Output is correct |
22 |
Correct |
295 ms |
297160 KB |
Output is correct |
23 |
Correct |
295 ms |
297208 KB |
Output is correct |
24 |
Correct |
292 ms |
296548 KB |
Output is correct |
25 |
Correct |
356 ms |
306424 KB |
Output is correct |
26 |
Correct |
356 ms |
306476 KB |
Output is correct |
27 |
Correct |
359 ms |
306504 KB |
Output is correct |
28 |
Correct |
317 ms |
301092 KB |
Output is correct |
29 |
Correct |
361 ms |
305072 KB |
Output is correct |
30 |
Correct |
356 ms |
305192 KB |
Output is correct |
31 |
Correct |
356 ms |
304632 KB |
Output is correct |
32 |
Correct |
350 ms |
304504 KB |
Output is correct |
33 |
Correct |
1263 ms |
396860 KB |
Output is correct |
34 |
Correct |
1134 ms |
396732 KB |
Output is correct |
35 |
Correct |
1127 ms |
396932 KB |
Output is correct |
36 |
Correct |
1125 ms |
396756 KB |
Output is correct |
37 |
Correct |
1491 ms |
414884 KB |
Output is correct |
38 |
Correct |
1594 ms |
414536 KB |
Output is correct |
39 |
Correct |
1514 ms |
414772 KB |
Output is correct |
40 |
Correct |
1491 ms |
407208 KB |
Output is correct |
41 |
Correct |
682 ms |
335432 KB |
Output is correct |
42 |
Correct |
929 ms |
346532 KB |
Output is correct |
43 |
Correct |
1772 ms |
394528 KB |
Output is correct |
44 |
Correct |
1790 ms |
395640 KB |
Output is correct |
45 |
Correct |
1008 ms |
349668 KB |
Output is correct |
46 |
Correct |
934 ms |
345484 KB |
Output is correct |
47 |
Correct |
2017 ms |
389388 KB |
Output is correct |
48 |
Correct |
1551 ms |
389780 KB |
Output is correct |
49 |
Correct |
286 ms |
295052 KB |
Output is correct |
50 |
Correct |
300 ms |
295104 KB |
Output is correct |
51 |
Correct |
289 ms |
295416 KB |
Output is correct |
52 |
Correct |
292 ms |
295420 KB |
Output is correct |
53 |
Correct |
291 ms |
295248 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
292 ms |
296424 KB |
Output is correct |
2 |
Correct |
293 ms |
296196 KB |
Output is correct |
3 |
Correct |
287 ms |
295516 KB |
Output is correct |
4 |
Correct |
290 ms |
295112 KB |
Output is correct |
5 |
Correct |
296 ms |
296564 KB |
Output is correct |
6 |
Correct |
312 ms |
296580 KB |
Output is correct |
7 |
Correct |
293 ms |
296452 KB |
Output is correct |
8 |
Correct |
295 ms |
296456 KB |
Output is correct |
9 |
Correct |
305 ms |
296388 KB |
Output is correct |
10 |
Correct |
325 ms |
295448 KB |
Output is correct |
11 |
Correct |
289 ms |
295992 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
300 ms |
295296 KB |
Output is correct |
2 |
Correct |
3406 ms |
485628 KB |
Output is correct |
3 |
Execution timed out |
5126 ms |
597392 KB |
Time limit exceeded |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
286 ms |
295056 KB |
Output is correct |
2 |
Correct |
310 ms |
295552 KB |
Output is correct |
3 |
Correct |
306 ms |
295636 KB |
Output is correct |
4 |
Correct |
288 ms |
295644 KB |
Output is correct |
5 |
Correct |
289 ms |
295356 KB |
Output is correct |
6 |
Correct |
327 ms |
295588 KB |
Output is correct |
7 |
Correct |
307 ms |
295556 KB |
Output is correct |
8 |
Correct |
300 ms |
295176 KB |
Output is correct |
9 |
Correct |
337 ms |
295496 KB |
Output is correct |
10 |
Correct |
291 ms |
295672 KB |
Output is correct |
11 |
Correct |
289 ms |
295544 KB |
Output is correct |
12 |
Correct |
299 ms |
295544 KB |
Output is correct |
13 |
Correct |
292 ms |
295032 KB |
Output is correct |
14 |
Correct |
286 ms |
295356 KB |
Output is correct |
15 |
Correct |
288 ms |
295288 KB |
Output is correct |
16 |
Correct |
286 ms |
295032 KB |
Output is correct |
17 |
Correct |
314 ms |
297464 KB |
Output is correct |
18 |
Correct |
295 ms |
297464 KB |
Output is correct |
19 |
Correct |
306 ms |
297504 KB |
Output is correct |
20 |
Correct |
292 ms |
296712 KB |
Output is correct |
21 |
Correct |
297 ms |
297256 KB |
Output is correct |
22 |
Correct |
295 ms |
297160 KB |
Output is correct |
23 |
Correct |
295 ms |
297208 KB |
Output is correct |
24 |
Correct |
292 ms |
296548 KB |
Output is correct |
25 |
Correct |
356 ms |
306424 KB |
Output is correct |
26 |
Correct |
356 ms |
306476 KB |
Output is correct |
27 |
Correct |
359 ms |
306504 KB |
Output is correct |
28 |
Correct |
317 ms |
301092 KB |
Output is correct |
29 |
Correct |
361 ms |
305072 KB |
Output is correct |
30 |
Correct |
356 ms |
305192 KB |
Output is correct |
31 |
Correct |
356 ms |
304632 KB |
Output is correct |
32 |
Correct |
350 ms |
304504 KB |
Output is correct |
33 |
Correct |
1263 ms |
396860 KB |
Output is correct |
34 |
Correct |
1134 ms |
396732 KB |
Output is correct |
35 |
Correct |
1127 ms |
396932 KB |
Output is correct |
36 |
Correct |
1125 ms |
396756 KB |
Output is correct |
37 |
Correct |
1491 ms |
414884 KB |
Output is correct |
38 |
Correct |
1594 ms |
414536 KB |
Output is correct |
39 |
Correct |
1514 ms |
414772 KB |
Output is correct |
40 |
Correct |
1491 ms |
407208 KB |
Output is correct |
41 |
Correct |
682 ms |
335432 KB |
Output is correct |
42 |
Correct |
929 ms |
346532 KB |
Output is correct |
43 |
Correct |
1772 ms |
394528 KB |
Output is correct |
44 |
Correct |
1790 ms |
395640 KB |
Output is correct |
45 |
Correct |
1008 ms |
349668 KB |
Output is correct |
46 |
Correct |
934 ms |
345484 KB |
Output is correct |
47 |
Correct |
2017 ms |
389388 KB |
Output is correct |
48 |
Correct |
1551 ms |
389780 KB |
Output is correct |
49 |
Correct |
292 ms |
296424 KB |
Output is correct |
50 |
Correct |
293 ms |
296196 KB |
Output is correct |
51 |
Correct |
287 ms |
295516 KB |
Output is correct |
52 |
Correct |
290 ms |
295112 KB |
Output is correct |
53 |
Correct |
296 ms |
296564 KB |
Output is correct |
54 |
Correct |
312 ms |
296580 KB |
Output is correct |
55 |
Correct |
293 ms |
296452 KB |
Output is correct |
56 |
Correct |
295 ms |
296456 KB |
Output is correct |
57 |
Correct |
305 ms |
296388 KB |
Output is correct |
58 |
Correct |
325 ms |
295448 KB |
Output is correct |
59 |
Correct |
289 ms |
295992 KB |
Output is correct |
60 |
Correct |
300 ms |
295296 KB |
Output is correct |
61 |
Correct |
3406 ms |
485628 KB |
Output is correct |
62 |
Execution timed out |
5126 ms |
597392 KB |
Time limit exceeded |
63 |
Halted |
0 ms |
0 KB |
- |