#include "rect.h"
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast,unroll-loops,inline")
#pragma GCC target("sse,sse2,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#define fs first
#define sc second
using namespace std;
typedef pair<int,int> pii;
namespace{
struct BIT{
int n;
vector<int> bt;
BIT(int x){
n=x;
bt.resize(x+1);
}
BIT(){
n=0;
}
void update(int x,int y){
for(;x<=n;x+=(x&-x)){
bt[x]+=y;
}
}
int query(int x){
int ans=0;
for(;x>0;x-=(x&-x)){
ans+=bt[x];
}
return ans;
}
}vb[2502];
}
int tag[2501][2501]={0},tag2[2501][2501]={0};
long long count_rectangles(vector<vector<int> > v) {
int n=v.size();
int m=v[0].size();
vector<vector<int> > tmp(m,vector<int>(n));
for(int i=0;i<n;i++){
for(int j=0;j<m;j++){
tmp[j][i]=v[i][j];
}
}
if(n<=2 || m<=2){
return 0;
}
swap(n,m);
v=tmp;
vector<pii> az[2502],bz[2502];
vector<pii> t1,t2;
for(int i=1;i<n-1;i++){
vector<pair<int,int> > gg;
vector<int> vis(m),up(m),down(m);
for(int j=0;j<m;j++){
gg.push_back({v[i][j],j});
}
sort(gg.begin(),gg.end());
for(auto h:gg){
int x=h.sc-1,y=h.sc+1;
int l=h.sc,r=h.sc;
if(x<0 || !vis[x]){
}
else{
l=up[x];
}
if(y>=m || !vis[y]){
}
else{
r=down[y];
}
vis[h.sc]=1;
up[h.sc]=l;
down[h.sc]=r;
down[l]=r;
up[r]=l;
if(l!=0 && r!=m-1 && (v[i][r+1]>h.fs && v[i][l-1]>h.fs)){
az[i].push_back({l,r});
}
}
}
for(int i=1;i<m-1;i++){
vector<pair<int,int> > gg;
vector<int> vis(n),up(n),down(n);
for(int j=0;j<n;j++){
gg.push_back({v[j][i],j});
}
sort(gg.begin(),gg.end());
for(auto h:gg){
int x=h.sc-1,y=h.sc+1;
int l=h.sc,r=h.sc;
if(x<0 || !vis[x]){
}
else{
l=up[x];
}
if(y>=n || !vis[y]){
}
else{
r=down[y];
}
vis[h.sc]=1;
up[h.sc]=l;
down[h.sc]=r;
down[l]=r;
up[r]=l;
if(l!=0 && r!=n-1 && (v[r+1][i]>h.fs && v[l-1][i]>h.fs)){
bz[i].push_back({l,r});
}
}
}
for(int i=0;i<2501;i++){
for(int j=0;j<2501;j++){
tag[i][j]=-1;
}
}
vector<pair<int,pii> > ev[2505];
for(int i=1;i<n-1;i++){
for(auto h:az[i]){
tag2[h.fs][h.sc]=1;
if(tag[h.fs][h.sc]==-1){
tag[h.fs][h.sc]=i;
}
}
if(i>1){
for(auto h:az[i-1]){
if(tag2[h.fs][h.sc]==0){
ev[h.fs].push_back({-h.sc,{tag[h.fs][h.sc],i-1}});
tag[h.fs][h.sc]=-1;
}
}
}
for(auto h:az[i]){
tag2[h.fs][h.sc]=0;
}
}
for(int i=0;i<2501;i++){
for(int j=0;j<2501;j++){
if(tag[i][j]!=-1){
ev[i].push_back({-j,{tag[i][j],n-2}});
tag[i][j]=-1;
}
}
}
for(int i=1;i<m-1;i++){
for(auto h:bz[i]){
tag2[h.fs][h.sc]=1;
if(tag[h.fs][h.sc]==-1){
tag[h.fs][h.sc]=i;
}
}
if(i>1){
for(auto h:bz[i-1]){
if(tag2[h.fs][h.sc]==0){
for(int j=tag[h.fs][h.sc];j<=i-1;j++){
ev[j].push_back({-(i-1),{-h.fs,-h.sc}});
}
tag[h.fs][h.sc]=-1;
}
}
}
for(auto h:bz[i]){
tag2[h.fs][h.sc]=0;
}
}
for(int i=0;i<2501;i++){
for(int j=0;j<2501;j++){
if(tag[i][j]!=-1){
for(int q=tag[i][j];q<m-1;q++){
ev[q].push_back({-(m-2),{-i,-j}});
}
tag[i][j]=-1;
}
}
}
// BIT vb[2502];
for(int i=0;i<n;i++){
vb[i]=BIT(n);
}
//vector<BIT> vb(n,BIT(n));
long long ans=0;
// for(int i=1;i<m-1;i++){
// sort(ev[i].begin(),ev[i].end());
// }
for(int i=1;i<m-1;i++){
sort(ev[i].begin(),ev[i].end());
for(auto h:ev[i]){
if(h.sc.sc>0){
for(int j=h.sc.fs;j<=h.sc.sc;j++){
ans+=vb[j].query(h.sc.sc);
}
}
else{
vb[-h.sc.fs].update(-h.sc.sc,1);
}
}
for(auto h:ev[i]){
if(h.sc.sc<0){
vb[-h.sc.fs].update(-h.sc.sc,-1);
}
}
}
return ans;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
18 ms |
25044 KB |
Output is correct |
2 |
Correct |
18 ms |
25172 KB |
Output is correct |
3 |
Correct |
18 ms |
25204 KB |
Output is correct |
4 |
Correct |
18 ms |
25204 KB |
Output is correct |
5 |
Correct |
19 ms |
25056 KB |
Output is correct |
6 |
Correct |
19 ms |
25116 KB |
Output is correct |
7 |
Correct |
19 ms |
25176 KB |
Output is correct |
8 |
Correct |
25 ms |
25172 KB |
Output is correct |
9 |
Correct |
19 ms |
25216 KB |
Output is correct |
10 |
Correct |
22 ms |
25204 KB |
Output is correct |
11 |
Correct |
19 ms |
25172 KB |
Output is correct |
12 |
Correct |
25 ms |
25172 KB |
Output is correct |
13 |
Correct |
1 ms |
468 KB |
Output is correct |
14 |
Correct |
1 ms |
468 KB |
Output is correct |
15 |
Correct |
20 ms |
25044 KB |
Output is correct |
16 |
Correct |
19 ms |
24976 KB |
Output is correct |
17 |
Correct |
1 ms |
468 KB |
Output is correct |
18 |
Correct |
1 ms |
468 KB |
Output is correct |
19 |
Correct |
19 ms |
25088 KB |
Output is correct |
20 |
Correct |
20 ms |
25048 KB |
Output is correct |
21 |
Correct |
1 ms |
508 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
18 ms |
25044 KB |
Output is correct |
2 |
Correct |
18 ms |
25172 KB |
Output is correct |
3 |
Correct |
18 ms |
25204 KB |
Output is correct |
4 |
Correct |
18 ms |
25204 KB |
Output is correct |
5 |
Correct |
19 ms |
25056 KB |
Output is correct |
6 |
Correct |
19 ms |
25116 KB |
Output is correct |
7 |
Correct |
19 ms |
25176 KB |
Output is correct |
8 |
Correct |
25 ms |
25172 KB |
Output is correct |
9 |
Correct |
19 ms |
25216 KB |
Output is correct |
10 |
Correct |
22 ms |
25204 KB |
Output is correct |
11 |
Correct |
19 ms |
25172 KB |
Output is correct |
12 |
Correct |
25 ms |
25172 KB |
Output is correct |
13 |
Correct |
1 ms |
468 KB |
Output is correct |
14 |
Correct |
1 ms |
468 KB |
Output is correct |
15 |
Correct |
20 ms |
25044 KB |
Output is correct |
16 |
Correct |
19 ms |
24976 KB |
Output is correct |
17 |
Correct |
1 ms |
468 KB |
Output is correct |
18 |
Correct |
1 ms |
468 KB |
Output is correct |
19 |
Correct |
19 ms |
25088 KB |
Output is correct |
20 |
Correct |
20 ms |
25048 KB |
Output is correct |
21 |
Correct |
1 ms |
508 KB |
Output is correct |
22 |
Correct |
21 ms |
25808 KB |
Output is correct |
23 |
Correct |
21 ms |
25732 KB |
Output is correct |
24 |
Correct |
23 ms |
25768 KB |
Output is correct |
25 |
Correct |
23 ms |
25568 KB |
Output is correct |
26 |
Correct |
21 ms |
25848 KB |
Output is correct |
27 |
Correct |
22 ms |
25864 KB |
Output is correct |
28 |
Correct |
21 ms |
25808 KB |
Output is correct |
29 |
Correct |
20 ms |
25556 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
18 ms |
25044 KB |
Output is correct |
2 |
Correct |
18 ms |
25172 KB |
Output is correct |
3 |
Correct |
18 ms |
25204 KB |
Output is correct |
4 |
Correct |
18 ms |
25204 KB |
Output is correct |
5 |
Correct |
19 ms |
25056 KB |
Output is correct |
6 |
Correct |
19 ms |
25116 KB |
Output is correct |
7 |
Correct |
19 ms |
25176 KB |
Output is correct |
8 |
Correct |
25 ms |
25172 KB |
Output is correct |
9 |
Correct |
19 ms |
25216 KB |
Output is correct |
10 |
Correct |
22 ms |
25204 KB |
Output is correct |
11 |
Correct |
19 ms |
25172 KB |
Output is correct |
12 |
Correct |
25 ms |
25172 KB |
Output is correct |
13 |
Correct |
1 ms |
468 KB |
Output is correct |
14 |
Correct |
1 ms |
468 KB |
Output is correct |
15 |
Correct |
20 ms |
25044 KB |
Output is correct |
16 |
Correct |
19 ms |
24976 KB |
Output is correct |
17 |
Correct |
21 ms |
25808 KB |
Output is correct |
18 |
Correct |
21 ms |
25732 KB |
Output is correct |
19 |
Correct |
23 ms |
25768 KB |
Output is correct |
20 |
Correct |
23 ms |
25568 KB |
Output is correct |
21 |
Correct |
21 ms |
25848 KB |
Output is correct |
22 |
Correct |
22 ms |
25864 KB |
Output is correct |
23 |
Correct |
21 ms |
25808 KB |
Output is correct |
24 |
Correct |
20 ms |
25556 KB |
Output is correct |
25 |
Correct |
1 ms |
468 KB |
Output is correct |
26 |
Correct |
1 ms |
468 KB |
Output is correct |
27 |
Correct |
19 ms |
25088 KB |
Output is correct |
28 |
Correct |
20 ms |
25048 KB |
Output is correct |
29 |
Correct |
1 ms |
508 KB |
Output is correct |
30 |
Correct |
28 ms |
28024 KB |
Output is correct |
31 |
Correct |
27 ms |
28120 KB |
Output is correct |
32 |
Correct |
28 ms |
28072 KB |
Output is correct |
33 |
Correct |
30 ms |
27532 KB |
Output is correct |
34 |
Correct |
41 ms |
28700 KB |
Output is correct |
35 |
Correct |
35 ms |
28876 KB |
Output is correct |
36 |
Correct |
33 ms |
28708 KB |
Output is correct |
37 |
Correct |
34 ms |
28664 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
18 ms |
25044 KB |
Output is correct |
2 |
Correct |
18 ms |
25172 KB |
Output is correct |
3 |
Correct |
18 ms |
25204 KB |
Output is correct |
4 |
Correct |
18 ms |
25204 KB |
Output is correct |
5 |
Correct |
19 ms |
25056 KB |
Output is correct |
6 |
Correct |
19 ms |
25116 KB |
Output is correct |
7 |
Correct |
19 ms |
25176 KB |
Output is correct |
8 |
Correct |
25 ms |
25172 KB |
Output is correct |
9 |
Correct |
19 ms |
25216 KB |
Output is correct |
10 |
Correct |
22 ms |
25204 KB |
Output is correct |
11 |
Correct |
19 ms |
25172 KB |
Output is correct |
12 |
Correct |
25 ms |
25172 KB |
Output is correct |
13 |
Correct |
1 ms |
468 KB |
Output is correct |
14 |
Correct |
1 ms |
468 KB |
Output is correct |
15 |
Correct |
20 ms |
25044 KB |
Output is correct |
16 |
Correct |
19 ms |
24976 KB |
Output is correct |
17 |
Correct |
21 ms |
25808 KB |
Output is correct |
18 |
Correct |
21 ms |
25732 KB |
Output is correct |
19 |
Correct |
23 ms |
25768 KB |
Output is correct |
20 |
Correct |
23 ms |
25568 KB |
Output is correct |
21 |
Correct |
21 ms |
25848 KB |
Output is correct |
22 |
Correct |
22 ms |
25864 KB |
Output is correct |
23 |
Correct |
21 ms |
25808 KB |
Output is correct |
24 |
Correct |
20 ms |
25556 KB |
Output is correct |
25 |
Correct |
28 ms |
28024 KB |
Output is correct |
26 |
Correct |
27 ms |
28120 KB |
Output is correct |
27 |
Correct |
28 ms |
28072 KB |
Output is correct |
28 |
Correct |
30 ms |
27532 KB |
Output is correct |
29 |
Correct |
41 ms |
28700 KB |
Output is correct |
30 |
Correct |
35 ms |
28876 KB |
Output is correct |
31 |
Correct |
33 ms |
28708 KB |
Output is correct |
32 |
Correct |
34 ms |
28664 KB |
Output is correct |
33 |
Correct |
1 ms |
468 KB |
Output is correct |
34 |
Correct |
1 ms |
468 KB |
Output is correct |
35 |
Correct |
19 ms |
25088 KB |
Output is correct |
36 |
Correct |
20 ms |
25048 KB |
Output is correct |
37 |
Correct |
1 ms |
508 KB |
Output is correct |
38 |
Correct |
148 ms |
53796 KB |
Output is correct |
39 |
Correct |
139 ms |
53872 KB |
Output is correct |
40 |
Correct |
116 ms |
53348 KB |
Output is correct |
41 |
Correct |
127 ms |
53236 KB |
Output is correct |
42 |
Correct |
156 ms |
58560 KB |
Output is correct |
43 |
Correct |
147 ms |
58532 KB |
Output is correct |
44 |
Correct |
155 ms |
58712 KB |
Output is correct |
45 |
Correct |
155 ms |
57548 KB |
Output is correct |
46 |
Correct |
131 ms |
43760 KB |
Output is correct |
47 |
Correct |
151 ms |
47632 KB |
Output is correct |
48 |
Correct |
243 ms |
64112 KB |
Output is correct |
49 |
Correct |
236 ms |
66492 KB |
Output is correct |
50 |
Correct |
132 ms |
47736 KB |
Output is correct |
51 |
Correct |
124 ms |
48048 KB |
Output is correct |
52 |
Correct |
212 ms |
61308 KB |
Output is correct |
53 |
Correct |
225 ms |
62028 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
39 ms |
59964 KB |
Output is correct |
2 |
Correct |
35 ms |
51516 KB |
Output is correct |
3 |
Correct |
34 ms |
49800 KB |
Output is correct |
4 |
Correct |
1 ms |
468 KB |
Output is correct |
5 |
Correct |
37 ms |
54884 KB |
Output is correct |
6 |
Correct |
39 ms |
55020 KB |
Output is correct |
7 |
Correct |
38 ms |
54840 KB |
Output is correct |
8 |
Correct |
38 ms |
54632 KB |
Output is correct |
9 |
Correct |
37 ms |
54400 KB |
Output is correct |
10 |
Correct |
1 ms |
596 KB |
Output is correct |
11 |
Correct |
1 ms |
724 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
468 KB |
Output is correct |
2 |
Correct |
1 ms |
468 KB |
Output is correct |
3 |
Correct |
19 ms |
25088 KB |
Output is correct |
4 |
Correct |
20 ms |
25048 KB |
Output is correct |
5 |
Correct |
1 ms |
508 KB |
Output is correct |
6 |
Correct |
21 ms |
25060 KB |
Output is correct |
7 |
Correct |
759 ms |
134188 KB |
Output is correct |
8 |
Correct |
1679 ms |
231768 KB |
Output is correct |
9 |
Correct |
1650 ms |
232616 KB |
Output is correct |
10 |
Correct |
1654 ms |
239320 KB |
Output is correct |
11 |
Correct |
301 ms |
91960 KB |
Output is correct |
12 |
Correct |
545 ms |
126536 KB |
Output is correct |
13 |
Correct |
564 ms |
135048 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
18 ms |
25044 KB |
Output is correct |
2 |
Correct |
18 ms |
25172 KB |
Output is correct |
3 |
Correct |
18 ms |
25204 KB |
Output is correct |
4 |
Correct |
18 ms |
25204 KB |
Output is correct |
5 |
Correct |
19 ms |
25056 KB |
Output is correct |
6 |
Correct |
19 ms |
25116 KB |
Output is correct |
7 |
Correct |
19 ms |
25176 KB |
Output is correct |
8 |
Correct |
25 ms |
25172 KB |
Output is correct |
9 |
Correct |
19 ms |
25216 KB |
Output is correct |
10 |
Correct |
22 ms |
25204 KB |
Output is correct |
11 |
Correct |
19 ms |
25172 KB |
Output is correct |
12 |
Correct |
25 ms |
25172 KB |
Output is correct |
13 |
Correct |
1 ms |
468 KB |
Output is correct |
14 |
Correct |
1 ms |
468 KB |
Output is correct |
15 |
Correct |
20 ms |
25044 KB |
Output is correct |
16 |
Correct |
19 ms |
24976 KB |
Output is correct |
17 |
Correct |
21 ms |
25808 KB |
Output is correct |
18 |
Correct |
21 ms |
25732 KB |
Output is correct |
19 |
Correct |
23 ms |
25768 KB |
Output is correct |
20 |
Correct |
23 ms |
25568 KB |
Output is correct |
21 |
Correct |
21 ms |
25848 KB |
Output is correct |
22 |
Correct |
22 ms |
25864 KB |
Output is correct |
23 |
Correct |
21 ms |
25808 KB |
Output is correct |
24 |
Correct |
20 ms |
25556 KB |
Output is correct |
25 |
Correct |
28 ms |
28024 KB |
Output is correct |
26 |
Correct |
27 ms |
28120 KB |
Output is correct |
27 |
Correct |
28 ms |
28072 KB |
Output is correct |
28 |
Correct |
30 ms |
27532 KB |
Output is correct |
29 |
Correct |
41 ms |
28700 KB |
Output is correct |
30 |
Correct |
35 ms |
28876 KB |
Output is correct |
31 |
Correct |
33 ms |
28708 KB |
Output is correct |
32 |
Correct |
34 ms |
28664 KB |
Output is correct |
33 |
Correct |
148 ms |
53796 KB |
Output is correct |
34 |
Correct |
139 ms |
53872 KB |
Output is correct |
35 |
Correct |
116 ms |
53348 KB |
Output is correct |
36 |
Correct |
127 ms |
53236 KB |
Output is correct |
37 |
Correct |
156 ms |
58560 KB |
Output is correct |
38 |
Correct |
147 ms |
58532 KB |
Output is correct |
39 |
Correct |
155 ms |
58712 KB |
Output is correct |
40 |
Correct |
155 ms |
57548 KB |
Output is correct |
41 |
Correct |
131 ms |
43760 KB |
Output is correct |
42 |
Correct |
151 ms |
47632 KB |
Output is correct |
43 |
Correct |
243 ms |
64112 KB |
Output is correct |
44 |
Correct |
236 ms |
66492 KB |
Output is correct |
45 |
Correct |
132 ms |
47736 KB |
Output is correct |
46 |
Correct |
124 ms |
48048 KB |
Output is correct |
47 |
Correct |
212 ms |
61308 KB |
Output is correct |
48 |
Correct |
225 ms |
62028 KB |
Output is correct |
49 |
Correct |
39 ms |
59964 KB |
Output is correct |
50 |
Correct |
35 ms |
51516 KB |
Output is correct |
51 |
Correct |
34 ms |
49800 KB |
Output is correct |
52 |
Correct |
1 ms |
468 KB |
Output is correct |
53 |
Correct |
37 ms |
54884 KB |
Output is correct |
54 |
Correct |
39 ms |
55020 KB |
Output is correct |
55 |
Correct |
38 ms |
54840 KB |
Output is correct |
56 |
Correct |
38 ms |
54632 KB |
Output is correct |
57 |
Correct |
37 ms |
54400 KB |
Output is correct |
58 |
Correct |
1 ms |
596 KB |
Output is correct |
59 |
Correct |
1 ms |
724 KB |
Output is correct |
60 |
Correct |
21 ms |
25060 KB |
Output is correct |
61 |
Correct |
759 ms |
134188 KB |
Output is correct |
62 |
Correct |
1679 ms |
231768 KB |
Output is correct |
63 |
Correct |
1650 ms |
232616 KB |
Output is correct |
64 |
Correct |
1654 ms |
239320 KB |
Output is correct |
65 |
Correct |
301 ms |
91960 KB |
Output is correct |
66 |
Correct |
545 ms |
126536 KB |
Output is correct |
67 |
Correct |
564 ms |
135048 KB |
Output is correct |
68 |
Correct |
1 ms |
468 KB |
Output is correct |
69 |
Correct |
1 ms |
468 KB |
Output is correct |
70 |
Correct |
19 ms |
25088 KB |
Output is correct |
71 |
Correct |
20 ms |
25048 KB |
Output is correct |
72 |
Correct |
1 ms |
508 KB |
Output is correct |
73 |
Correct |
1861 ms |
310724 KB |
Output is correct |
74 |
Correct |
1690 ms |
315532 KB |
Output is correct |
75 |
Correct |
1448 ms |
314312 KB |
Output is correct |
76 |
Correct |
1501 ms |
314112 KB |
Output is correct |
77 |
Correct |
2129 ms |
364940 KB |
Output is correct |
78 |
Correct |
2130 ms |
305640 KB |
Output is correct |
79 |
Correct |
2003 ms |
286984 KB |
Output is correct |
80 |
Correct |
3656 ms |
438644 KB |
Output is correct |
81 |
Correct |
1981 ms |
304208 KB |
Output is correct |
82 |
Correct |
2602 ms |
335460 KB |
Output is correct |
83 |
Correct |
3433 ms |
457160 KB |
Output is correct |
84 |
Correct |
1798 ms |
258336 KB |
Output is correct |
85 |
Correct |
3092 ms |
385692 KB |
Output is correct |
86 |
Correct |
3045 ms |
379684 KB |
Output is correct |
87 |
Correct |
1257 ms |
233312 KB |
Output is correct |
88 |
Correct |
2091 ms |
363940 KB |
Output is correct |
89 |
Correct |
2135 ms |
363572 KB |
Output is correct |
90 |
Correct |
2148 ms |
363616 KB |
Output is correct |