#include "rect.h"
#include <bits/stdc++.h>
using namespace std;
void debug_out() {cerr<<endl;}
template <typename Head, typename... Tail>
void debug_out(Head _H, Tail... _T) {cerr<<" "<<to_string(_H);debug_out(_T...);}
#define debug(...) cerr<<"["<<#__VA_ARGS__<<"]:",debug_out(__VA_ARGS__)
const int MAXN = 2505;
const int inf=1000000500ll;
const long long oo =1000000000000000500ll;
const int MOD = (int)1e9 + 7;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
typedef pair<int,int> pi;
int n,m;
long long ans;
struct fenw {
int fw[MAXN];
void update(int x, int nval){
for(;x<MAXN;x+=x&-x)fw[x]+=nval;
}
int point(int x){
int res=0;
for(;x;x-=x&-x)res+=fw[x];
return res;
}
int query(int x, int y){
return point(y)-point(x-1);
}
}fw;
vector<int> vxi[MAXN][MAXN];
vector<int> vyi[MAXN][MAXN];
vector<pi> H[MAXN][MAXN];
vector<pi> V[MAXN][MAXN];
long long count_rectangles(std::vector<std::vector<int> > A) {
n=A.size();
m=A[0].size();
for(int i=1;i<=n;i++){
vector<pi> E;
for(int j=1;j<=m;j++){
E.push_back({A[i-1][j-1],j});
}
sort(E.begin(),E.end(),greater<pi>());
set<int> s;
vector<int> lazy;
int pre=-1;
set<pi> st;
for(auto x:E){
if(x.first!=pre){
for(auto y:lazy){
s.insert(y);
}
lazy.clear();
}
//debug(x.first,x.second);
auto it=s.lower_bound(x.second);
if(it == s.begin() || it==s.end());
else {
int L=*prev(it);
int R=*it;
st.insert({L+1,R-1});
}
lazy.push_back(x.second);
pre=x.first;
}
for(auto x:st){
int L=x.first;
int R=x.second;
vyi[L][R].push_back(i);
}
}
for(int i=1;i<=m;i++){
vector<pi> E;
for(int j=1;j<=n;j++){
E.push_back({A[j-1][i-1],j});
}
sort(E.begin(),E.end(),greater<pi>());
set<int> s;
vector<int> lazy;
int pre=-1;
set<pi> st;
for(auto x:E){
if(x.first!=pre){
for(auto y:lazy){
s.insert(y);
}
lazy.clear();
}
//debug(x.first,x.second);
auto it=s.lower_bound(x.second);
if(it == s.begin() || it==s.end());
else {
int L=*prev(it);
int R=*it;
//vxi[L][R].push_back(i);
st.insert({L+1,R-1});
}
lazy.push_back(x.second);
pre=x.first;
}
for(auto x:st){
int L=x.first;
int R=x.second;
vxi[L][R].push_back(i);
}
}
for(int i=1;i<=n;i++){
for(int j=i;j<=n;j++){
int st=0;
for(int k=0;k<(int)vxi[i][j].size();k++){
//debug(i,j,k,vxi[i][j][k]);
int col=vxi[i][j][k];
V[j][col].push_back({i,vxi[i][j][st]});
if(k==((int)vxi[i][j].size()-1) || vxi[i][j][k]+1!=vxi[i][j][k+1]){
//vx[i][j].push_back({vxi[i][j][st],vxi[i][j][k]});
st=k+1;
} else{
}
}
}
}
for(int i=1;i<=m;i++){
for(int j=i;j<=m;j++){
int st=0;
for(int k=0;k<(int)vyi[i][j].size();k++){
int row=vyi[i][j][k];
H[row][j].push_back({vyi[i][j][st],i});
if(k==((int)vyi[i][j].size()-1) || vyi[i][j][k]+1!=vyi[i][j][k+1]){
//vy[i][j].push_back({vyi[i][j][st],vyi[i][j][k]});
st=k+1;
} else{
}
}
}
}
for(int i=2;i<=n-1;i++){
for(int j=2;j<=m-1;j++){
// try this guy as the bottom right corner
sort(H[i][j].begin(),H[i][j].end(),[](pi x, pi y) { return x.second>y.second; });
sort(V[i][j].begin(),V[i][j].end(),[](pi x, pi y) { return x.second>y.second; });
//debug(i,j);
//cerr<<"H:";
//for(auto x:H[i][j]){
// cerr<<"{"<<x.first<<","<<x.second<<"}, ";
//}
//cerr<<endl;
//cerr<<"V:";
//for(auto x:V[i][j]){
// cerr<<"{"<<x.first<<","<<x.second<<"}, ";
//}
//cerr<<endl;
int idx=0;
//if(V[i][j].size() && H[i][j].size())debug(V[i][j][0].second,H[i][j][0].second);
for(int k=0;k<(int)V[i][j].size();k++){
while(idx<(int)H[i][j].size() && H[i][j][idx].second >= V[i][j][k].second) {
fw.update(H[i][j][idx].first,1);
++idx;
}
//debug(i,j,fw.query(1, V[i][j][k].first));
ans+=fw.query(1, V[i][j][k].first);
}
for(int k=0;k<idx;k++){
fw.update(H[i][j][k].first,-1);
}
}
}
return ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
232 ms |
589728 KB |
Output is correct |
2 |
Correct |
207 ms |
589820 KB |
Output is correct |
3 |
Correct |
196 ms |
589908 KB |
Output is correct |
4 |
Correct |
202 ms |
589904 KB |
Output is correct |
5 |
Correct |
180 ms |
589652 KB |
Output is correct |
6 |
Correct |
171 ms |
589872 KB |
Output is correct |
7 |
Correct |
184 ms |
589908 KB |
Output is correct |
8 |
Correct |
174 ms |
589964 KB |
Output is correct |
9 |
Correct |
168 ms |
589904 KB |
Output is correct |
10 |
Correct |
184 ms |
589792 KB |
Output is correct |
11 |
Correct |
171 ms |
589908 KB |
Output is correct |
12 |
Correct |
168 ms |
589904 KB |
Output is correct |
13 |
Correct |
169 ms |
589800 KB |
Output is correct |
14 |
Correct |
169 ms |
589636 KB |
Output is correct |
15 |
Correct |
167 ms |
589768 KB |
Output is correct |
16 |
Correct |
167 ms |
589648 KB |
Output is correct |
17 |
Correct |
167 ms |
589728 KB |
Output is correct |
18 |
Correct |
168 ms |
589856 KB |
Output is correct |
19 |
Correct |
170 ms |
589656 KB |
Output is correct |
20 |
Correct |
167 ms |
589772 KB |
Output is correct |
21 |
Correct |
171 ms |
589936 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
232 ms |
589728 KB |
Output is correct |
2 |
Correct |
207 ms |
589820 KB |
Output is correct |
3 |
Correct |
196 ms |
589908 KB |
Output is correct |
4 |
Correct |
202 ms |
589904 KB |
Output is correct |
5 |
Correct |
180 ms |
589652 KB |
Output is correct |
6 |
Correct |
171 ms |
589872 KB |
Output is correct |
7 |
Correct |
184 ms |
589908 KB |
Output is correct |
8 |
Correct |
174 ms |
589964 KB |
Output is correct |
9 |
Correct |
168 ms |
589904 KB |
Output is correct |
10 |
Correct |
184 ms |
589792 KB |
Output is correct |
11 |
Correct |
171 ms |
589908 KB |
Output is correct |
12 |
Correct |
168 ms |
589904 KB |
Output is correct |
13 |
Correct |
169 ms |
589800 KB |
Output is correct |
14 |
Correct |
169 ms |
589636 KB |
Output is correct |
15 |
Correct |
167 ms |
589768 KB |
Output is correct |
16 |
Correct |
167 ms |
589648 KB |
Output is correct |
17 |
Correct |
167 ms |
589728 KB |
Output is correct |
18 |
Correct |
168 ms |
589856 KB |
Output is correct |
19 |
Correct |
170 ms |
589656 KB |
Output is correct |
20 |
Correct |
167 ms |
589772 KB |
Output is correct |
21 |
Correct |
171 ms |
589936 KB |
Output is correct |
22 |
Correct |
177 ms |
590168 KB |
Output is correct |
23 |
Correct |
169 ms |
590160 KB |
Output is correct |
24 |
Correct |
173 ms |
590220 KB |
Output is correct |
25 |
Correct |
171 ms |
589908 KB |
Output is correct |
26 |
Correct |
187 ms |
590120 KB |
Output is correct |
27 |
Correct |
171 ms |
590156 KB |
Output is correct |
28 |
Correct |
173 ms |
590252 KB |
Output is correct |
29 |
Correct |
168 ms |
589904 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
232 ms |
589728 KB |
Output is correct |
2 |
Correct |
207 ms |
589820 KB |
Output is correct |
3 |
Correct |
196 ms |
589908 KB |
Output is correct |
4 |
Correct |
202 ms |
589904 KB |
Output is correct |
5 |
Correct |
180 ms |
589652 KB |
Output is correct |
6 |
Correct |
171 ms |
589872 KB |
Output is correct |
7 |
Correct |
184 ms |
589908 KB |
Output is correct |
8 |
Correct |
174 ms |
589964 KB |
Output is correct |
9 |
Correct |
168 ms |
589904 KB |
Output is correct |
10 |
Correct |
184 ms |
589792 KB |
Output is correct |
11 |
Correct |
171 ms |
589908 KB |
Output is correct |
12 |
Correct |
168 ms |
589904 KB |
Output is correct |
13 |
Correct |
169 ms |
589800 KB |
Output is correct |
14 |
Correct |
169 ms |
589636 KB |
Output is correct |
15 |
Correct |
167 ms |
589768 KB |
Output is correct |
16 |
Correct |
167 ms |
589648 KB |
Output is correct |
17 |
Correct |
177 ms |
590168 KB |
Output is correct |
18 |
Correct |
169 ms |
590160 KB |
Output is correct |
19 |
Correct |
173 ms |
590220 KB |
Output is correct |
20 |
Correct |
171 ms |
589908 KB |
Output is correct |
21 |
Correct |
187 ms |
590120 KB |
Output is correct |
22 |
Correct |
171 ms |
590156 KB |
Output is correct |
23 |
Correct |
173 ms |
590252 KB |
Output is correct |
24 |
Correct |
168 ms |
589904 KB |
Output is correct |
25 |
Correct |
167 ms |
589728 KB |
Output is correct |
26 |
Correct |
168 ms |
589856 KB |
Output is correct |
27 |
Correct |
170 ms |
589656 KB |
Output is correct |
28 |
Correct |
167 ms |
589772 KB |
Output is correct |
29 |
Correct |
171 ms |
589936 KB |
Output is correct |
30 |
Correct |
198 ms |
591696 KB |
Output is correct |
31 |
Correct |
205 ms |
591444 KB |
Output is correct |
32 |
Correct |
188 ms |
591700 KB |
Output is correct |
33 |
Correct |
200 ms |
591156 KB |
Output is correct |
34 |
Correct |
201 ms |
592208 KB |
Output is correct |
35 |
Correct |
219 ms |
592516 KB |
Output is correct |
36 |
Correct |
206 ms |
592200 KB |
Output is correct |
37 |
Correct |
223 ms |
592316 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
232 ms |
589728 KB |
Output is correct |
2 |
Correct |
207 ms |
589820 KB |
Output is correct |
3 |
Correct |
196 ms |
589908 KB |
Output is correct |
4 |
Correct |
202 ms |
589904 KB |
Output is correct |
5 |
Correct |
180 ms |
589652 KB |
Output is correct |
6 |
Correct |
171 ms |
589872 KB |
Output is correct |
7 |
Correct |
184 ms |
589908 KB |
Output is correct |
8 |
Correct |
174 ms |
589964 KB |
Output is correct |
9 |
Correct |
168 ms |
589904 KB |
Output is correct |
10 |
Correct |
184 ms |
589792 KB |
Output is correct |
11 |
Correct |
171 ms |
589908 KB |
Output is correct |
12 |
Correct |
168 ms |
589904 KB |
Output is correct |
13 |
Correct |
169 ms |
589800 KB |
Output is correct |
14 |
Correct |
169 ms |
589636 KB |
Output is correct |
15 |
Correct |
167 ms |
589768 KB |
Output is correct |
16 |
Correct |
167 ms |
589648 KB |
Output is correct |
17 |
Correct |
177 ms |
590168 KB |
Output is correct |
18 |
Correct |
169 ms |
590160 KB |
Output is correct |
19 |
Correct |
173 ms |
590220 KB |
Output is correct |
20 |
Correct |
171 ms |
589908 KB |
Output is correct |
21 |
Correct |
187 ms |
590120 KB |
Output is correct |
22 |
Correct |
171 ms |
590156 KB |
Output is correct |
23 |
Correct |
173 ms |
590252 KB |
Output is correct |
24 |
Correct |
168 ms |
589904 KB |
Output is correct |
25 |
Correct |
198 ms |
591696 KB |
Output is correct |
26 |
Correct |
205 ms |
591444 KB |
Output is correct |
27 |
Correct |
188 ms |
591700 KB |
Output is correct |
28 |
Correct |
200 ms |
591156 KB |
Output is correct |
29 |
Correct |
201 ms |
592208 KB |
Output is correct |
30 |
Correct |
219 ms |
592516 KB |
Output is correct |
31 |
Correct |
206 ms |
592200 KB |
Output is correct |
32 |
Correct |
223 ms |
592316 KB |
Output is correct |
33 |
Correct |
167 ms |
589728 KB |
Output is correct |
34 |
Correct |
168 ms |
589856 KB |
Output is correct |
35 |
Correct |
170 ms |
589656 KB |
Output is correct |
36 |
Correct |
167 ms |
589772 KB |
Output is correct |
37 |
Correct |
171 ms |
589936 KB |
Output is correct |
38 |
Correct |
412 ms |
617984 KB |
Output is correct |
39 |
Correct |
423 ms |
622504 KB |
Output is correct |
40 |
Correct |
417 ms |
622668 KB |
Output is correct |
41 |
Correct |
413 ms |
627436 KB |
Output is correct |
42 |
Correct |
422 ms |
613972 KB |
Output is correct |
43 |
Correct |
418 ms |
613796 KB |
Output is correct |
44 |
Correct |
425 ms |
614116 KB |
Output is correct |
45 |
Correct |
418 ms |
613480 KB |
Output is correct |
46 |
Correct |
337 ms |
603728 KB |
Output is correct |
47 |
Correct |
424 ms |
607240 KB |
Output is correct |
48 |
Correct |
722 ms |
619992 KB |
Output is correct |
49 |
Correct |
661 ms |
622192 KB |
Output is correct |
50 |
Correct |
410 ms |
605908 KB |
Output is correct |
51 |
Correct |
404 ms |
606116 KB |
Output is correct |
52 |
Correct |
670 ms |
618512 KB |
Output is correct |
53 |
Correct |
625 ms |
619348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
173 ms |
590280 KB |
Output is correct |
2 |
Correct |
170 ms |
590176 KB |
Output is correct |
3 |
Correct |
173 ms |
589812 KB |
Output is correct |
4 |
Correct |
166 ms |
589908 KB |
Output is correct |
5 |
Correct |
174 ms |
590420 KB |
Output is correct |
6 |
Correct |
174 ms |
590236 KB |
Output is correct |
7 |
Correct |
178 ms |
590312 KB |
Output is correct |
8 |
Correct |
179 ms |
590592 KB |
Output is correct |
9 |
Correct |
173 ms |
590380 KB |
Output is correct |
10 |
Correct |
176 ms |
590152 KB |
Output is correct |
11 |
Correct |
176 ms |
590164 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
167 ms |
589728 KB |
Output is correct |
2 |
Correct |
168 ms |
589856 KB |
Output is correct |
3 |
Correct |
170 ms |
589656 KB |
Output is correct |
4 |
Correct |
167 ms |
589772 KB |
Output is correct |
5 |
Correct |
171 ms |
589936 KB |
Output is correct |
6 |
Correct |
162 ms |
589648 KB |
Output is correct |
7 |
Correct |
1307 ms |
672668 KB |
Output is correct |
8 |
Correct |
2843 ms |
768588 KB |
Output is correct |
9 |
Correct |
2746 ms |
769508 KB |
Output is correct |
10 |
Correct |
2793 ms |
769760 KB |
Output is correct |
11 |
Correct |
349 ms |
620116 KB |
Output is correct |
12 |
Correct |
506 ms |
647648 KB |
Output is correct |
13 |
Correct |
521 ms |
651444 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
232 ms |
589728 KB |
Output is correct |
2 |
Correct |
207 ms |
589820 KB |
Output is correct |
3 |
Correct |
196 ms |
589908 KB |
Output is correct |
4 |
Correct |
202 ms |
589904 KB |
Output is correct |
5 |
Correct |
180 ms |
589652 KB |
Output is correct |
6 |
Correct |
171 ms |
589872 KB |
Output is correct |
7 |
Correct |
184 ms |
589908 KB |
Output is correct |
8 |
Correct |
174 ms |
589964 KB |
Output is correct |
9 |
Correct |
168 ms |
589904 KB |
Output is correct |
10 |
Correct |
184 ms |
589792 KB |
Output is correct |
11 |
Correct |
171 ms |
589908 KB |
Output is correct |
12 |
Correct |
168 ms |
589904 KB |
Output is correct |
13 |
Correct |
169 ms |
589800 KB |
Output is correct |
14 |
Correct |
169 ms |
589636 KB |
Output is correct |
15 |
Correct |
167 ms |
589768 KB |
Output is correct |
16 |
Correct |
167 ms |
589648 KB |
Output is correct |
17 |
Correct |
177 ms |
590168 KB |
Output is correct |
18 |
Correct |
169 ms |
590160 KB |
Output is correct |
19 |
Correct |
173 ms |
590220 KB |
Output is correct |
20 |
Correct |
171 ms |
589908 KB |
Output is correct |
21 |
Correct |
187 ms |
590120 KB |
Output is correct |
22 |
Correct |
171 ms |
590156 KB |
Output is correct |
23 |
Correct |
173 ms |
590252 KB |
Output is correct |
24 |
Correct |
168 ms |
589904 KB |
Output is correct |
25 |
Correct |
198 ms |
591696 KB |
Output is correct |
26 |
Correct |
205 ms |
591444 KB |
Output is correct |
27 |
Correct |
188 ms |
591700 KB |
Output is correct |
28 |
Correct |
200 ms |
591156 KB |
Output is correct |
29 |
Correct |
201 ms |
592208 KB |
Output is correct |
30 |
Correct |
219 ms |
592516 KB |
Output is correct |
31 |
Correct |
206 ms |
592200 KB |
Output is correct |
32 |
Correct |
223 ms |
592316 KB |
Output is correct |
33 |
Correct |
412 ms |
617984 KB |
Output is correct |
34 |
Correct |
423 ms |
622504 KB |
Output is correct |
35 |
Correct |
417 ms |
622668 KB |
Output is correct |
36 |
Correct |
413 ms |
627436 KB |
Output is correct |
37 |
Correct |
422 ms |
613972 KB |
Output is correct |
38 |
Correct |
418 ms |
613796 KB |
Output is correct |
39 |
Correct |
425 ms |
614116 KB |
Output is correct |
40 |
Correct |
418 ms |
613480 KB |
Output is correct |
41 |
Correct |
337 ms |
603728 KB |
Output is correct |
42 |
Correct |
424 ms |
607240 KB |
Output is correct |
43 |
Correct |
722 ms |
619992 KB |
Output is correct |
44 |
Correct |
661 ms |
622192 KB |
Output is correct |
45 |
Correct |
410 ms |
605908 KB |
Output is correct |
46 |
Correct |
404 ms |
606116 KB |
Output is correct |
47 |
Correct |
670 ms |
618512 KB |
Output is correct |
48 |
Correct |
625 ms |
619348 KB |
Output is correct |
49 |
Correct |
173 ms |
590280 KB |
Output is correct |
50 |
Correct |
170 ms |
590176 KB |
Output is correct |
51 |
Correct |
173 ms |
589812 KB |
Output is correct |
52 |
Correct |
166 ms |
589908 KB |
Output is correct |
53 |
Correct |
174 ms |
590420 KB |
Output is correct |
54 |
Correct |
174 ms |
590236 KB |
Output is correct |
55 |
Correct |
178 ms |
590312 KB |
Output is correct |
56 |
Correct |
179 ms |
590592 KB |
Output is correct |
57 |
Correct |
173 ms |
590380 KB |
Output is correct |
58 |
Correct |
176 ms |
590152 KB |
Output is correct |
59 |
Correct |
176 ms |
590164 KB |
Output is correct |
60 |
Correct |
162 ms |
589648 KB |
Output is correct |
61 |
Correct |
1307 ms |
672668 KB |
Output is correct |
62 |
Correct |
2843 ms |
768588 KB |
Output is correct |
63 |
Correct |
2746 ms |
769508 KB |
Output is correct |
64 |
Correct |
2793 ms |
769760 KB |
Output is correct |
65 |
Correct |
349 ms |
620116 KB |
Output is correct |
66 |
Correct |
506 ms |
647648 KB |
Output is correct |
67 |
Correct |
521 ms |
651444 KB |
Output is correct |
68 |
Correct |
167 ms |
589728 KB |
Output is correct |
69 |
Correct |
168 ms |
589856 KB |
Output is correct |
70 |
Correct |
170 ms |
589656 KB |
Output is correct |
71 |
Correct |
167 ms |
589772 KB |
Output is correct |
72 |
Correct |
171 ms |
589936 KB |
Output is correct |
73 |
Correct |
4476 ms |
944728 KB |
Output is correct |
74 |
Correct |
4257 ms |
1008532 KB |
Output is correct |
75 |
Correct |
3834 ms |
1011788 KB |
Output is correct |
76 |
Correct |
3556 ms |
1048576 KB |
Output is correct |
77 |
Correct |
3903 ms |
900864 KB |
Output is correct |
78 |
Execution timed out |
5107 ms |
817512 KB |
Time limit exceeded |
79 |
Halted |
0 ms |
0 KB |
- |