# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
154555 |
2019-09-22T17:25:30 Z |
Dormi |
Rectangles (IOI19_rect) |
C++14 |
|
4348 ms |
781840 KB |
#include <bits/stdc++.h>
using namespace std;
typedef pair<int,int> pii;
const int MAXN=2500;
int bit[MAXN+1];
int n,m;
vector<pii> rowranges[MAXN][MAXN];
vector<pii> colranges[MAXN][MAXN];
int preloc[MAXN];
int sufloc[MAXN];
pii deq[MAXN];
inline void update(int loc, int val){
for(;loc<=n;loc+=loc&-loc)bit[loc]+=val;
}
inline int sum(int loc){
int ans=0;
for(;loc>0;loc-=loc&-loc)ans+=bit[loc];
return ans;
}
long long count_rectangles(std::vector<std::vector<int>> a){
n=a.size();
m=a[0].size();
for(int i=0;i<n;i++){
int l=0,r=-1;
for(int j=m-1;j>=0;j--){
while(r>=l&&deq[r].second<=a[i][j])r--;
if(r>=l)sufloc[j]=deq[r].first;
else sufloc[j]=-1;
deq[++r]={j,a[i][j]};
}
l=0,r=-1;
for(int j=0;j<m;j++){
while(r>=l&&deq[r].second<=a[i][j])r--;
if(r>=l)preloc[j]=deq[r].first;
else preloc[j]=-1;
deq[++r]={j,a[i][j]};
if(preloc[j]!=-1&&sufloc[j]!=-1){
while(rowranges[i][preloc[j]+1].size()&&rowranges[i][preloc[j]+1].back().first==sufloc[j]-1)rowranges[i][preloc[j]+1].pop_back();
rowranges[i][preloc[j]+1].emplace_back(sufloc[j]-1,1);
}
}
}
for(int i=0;i<m;i++){
int l=0,r=-1;
for(int j=n-1;j>=0;j--){
while(r>=l&&deq[r].second<=a[j][i])r--;
if(r>=l)sufloc[j]=deq[r].first;
else sufloc[j]=-1;
deq[++r]={j,a[j][i]};
}
l=0,r=-1;
for(int j=0;j<n;j++){
while(r>=l&&deq[r].second<=a[j][i])r--;
if(r>=l)preloc[j]=deq[r].first;
else preloc[j]=-1;
deq[++r]={j,a[j][i]};
if(preloc[j]!=-1&&sufloc[j]!=-1){
while(colranges[preloc[j]+1][i].size()&&colranges[preloc[j]+1][i].back().first==sufloc[j]-1)colranges[preloc[j]+1][i].pop_back();
colranges[preloc[j]+1][i].emplace_back(sufloc[j]-1,1);
}
}
}
for(int i=0;i<m;i++){
for(int j=n-2;j>=0;j--){
int l=0,r=0;
while(l<rowranges[j][i].size()&&r<rowranges[j+1][i].size()){
if(rowranges[j][i][l].first==rowranges[j+1][i][r].first){
rowranges[j][i][l].second+=rowranges[j+1][i][r].second;
l++;
}
else if(rowranges[j][i][l].first>rowranges[j+1][i][r].first){
r++;
}
else l++;
}
}
}
for(int i=0;i<n;i++){
for(int j=m-2;j>=0;j--){
int l=0,r=0;
while(l<colranges[i][j].size()&&r<colranges[i][j+1].size()){
if(colranges[i][j][l].first==colranges[i][j+1][r].first){
colranges[i][j][l].second+=colranges[i][j+1][r].second;
l++;
}
else if(colranges[i][j][l].first>colranges[i][j+1][r].first){
r++;
}
else l++;
}
}
}
int cnt=0;
auto f = [&] (const pii& a, const pii& b) {
return a.second<b.second;
};
for(int i=0;i<n;i++)for(int j=0;j<m;j++){
sort(colranges[i][j].begin(),colranges[i][j].end(),f);
int r=colranges[i][j].size();
for(int k=(int)rowranges[i][j].size()-1;k>=0;k--){
while(r>0&&colranges[i][j][r-1].second+j-1>=rowranges[i][j][k].first){
r-=1;
update(colranges[i][j][r].first+1,1);
}
cnt+=sum(rowranges[i][j][k].second+i);
}
for(int k=r;k<colranges[i][j].size();k++)update(colranges[i][j][k].first+1,-1);
}
return cnt;
}
Compilation message
rect.cpp: In function 'long long int count_rectangles(std::vector<std::vector<int> >)':
rect.cpp:66:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
while(l<rowranges[j][i].size()&&r<rowranges[j+1][i].size()){
~^~~~~~~~~~~~~~~~~~~~~~~
rect.cpp:66:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
while(l<rowranges[j][i].size()&&r<rowranges[j+1][i].size()){
~^~~~~~~~~~~~~~~~~~~~~~~~~
rect.cpp:81:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
while(l<colranges[i][j].size()&&r<colranges[i][j+1].size()){
~^~~~~~~~~~~~~~~~~~~~~~~
rect.cpp:81:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
while(l<colranges[i][j].size()&&r<colranges[i][j+1].size()){
~^~~~~~~~~~~~~~~~~~~~~~~~~
rect.cpp:107:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int k=r;k<colranges[i][j].size();k++)update(colranges[i][j][k].first+1,-1);
~^~~~~~~~~~~~~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
273 ms |
293880 KB |
Output is correct |
2 |
Correct |
286 ms |
293888 KB |
Output is correct |
3 |
Correct |
303 ms |
294008 KB |
Output is correct |
4 |
Correct |
271 ms |
294068 KB |
Output is correct |
5 |
Correct |
270 ms |
293880 KB |
Output is correct |
6 |
Correct |
271 ms |
293884 KB |
Output is correct |
7 |
Correct |
273 ms |
293912 KB |
Output is correct |
8 |
Correct |
298 ms |
293864 KB |
Output is correct |
9 |
Correct |
270 ms |
293880 KB |
Output is correct |
10 |
Correct |
270 ms |
294024 KB |
Output is correct |
11 |
Correct |
270 ms |
293880 KB |
Output is correct |
12 |
Correct |
272 ms |
294008 KB |
Output is correct |
13 |
Correct |
281 ms |
294072 KB |
Output is correct |
14 |
Correct |
271 ms |
293928 KB |
Output is correct |
15 |
Correct |
272 ms |
293880 KB |
Output is correct |
16 |
Correct |
270 ms |
293880 KB |
Output is correct |
17 |
Correct |
271 ms |
293840 KB |
Output is correct |
18 |
Correct |
274 ms |
293880 KB |
Output is correct |
19 |
Correct |
271 ms |
293828 KB |
Output is correct |
20 |
Correct |
270 ms |
293880 KB |
Output is correct |
21 |
Correct |
271 ms |
293880 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
273 ms |
293880 KB |
Output is correct |
2 |
Correct |
286 ms |
293888 KB |
Output is correct |
3 |
Correct |
303 ms |
294008 KB |
Output is correct |
4 |
Correct |
271 ms |
294068 KB |
Output is correct |
5 |
Correct |
270 ms |
293880 KB |
Output is correct |
6 |
Correct |
271 ms |
293884 KB |
Output is correct |
7 |
Correct |
273 ms |
293912 KB |
Output is correct |
8 |
Correct |
298 ms |
293864 KB |
Output is correct |
9 |
Correct |
270 ms |
293880 KB |
Output is correct |
10 |
Correct |
270 ms |
294024 KB |
Output is correct |
11 |
Correct |
270 ms |
293880 KB |
Output is correct |
12 |
Correct |
272 ms |
294008 KB |
Output is correct |
13 |
Correct |
281 ms |
294072 KB |
Output is correct |
14 |
Correct |
271 ms |
293928 KB |
Output is correct |
15 |
Correct |
272 ms |
293880 KB |
Output is correct |
16 |
Correct |
270 ms |
293880 KB |
Output is correct |
17 |
Correct |
276 ms |
294220 KB |
Output is correct |
18 |
Correct |
292 ms |
294428 KB |
Output is correct |
19 |
Correct |
273 ms |
294364 KB |
Output is correct |
20 |
Correct |
271 ms |
294136 KB |
Output is correct |
21 |
Correct |
273 ms |
294136 KB |
Output is correct |
22 |
Correct |
272 ms |
294200 KB |
Output is correct |
23 |
Correct |
273 ms |
294132 KB |
Output is correct |
24 |
Correct |
273 ms |
294008 KB |
Output is correct |
25 |
Correct |
271 ms |
293840 KB |
Output is correct |
26 |
Correct |
274 ms |
293880 KB |
Output is correct |
27 |
Correct |
271 ms |
293828 KB |
Output is correct |
28 |
Correct |
270 ms |
293880 KB |
Output is correct |
29 |
Correct |
271 ms |
293880 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
273 ms |
293880 KB |
Output is correct |
2 |
Correct |
286 ms |
293888 KB |
Output is correct |
3 |
Correct |
303 ms |
294008 KB |
Output is correct |
4 |
Correct |
271 ms |
294068 KB |
Output is correct |
5 |
Correct |
270 ms |
293880 KB |
Output is correct |
6 |
Correct |
271 ms |
293884 KB |
Output is correct |
7 |
Correct |
273 ms |
293912 KB |
Output is correct |
8 |
Correct |
298 ms |
293864 KB |
Output is correct |
9 |
Correct |
270 ms |
293880 KB |
Output is correct |
10 |
Correct |
270 ms |
294024 KB |
Output is correct |
11 |
Correct |
270 ms |
293880 KB |
Output is correct |
12 |
Correct |
272 ms |
294008 KB |
Output is correct |
13 |
Correct |
281 ms |
294072 KB |
Output is correct |
14 |
Correct |
271 ms |
293928 KB |
Output is correct |
15 |
Correct |
272 ms |
293880 KB |
Output is correct |
16 |
Correct |
270 ms |
293880 KB |
Output is correct |
17 |
Correct |
276 ms |
294220 KB |
Output is correct |
18 |
Correct |
292 ms |
294428 KB |
Output is correct |
19 |
Correct |
273 ms |
294364 KB |
Output is correct |
20 |
Correct |
271 ms |
294136 KB |
Output is correct |
21 |
Correct |
273 ms |
294136 KB |
Output is correct |
22 |
Correct |
272 ms |
294200 KB |
Output is correct |
23 |
Correct |
273 ms |
294132 KB |
Output is correct |
24 |
Correct |
273 ms |
294008 KB |
Output is correct |
25 |
Correct |
282 ms |
296668 KB |
Output is correct |
26 |
Correct |
298 ms |
296664 KB |
Output is correct |
27 |
Correct |
298 ms |
296712 KB |
Output is correct |
28 |
Correct |
281 ms |
295124 KB |
Output is correct |
29 |
Correct |
284 ms |
295580 KB |
Output is correct |
30 |
Correct |
288 ms |
295576 KB |
Output is correct |
31 |
Correct |
287 ms |
295592 KB |
Output is correct |
32 |
Correct |
286 ms |
295500 KB |
Output is correct |
33 |
Correct |
271 ms |
293840 KB |
Output is correct |
34 |
Correct |
274 ms |
293880 KB |
Output is correct |
35 |
Correct |
271 ms |
293828 KB |
Output is correct |
36 |
Correct |
270 ms |
293880 KB |
Output is correct |
37 |
Correct |
271 ms |
293880 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
273 ms |
293880 KB |
Output is correct |
2 |
Correct |
286 ms |
293888 KB |
Output is correct |
3 |
Correct |
303 ms |
294008 KB |
Output is correct |
4 |
Correct |
271 ms |
294068 KB |
Output is correct |
5 |
Correct |
270 ms |
293880 KB |
Output is correct |
6 |
Correct |
271 ms |
293884 KB |
Output is correct |
7 |
Correct |
273 ms |
293912 KB |
Output is correct |
8 |
Correct |
298 ms |
293864 KB |
Output is correct |
9 |
Correct |
270 ms |
293880 KB |
Output is correct |
10 |
Correct |
270 ms |
294024 KB |
Output is correct |
11 |
Correct |
270 ms |
293880 KB |
Output is correct |
12 |
Correct |
272 ms |
294008 KB |
Output is correct |
13 |
Correct |
281 ms |
294072 KB |
Output is correct |
14 |
Correct |
271 ms |
293928 KB |
Output is correct |
15 |
Correct |
272 ms |
293880 KB |
Output is correct |
16 |
Correct |
270 ms |
293880 KB |
Output is correct |
17 |
Correct |
276 ms |
294220 KB |
Output is correct |
18 |
Correct |
292 ms |
294428 KB |
Output is correct |
19 |
Correct |
273 ms |
294364 KB |
Output is correct |
20 |
Correct |
271 ms |
294136 KB |
Output is correct |
21 |
Correct |
273 ms |
294136 KB |
Output is correct |
22 |
Correct |
272 ms |
294200 KB |
Output is correct |
23 |
Correct |
273 ms |
294132 KB |
Output is correct |
24 |
Correct |
273 ms |
294008 KB |
Output is correct |
25 |
Correct |
282 ms |
296668 KB |
Output is correct |
26 |
Correct |
298 ms |
296664 KB |
Output is correct |
27 |
Correct |
298 ms |
296712 KB |
Output is correct |
28 |
Correct |
281 ms |
295124 KB |
Output is correct |
29 |
Correct |
284 ms |
295580 KB |
Output is correct |
30 |
Correct |
288 ms |
295576 KB |
Output is correct |
31 |
Correct |
287 ms |
295592 KB |
Output is correct |
32 |
Correct |
286 ms |
295500 KB |
Output is correct |
33 |
Correct |
375 ms |
313096 KB |
Output is correct |
34 |
Correct |
397 ms |
308440 KB |
Output is correct |
35 |
Correct |
338 ms |
308344 KB |
Output is correct |
36 |
Correct |
326 ms |
303568 KB |
Output is correct |
37 |
Correct |
517 ms |
328568 KB |
Output is correct |
38 |
Correct |
462 ms |
328200 KB |
Output is correct |
39 |
Correct |
462 ms |
328360 KB |
Output is correct |
40 |
Correct |
438 ms |
326128 KB |
Output is correct |
41 |
Correct |
389 ms |
305484 KB |
Output is correct |
42 |
Correct |
388 ms |
307960 KB |
Output is correct |
43 |
Correct |
459 ms |
315820 KB |
Output is correct |
44 |
Correct |
486 ms |
316072 KB |
Output is correct |
45 |
Correct |
369 ms |
304876 KB |
Output is correct |
46 |
Correct |
364 ms |
304892 KB |
Output is correct |
47 |
Correct |
453 ms |
314516 KB |
Output is correct |
48 |
Correct |
458 ms |
316792 KB |
Output is correct |
49 |
Correct |
271 ms |
293840 KB |
Output is correct |
50 |
Correct |
274 ms |
293880 KB |
Output is correct |
51 |
Correct |
271 ms |
293828 KB |
Output is correct |
52 |
Correct |
270 ms |
293880 KB |
Output is correct |
53 |
Correct |
271 ms |
293880 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
272 ms |
294324 KB |
Output is correct |
2 |
Correct |
283 ms |
294276 KB |
Output is correct |
3 |
Correct |
271 ms |
294064 KB |
Output is correct |
4 |
Correct |
268 ms |
293916 KB |
Output is correct |
5 |
Correct |
273 ms |
294136 KB |
Output is correct |
6 |
Correct |
272 ms |
294136 KB |
Output is correct |
7 |
Correct |
273 ms |
294180 KB |
Output is correct |
8 |
Correct |
296 ms |
294232 KB |
Output is correct |
9 |
Correct |
273 ms |
294236 KB |
Output is correct |
10 |
Correct |
272 ms |
293936 KB |
Output is correct |
11 |
Correct |
269 ms |
293880 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
270 ms |
293832 KB |
Output is correct |
2 |
Correct |
854 ms |
361516 KB |
Output is correct |
3 |
Correct |
1747 ms |
440340 KB |
Output is correct |
4 |
Correct |
1681 ms |
440956 KB |
Output is correct |
5 |
Correct |
1695 ms |
441184 KB |
Output is correct |
6 |
Correct |
423 ms |
318588 KB |
Output is correct |
7 |
Correct |
626 ms |
340344 KB |
Output is correct |
8 |
Correct |
647 ms |
343276 KB |
Output is correct |
9 |
Correct |
271 ms |
293840 KB |
Output is correct |
10 |
Correct |
274 ms |
293880 KB |
Output is correct |
11 |
Correct |
271 ms |
293828 KB |
Output is correct |
12 |
Correct |
270 ms |
293880 KB |
Output is correct |
13 |
Correct |
271 ms |
293880 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
273 ms |
293880 KB |
Output is correct |
2 |
Correct |
286 ms |
293888 KB |
Output is correct |
3 |
Correct |
303 ms |
294008 KB |
Output is correct |
4 |
Correct |
271 ms |
294068 KB |
Output is correct |
5 |
Correct |
270 ms |
293880 KB |
Output is correct |
6 |
Correct |
271 ms |
293884 KB |
Output is correct |
7 |
Correct |
273 ms |
293912 KB |
Output is correct |
8 |
Correct |
298 ms |
293864 KB |
Output is correct |
9 |
Correct |
270 ms |
293880 KB |
Output is correct |
10 |
Correct |
270 ms |
294024 KB |
Output is correct |
11 |
Correct |
270 ms |
293880 KB |
Output is correct |
12 |
Correct |
272 ms |
294008 KB |
Output is correct |
13 |
Correct |
281 ms |
294072 KB |
Output is correct |
14 |
Correct |
271 ms |
293928 KB |
Output is correct |
15 |
Correct |
272 ms |
293880 KB |
Output is correct |
16 |
Correct |
270 ms |
293880 KB |
Output is correct |
17 |
Correct |
276 ms |
294220 KB |
Output is correct |
18 |
Correct |
292 ms |
294428 KB |
Output is correct |
19 |
Correct |
273 ms |
294364 KB |
Output is correct |
20 |
Correct |
271 ms |
294136 KB |
Output is correct |
21 |
Correct |
273 ms |
294136 KB |
Output is correct |
22 |
Correct |
272 ms |
294200 KB |
Output is correct |
23 |
Correct |
273 ms |
294132 KB |
Output is correct |
24 |
Correct |
273 ms |
294008 KB |
Output is correct |
25 |
Correct |
282 ms |
296668 KB |
Output is correct |
26 |
Correct |
298 ms |
296664 KB |
Output is correct |
27 |
Correct |
298 ms |
296712 KB |
Output is correct |
28 |
Correct |
281 ms |
295124 KB |
Output is correct |
29 |
Correct |
284 ms |
295580 KB |
Output is correct |
30 |
Correct |
288 ms |
295576 KB |
Output is correct |
31 |
Correct |
287 ms |
295592 KB |
Output is correct |
32 |
Correct |
286 ms |
295500 KB |
Output is correct |
33 |
Correct |
375 ms |
313096 KB |
Output is correct |
34 |
Correct |
397 ms |
308440 KB |
Output is correct |
35 |
Correct |
338 ms |
308344 KB |
Output is correct |
36 |
Correct |
326 ms |
303568 KB |
Output is correct |
37 |
Correct |
517 ms |
328568 KB |
Output is correct |
38 |
Correct |
462 ms |
328200 KB |
Output is correct |
39 |
Correct |
462 ms |
328360 KB |
Output is correct |
40 |
Correct |
438 ms |
326128 KB |
Output is correct |
41 |
Correct |
389 ms |
305484 KB |
Output is correct |
42 |
Correct |
388 ms |
307960 KB |
Output is correct |
43 |
Correct |
459 ms |
315820 KB |
Output is correct |
44 |
Correct |
486 ms |
316072 KB |
Output is correct |
45 |
Correct |
369 ms |
304876 KB |
Output is correct |
46 |
Correct |
364 ms |
304892 KB |
Output is correct |
47 |
Correct |
453 ms |
314516 KB |
Output is correct |
48 |
Correct |
458 ms |
316792 KB |
Output is correct |
49 |
Correct |
272 ms |
294324 KB |
Output is correct |
50 |
Correct |
283 ms |
294276 KB |
Output is correct |
51 |
Correct |
271 ms |
294064 KB |
Output is correct |
52 |
Correct |
268 ms |
293916 KB |
Output is correct |
53 |
Correct |
273 ms |
294136 KB |
Output is correct |
54 |
Correct |
272 ms |
294136 KB |
Output is correct |
55 |
Correct |
273 ms |
294180 KB |
Output is correct |
56 |
Correct |
296 ms |
294232 KB |
Output is correct |
57 |
Correct |
273 ms |
294236 KB |
Output is correct |
58 |
Correct |
272 ms |
293936 KB |
Output is correct |
59 |
Correct |
269 ms |
293880 KB |
Output is correct |
60 |
Correct |
270 ms |
293832 KB |
Output is correct |
61 |
Correct |
854 ms |
361516 KB |
Output is correct |
62 |
Correct |
1747 ms |
440340 KB |
Output is correct |
63 |
Correct |
1681 ms |
440956 KB |
Output is correct |
64 |
Correct |
1695 ms |
441184 KB |
Output is correct |
65 |
Correct |
423 ms |
318588 KB |
Output is correct |
66 |
Correct |
626 ms |
340344 KB |
Output is correct |
67 |
Correct |
647 ms |
343276 KB |
Output is correct |
68 |
Correct |
1877 ms |
539300 KB |
Output is correct |
69 |
Correct |
1833 ms |
472548 KB |
Output is correct |
70 |
Correct |
1284 ms |
472556 KB |
Output is correct |
71 |
Correct |
1050 ms |
405360 KB |
Output is correct |
72 |
Correct |
4196 ms |
757500 KB |
Output is correct |
73 |
Correct |
1949 ms |
462120 KB |
Output is correct |
74 |
Correct |
2089 ms |
472360 KB |
Output is correct |
75 |
Correct |
3169 ms |
574384 KB |
Output is correct |
76 |
Correct |
2055 ms |
491896 KB |
Output is correct |
77 |
Correct |
2664 ms |
557916 KB |
Output is correct |
78 |
Correct |
3318 ms |
624004 KB |
Output is correct |
79 |
Correct |
1942 ms |
473876 KB |
Output is correct |
80 |
Correct |
3239 ms |
607776 KB |
Output is correct |
81 |
Correct |
3074 ms |
598420 KB |
Output is correct |
82 |
Correct |
2627 ms |
586580 KB |
Output is correct |
83 |
Correct |
4348 ms |
781468 KB |
Output is correct |
84 |
Correct |
4285 ms |
781780 KB |
Output is correct |
85 |
Correct |
4264 ms |
781840 KB |
Output is correct |
86 |
Correct |
271 ms |
293840 KB |
Output is correct |
87 |
Correct |
274 ms |
293880 KB |
Output is correct |
88 |
Correct |
271 ms |
293828 KB |
Output is correct |
89 |
Correct |
270 ms |
293880 KB |
Output is correct |
90 |
Correct |
271 ms |
293880 KB |
Output is correct |