#include <bits/stdc++.h>
using namespace std;
int biggest_stadium(int n,vector<vector<int> > arr){
int close[4][n][n];
for(int j=0; j<n; j++){
int prv=-1;
for(int i=0; i<n; i++){
if(arr[i][j]) prv=i;
close[0][i][j]=prv;
}
prv=n;
for(int i=n-1; i>=0; i--){
if(arr[i][j]) prv=i;
close[1][i][j]=prv;
}
}
for(int i=0; i<n; i++){
int prv=-1;
for(int j=0; j<n; j++){
if(arr[i][j]) prv=j;
close[2][i][j]=prv;
}
prv=n;
for(int j=n-1; j>=0; j--){
if(arr[i][j]) prv=j;
close[3][i][j]=prv;
}
}
int pref[4][n+5][n+5];
memset(pref,0,sizeof(pref));
for(int i=0; i<n; i++) for(int j=0; j<n; j++) arr[i][j]^=1;
for(int i=0; i<n; i++){
for(int j=0; j<n; j++){
pref[0][i+1][j+1]=pref[0][i+1][j]+pref[0][i][j+1]-pref[0][i][j]+arr[i][j];
}
for(int j=n-1; j>=0; j--){
pref[1][i+1][j+1]=pref[1][i+1][j+2]+pref[1][i][j+1]-pref[1][i][j+2]+arr[i][j];
}
}
for(int i=n-1; i>=0; i--){
for(int j=0; j<n; j++){
pref[2][i+1][j+1]=pref[2][i+1][j]+pref[2][i+2][j+1]-pref[2][i+2][j]+arr[i][j];
}
for(int j=n-1; j>=0; j--){
pref[3][i+1][j+1]=pref[3][i+1][j+2]+pref[3][i+2][j+1]-pref[3][i+2][j+2]+arr[i][j];
}
}
for(int a=1; a<=n; a++){
for(int b=1; b<=n; b++){
if(arr[a-1][b-1]==0){
if((pref[0][a-1][b]-pref[0][a-1][b-1])&&(pref[2][a+1][b]-pref[2][a+1][b-1])) return 0;
if((pref[0][a][b-1]-pref[0][a-1][b-1])&&(pref[3][a][b+1]-pref[3][a+1][b+1])) return 0;
continue;
}
int u=close[0][a-1][b-1],d=close[1][a-1][b-1],l=close[2][a-1][b-1],r=close[3][a-1][b-1];
//cout << a << ' ' << b << '\n';
//cout << u << ' ' << d << ' ' << l << ' ' << r << '\n';
if(pref[0][u+1][l+1]) return 0;
if(pref[1][u+1][r+1]) return 0;
if(pref[2][d+1][l+1]) return 0;
if(pref[3][d+1][r+1]) return 0;
}
}
return pref[0][n][n];
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Partially correct |
0 ms |
348 KB |
partial |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
ok |
2 |
Correct |
0 ms |
436 KB |
ok |
3 |
Correct |
0 ms |
348 KB |
ok |
4 |
Correct |
1 ms |
348 KB |
ok |
5 |
Correct |
1 ms |
348 KB |
ok |
6 |
Partially correct |
0 ms |
348 KB |
partial |
7 |
Partially correct |
1 ms |
860 KB |
partial |
8 |
Partially correct |
22 ms |
10588 KB |
partial |
9 |
Partially correct |
344 ms |
165128 KB |
partial |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
ok |
2 |
Correct |
0 ms |
436 KB |
ok |
3 |
Partially correct |
0 ms |
344 KB |
partial |
4 |
Partially correct |
0 ms |
344 KB |
partial |
5 |
Partially correct |
0 ms |
432 KB |
partial |
6 |
Partially correct |
0 ms |
348 KB |
partial |
7 |
Partially correct |
0 ms |
348 KB |
partial |
8 |
Correct |
0 ms |
348 KB |
ok |
9 |
Correct |
1 ms |
348 KB |
ok |
10 |
Partially correct |
0 ms |
348 KB |
partial |
11 |
Partially correct |
0 ms |
348 KB |
partial |
12 |
Partially correct |
0 ms |
348 KB |
partial |
13 |
Correct |
0 ms |
512 KB |
ok |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Partially correct |
0 ms |
348 KB |
partial |
2 |
Correct |
0 ms |
348 KB |
ok |
3 |
Correct |
0 ms |
436 KB |
ok |
4 |
Partially correct |
0 ms |
344 KB |
partial |
5 |
Partially correct |
0 ms |
344 KB |
partial |
6 |
Partially correct |
0 ms |
432 KB |
partial |
7 |
Partially correct |
0 ms |
348 KB |
partial |
8 |
Partially correct |
0 ms |
348 KB |
partial |
9 |
Correct |
0 ms |
348 KB |
ok |
10 |
Correct |
1 ms |
348 KB |
ok |
11 |
Partially correct |
0 ms |
348 KB |
partial |
12 |
Partially correct |
0 ms |
348 KB |
partial |
13 |
Partially correct |
0 ms |
348 KB |
partial |
14 |
Correct |
0 ms |
512 KB |
ok |
15 |
Partially correct |
0 ms |
348 KB |
partial |
16 |
Partially correct |
0 ms |
348 KB |
partial |
17 |
Partially correct |
0 ms |
348 KB |
partial |
18 |
Partially correct |
0 ms |
348 KB |
partial |
19 |
Partially correct |
0 ms |
348 KB |
partial |
20 |
Correct |
0 ms |
348 KB |
ok |
21 |
Correct |
1 ms |
604 KB |
ok |
22 |
Partially correct |
0 ms |
348 KB |
partial |
23 |
Partially correct |
0 ms |
348 KB |
partial |
24 |
Partially correct |
1 ms |
348 KB |
partial |
25 |
Partially correct |
0 ms |
348 KB |
partial |
26 |
Partially correct |
0 ms |
348 KB |
partial |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Partially correct |
0 ms |
348 KB |
partial |
2 |
Correct |
0 ms |
348 KB |
ok |
3 |
Correct |
0 ms |
436 KB |
ok |
4 |
Correct |
0 ms |
348 KB |
ok |
5 |
Correct |
1 ms |
348 KB |
ok |
6 |
Partially correct |
0 ms |
344 KB |
partial |
7 |
Partially correct |
0 ms |
344 KB |
partial |
8 |
Partially correct |
0 ms |
432 KB |
partial |
9 |
Partially correct |
0 ms |
348 KB |
partial |
10 |
Partially correct |
0 ms |
348 KB |
partial |
11 |
Correct |
0 ms |
348 KB |
ok |
12 |
Correct |
1 ms |
348 KB |
ok |
13 |
Partially correct |
0 ms |
348 KB |
partial |
14 |
Partially correct |
0 ms |
348 KB |
partial |
15 |
Partially correct |
0 ms |
348 KB |
partial |
16 |
Correct |
0 ms |
512 KB |
ok |
17 |
Partially correct |
0 ms |
348 KB |
partial |
18 |
Partially correct |
0 ms |
348 KB |
partial |
19 |
Partially correct |
0 ms |
348 KB |
partial |
20 |
Partially correct |
0 ms |
348 KB |
partial |
21 |
Partially correct |
0 ms |
348 KB |
partial |
22 |
Correct |
0 ms |
348 KB |
ok |
23 |
Correct |
1 ms |
604 KB |
ok |
24 |
Partially correct |
0 ms |
348 KB |
partial |
25 |
Partially correct |
0 ms |
348 KB |
partial |
26 |
Partially correct |
1 ms |
348 KB |
partial |
27 |
Partially correct |
0 ms |
348 KB |
partial |
28 |
Partially correct |
0 ms |
348 KB |
partial |
29 |
Partially correct |
0 ms |
344 KB |
partial |
30 |
Partially correct |
0 ms |
348 KB |
partial |
31 |
Partially correct |
0 ms |
348 KB |
partial |
32 |
Partially correct |
0 ms |
348 KB |
partial |
33 |
Partially correct |
1 ms |
348 KB |
partial |
34 |
Correct |
0 ms |
348 KB |
ok |
35 |
Correct |
1 ms |
348 KB |
ok |
36 |
Partially correct |
1 ms |
348 KB |
partial |
37 |
Partially correct |
0 ms |
348 KB |
partial |
38 |
Partially correct |
0 ms |
348 KB |
partial |
39 |
Partially correct |
0 ms |
348 KB |
partial |
40 |
Partially correct |
0 ms |
348 KB |
partial |
41 |
Partially correct |
1 ms |
344 KB |
partial |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Partially correct |
0 ms |
348 KB |
partial |
2 |
Correct |
0 ms |
348 KB |
ok |
3 |
Correct |
0 ms |
436 KB |
ok |
4 |
Correct |
0 ms |
348 KB |
ok |
5 |
Correct |
1 ms |
348 KB |
ok |
6 |
Partially correct |
0 ms |
344 KB |
partial |
7 |
Partially correct |
0 ms |
344 KB |
partial |
8 |
Partially correct |
0 ms |
432 KB |
partial |
9 |
Partially correct |
0 ms |
348 KB |
partial |
10 |
Partially correct |
0 ms |
348 KB |
partial |
11 |
Correct |
0 ms |
348 KB |
ok |
12 |
Correct |
1 ms |
348 KB |
ok |
13 |
Partially correct |
0 ms |
348 KB |
partial |
14 |
Partially correct |
0 ms |
348 KB |
partial |
15 |
Partially correct |
0 ms |
348 KB |
partial |
16 |
Correct |
0 ms |
512 KB |
ok |
17 |
Partially correct |
0 ms |
348 KB |
partial |
18 |
Partially correct |
0 ms |
348 KB |
partial |
19 |
Partially correct |
0 ms |
348 KB |
partial |
20 |
Partially correct |
0 ms |
348 KB |
partial |
21 |
Partially correct |
0 ms |
348 KB |
partial |
22 |
Correct |
0 ms |
348 KB |
ok |
23 |
Correct |
1 ms |
604 KB |
ok |
24 |
Partially correct |
0 ms |
348 KB |
partial |
25 |
Partially correct |
0 ms |
348 KB |
partial |
26 |
Partially correct |
1 ms |
348 KB |
partial |
27 |
Partially correct |
0 ms |
348 KB |
partial |
28 |
Partially correct |
0 ms |
348 KB |
partial |
29 |
Partially correct |
0 ms |
344 KB |
partial |
30 |
Partially correct |
0 ms |
348 KB |
partial |
31 |
Partially correct |
0 ms |
348 KB |
partial |
32 |
Partially correct |
0 ms |
348 KB |
partial |
33 |
Partially correct |
1 ms |
348 KB |
partial |
34 |
Correct |
0 ms |
348 KB |
ok |
35 |
Correct |
1 ms |
348 KB |
ok |
36 |
Partially correct |
1 ms |
348 KB |
partial |
37 |
Partially correct |
0 ms |
348 KB |
partial |
38 |
Partially correct |
0 ms |
348 KB |
partial |
39 |
Partially correct |
0 ms |
348 KB |
partial |
40 |
Partially correct |
0 ms |
348 KB |
partial |
41 |
Partially correct |
1 ms |
344 KB |
partial |
42 |
Partially correct |
21 ms |
10588 KB |
partial |
43 |
Partially correct |
21 ms |
10584 KB |
partial |
44 |
Partially correct |
20 ms |
10588 KB |
partial |
45 |
Partially correct |
20 ms |
10588 KB |
partial |
46 |
Partially correct |
21 ms |
10588 KB |
partial |
47 |
Partially correct |
21 ms |
10576 KB |
partial |
48 |
Correct |
20 ms |
10588 KB |
ok |
49 |
Partially correct |
21 ms |
10588 KB |
partial |
50 |
Partially correct |
20 ms |
10588 KB |
partial |
51 |
Partially correct |
20 ms |
10588 KB |
partial |
52 |
Partially correct |
21 ms |
10752 KB |
partial |
53 |
Partially correct |
21 ms |
10584 KB |
partial |
54 |
Partially correct |
24 ms |
10588 KB |
partial |
55 |
Partially correct |
20 ms |
10576 KB |
partial |
56 |
Partially correct |
20 ms |
10588 KB |
partial |
57 |
Partially correct |
21 ms |
10576 KB |
partial |
58 |
Partially correct |
22 ms |
10584 KB |
partial |
59 |
Partially correct |
21 ms |
10576 KB |
partial |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Partially correct |
0 ms |
348 KB |
partial |
2 |
Correct |
0 ms |
348 KB |
ok |
3 |
Correct |
0 ms |
436 KB |
ok |
4 |
Correct |
0 ms |
348 KB |
ok |
5 |
Correct |
1 ms |
348 KB |
ok |
6 |
Correct |
1 ms |
348 KB |
ok |
7 |
Partially correct |
0 ms |
348 KB |
partial |
8 |
Partially correct |
1 ms |
860 KB |
partial |
9 |
Partially correct |
22 ms |
10588 KB |
partial |
10 |
Partially correct |
344 ms |
165128 KB |
partial |
11 |
Partially correct |
0 ms |
344 KB |
partial |
12 |
Partially correct |
0 ms |
344 KB |
partial |
13 |
Partially correct |
0 ms |
432 KB |
partial |
14 |
Partially correct |
0 ms |
348 KB |
partial |
15 |
Partially correct |
0 ms |
348 KB |
partial |
16 |
Correct |
0 ms |
348 KB |
ok |
17 |
Correct |
1 ms |
348 KB |
ok |
18 |
Partially correct |
0 ms |
348 KB |
partial |
19 |
Partially correct |
0 ms |
348 KB |
partial |
20 |
Partially correct |
0 ms |
348 KB |
partial |
21 |
Correct |
0 ms |
512 KB |
ok |
22 |
Partially correct |
0 ms |
348 KB |
partial |
23 |
Partially correct |
0 ms |
348 KB |
partial |
24 |
Partially correct |
0 ms |
348 KB |
partial |
25 |
Partially correct |
0 ms |
348 KB |
partial |
26 |
Partially correct |
0 ms |
348 KB |
partial |
27 |
Correct |
0 ms |
348 KB |
ok |
28 |
Correct |
1 ms |
604 KB |
ok |
29 |
Partially correct |
0 ms |
348 KB |
partial |
30 |
Partially correct |
0 ms |
348 KB |
partial |
31 |
Partially correct |
1 ms |
348 KB |
partial |
32 |
Partially correct |
0 ms |
348 KB |
partial |
33 |
Partially correct |
0 ms |
348 KB |
partial |
34 |
Partially correct |
0 ms |
344 KB |
partial |
35 |
Partially correct |
0 ms |
348 KB |
partial |
36 |
Partially correct |
0 ms |
348 KB |
partial |
37 |
Partially correct |
0 ms |
348 KB |
partial |
38 |
Partially correct |
1 ms |
348 KB |
partial |
39 |
Correct |
0 ms |
348 KB |
ok |
40 |
Correct |
1 ms |
348 KB |
ok |
41 |
Partially correct |
1 ms |
348 KB |
partial |
42 |
Partially correct |
0 ms |
348 KB |
partial |
43 |
Partially correct |
0 ms |
348 KB |
partial |
44 |
Partially correct |
0 ms |
348 KB |
partial |
45 |
Partially correct |
0 ms |
348 KB |
partial |
46 |
Partially correct |
1 ms |
344 KB |
partial |
47 |
Partially correct |
21 ms |
10588 KB |
partial |
48 |
Partially correct |
21 ms |
10584 KB |
partial |
49 |
Partially correct |
20 ms |
10588 KB |
partial |
50 |
Partially correct |
20 ms |
10588 KB |
partial |
51 |
Partially correct |
21 ms |
10588 KB |
partial |
52 |
Partially correct |
21 ms |
10576 KB |
partial |
53 |
Correct |
20 ms |
10588 KB |
ok |
54 |
Partially correct |
21 ms |
10588 KB |
partial |
55 |
Partially correct |
20 ms |
10588 KB |
partial |
56 |
Partially correct |
20 ms |
10588 KB |
partial |
57 |
Partially correct |
21 ms |
10752 KB |
partial |
58 |
Partially correct |
21 ms |
10584 KB |
partial |
59 |
Partially correct |
24 ms |
10588 KB |
partial |
60 |
Partially correct |
20 ms |
10576 KB |
partial |
61 |
Partially correct |
20 ms |
10588 KB |
partial |
62 |
Partially correct |
21 ms |
10576 KB |
partial |
63 |
Partially correct |
22 ms |
10584 KB |
partial |
64 |
Partially correct |
21 ms |
10576 KB |
partial |
65 |
Partially correct |
348 ms |
161472 KB |
partial |
66 |
Partially correct |
362 ms |
165200 KB |
partial |
67 |
Partially correct |
358 ms |
165120 KB |
partial |
68 |
Partially correct |
347 ms |
162348 KB |
partial |
69 |
Partially correct |
347 ms |
165204 KB |
partial |
70 |
Partially correct |
350 ms |
165204 KB |
partial |
71 |
Partially correct |
343 ms |
165204 KB |
partial |
72 |
Partially correct |
331 ms |
165008 KB |
partial |
73 |
Correct |
360 ms |
165124 KB |
ok |
74 |
Correct |
362 ms |
165012 KB |
ok |
75 |
Partially correct |
371 ms |
165204 KB |
partial |
76 |
Partially correct |
325 ms |
165456 KB |
partial |
77 |
Partially correct |
386 ms |
164880 KB |
partial |
78 |
Partially correct |
328 ms |
165204 KB |
partial |
79 |
Partially correct |
339 ms |
165204 KB |
partial |
80 |
Partially correct |
350 ms |
165200 KB |
partial |
81 |
Partially correct |
357 ms |
165000 KB |
partial |
82 |
Partially correct |
352 ms |
165204 KB |
partial |
83 |
Partially correct |
367 ms |
165148 KB |
partial |
84 |
Partially correct |
347 ms |
165204 KB |
partial |
85 |
Partially correct |
367 ms |
165120 KB |
partial |
86 |
Partially correct |
382 ms |
165248 KB |
partial |
87 |
Partially correct |
362 ms |
165004 KB |
partial |
88 |
Partially correct |
394 ms |
165204 KB |
partial |
89 |
Partially correct |
377 ms |
164376 KB |
partial |
90 |
Partially correct |
336 ms |
165204 KB |
partial |
91 |
Partially correct |
387 ms |
165128 KB |
partial |
92 |
Partially correct |
350 ms |
165000 KB |
partial |
93 |
Partially correct |
348 ms |
165204 KB |
partial |
94 |
Partially correct |
340 ms |
165200 KB |
partial |
95 |
Partially correct |
326 ms |
165204 KB |
partial |
96 |
Partially correct |
363 ms |
165200 KB |
partial |
97 |
Partially correct |
374 ms |
165204 KB |
partial |
98 |
Partially correct |
358 ms |
165204 KB |
partial |
99 |
Partially correct |
336 ms |
165000 KB |
partial |
100 |
Partially correct |
328 ms |
165140 KB |
partial |
101 |
Partially correct |
329 ms |
165204 KB |
partial |
102 |
Partially correct |
331 ms |
165128 KB |
partial |
103 |
Partially correct |
333 ms |
165144 KB |
partial |
104 |
Partially correct |
341 ms |
165204 KB |
partial |
105 |
Partially correct |
333 ms |
165000 KB |
partial |
106 |
Partially correct |
334 ms |
165140 KB |
partial |
107 |
Partially correct |
331 ms |
165200 KB |
partial |
108 |
Partially correct |
351 ms |
165200 KB |
partial |
109 |
Partially correct |
334 ms |
165200 KB |
partial |