#include "soccer.h"
#include <bits/stdc++.h>
using namespace std;
const int MAX = 2005;
const int LOG = 12;
int n, a[MAX][MAX];
int L[MAX][MAX];
int R[MAX][MAX];
int U[MAX][MAX];
int D[MAX][MAX];
int go[MAX][MAX];
int sum[MAX][MAX];
int logs[MAX];
int st_U[LOG][MAX][MAX];
int st_D[LOG][MAX][MAX];
int res;
map<pair<int, int>, int> mp[MAX][MAX];
int query_U(int i, int l, int r) {
int k = logs[r - l + 1];
return max(st_U[k][i][l], st_U[k][i][r - (1 << k) + 1]);
}
int query_D(int i, int l, int r) {
int k = logs[r - l + 1];
return min(st_D[k][i][l], st_D[k][i][r - (1 << k) + 1]);
}
int get_sum(int i, int l, int r) {
return sum[i][r] - (l == 0 ? 0 : sum[i][l - 1]);
}
void rec(int xl, int xr, int yl, int yr, int cur) {
if (mp[xl][yr][{yl, yr}] >= cur) {
return;
}
res = max(res, cur);
mp[xl][yr][{yl, yr}] = cur;
//vector<array<int, 5>> to;
if (xl > 0) {
// up
int ptr = yl;
while (ptr <= yr) {
if (a[xl - 1][ptr] == 1) {
ptr = go[xl - 1][ptr];
continue;
}
int t = min(yr, R[xl - 1][ptr]);
int new_xl = query_U(xl - 1, ptr, t);
if (ptr == yl && t == yr && ((yl > 0 && a[xl - 1][yl - 1] == 0) || (yr + 1 < n && a[xl - 1][yr + 1] == 0))) {
ptr = R[xl - 1][ptr] + 1;
continue;
}
int new_xr = ((xr == n - 1 || get_sum(xr + 1, ptr, t) > 0) ? xr : query_D(xr + 1, ptr, t));
//to.push_back({cur + (t - ptr + 1) * (xl - new_xl + new_xr - xr), new_xl, new_xr, ptr, t});
rec(new_xl, new_xr, ptr, t, cur + (t - ptr + 1) * (xl - new_xl + new_xr - xr));
ptr = R[xl - 1][ptr] + 1;
}
}
if (xr + 1 < n) {
// down
int ptr = yl;
while (ptr <= yr) {
if (a[xr + 1][ptr] == 1) {
ptr = go[xr + 1][ptr];
continue;
}
int t = min(yr, R[xr + 1][ptr]);
int new_xr = query_D(xr + 1, ptr, t);
if (ptr == yl && t == yr && ((yl > 0 && a[xr + 1][yl - 1] == 0) || (yr + 1 < n && a[xr + 1][yr + 1] == 0))) {
ptr = R[xr + 1][ptr] + 1;
continue;
}
int new_xl = ((xl == 0 || get_sum(xl - 1, ptr, t) > 0) ? xl : query_U(xl - 1, ptr, t));
//to.push_back({cur + (t - ptr + 1) * (xl - new_xl + new_xr - xr), new_xl, new_xr, ptr, t});
rec(new_xl, new_xr, ptr, t, cur + (t - ptr + 1) * (xl - new_xl + new_xr - xr));
ptr = R[xr + 1][ptr] + 1;
}
}
/* for (int i = 0; i < (int) to.size(); i++) {
rec(to[i][1], to[i][2], to[i][3], to[i][4], to[i][0]);
} */
}
int biggest_stadium(int N, vector<vector<int>> F) {
n = N;
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
a[i][j] = F[i][j];
}
}
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
sum[i][j] = a[i][j];
if (j > 0) {
sum[i][j] += sum[i][j - 1];
}
}
}
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
if (a[i][j] == 1) {
continue;
}
int p = j;
while (p + 1 < n && a[i][p + 1] == 0) {
p += 1;
}
for (int k = j; k <= p; k++) {
L[i][k] = j;
R[i][k] = p;
}
j = p;
}
}
for (int j = 0; j < n; j++) {
for (int i = 0; i < n; i++) {
if (a[i][j] == 1) {
continue;
}
int p = i;
while (p + 1 < n && a[p + 1][j] == 0) {
p += 1;
}
for (int k = i; k <= p; k++) {
U[k][j] = i;
D[k][j] = p;
}
i = p;
}
}
for (int i = 2; i <= n; i++) {
logs[i] = logs[i >> 1] + 1;
}
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
st_U[0][i][j] = U[i][j];
st_D[0][i][j] = D[i][j];
}
}
for (int k = 1; k < LOG; k++) {
for (int i = 0; i < n; i++) {
for (int j = 0; j + (1 << k) <= n; j++) {
st_U[k][i][j] = max(st_U[k - 1][i][j], st_U[k - 1][i][j + (1 << (k - 1))]);
st_D[k][i][j] = min(st_D[k - 1][i][j], st_D[k - 1][i][j + (1 << (k - 1))]);
}
}
}
for (int i = 0; i < n; i++) {
for (int j = n - 1; j >= 0; j--) {
if (a[i][j] == 1) {
go[i][j] = (j == n - 1 ? n : go[i][j + 1]);
} else {
go[i][j] = j;
}
}
}
res = 0;
vector<array<int, 4>> s;
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
if (a[i][j] == 1) {
continue;
}
if (j == 0 || a[i][j - 1] == 1) {
s.push_back({R[i][j] - j + 1, i, j, R[i][j]});
}
}
}
//sort(s.rbegin(), s.rend());
for (auto& p : s) {
int i = p[1];
int l = p[2], r = p[3];
int from = query_U(i, l, r);
int to = query_D(i, l, r);
rec(from, to, l, r, (to - from + 1) * (r - l + 1));
}
return res;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
65 ms |
189520 KB |
ok |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
67 ms |
189264 KB |
ok |
2 |
Correct |
67 ms |
189268 KB |
ok |
3 |
Correct |
71 ms |
189776 KB |
ok |
4 |
Correct |
64 ms |
189776 KB |
ok |
5 |
Correct |
69 ms |
189264 KB |
ok |
6 |
Correct |
74 ms |
189248 KB |
ok |
7 |
Correct |
69 ms |
198328 KB |
ok |
8 |
Correct |
102 ms |
263840 KB |
ok |
9 |
Correct |
572 ms |
675752 KB |
ok |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
67 ms |
189264 KB |
ok |
2 |
Correct |
67 ms |
189268 KB |
ok |
3 |
Correct |
72 ms |
189332 KB |
ok |
4 |
Correct |
65 ms |
189248 KB |
ok |
5 |
Correct |
69 ms |
189268 KB |
ok |
6 |
Correct |
77 ms |
189268 KB |
ok |
7 |
Correct |
66 ms |
189264 KB |
ok |
8 |
Correct |
77 ms |
189268 KB |
ok |
9 |
Correct |
66 ms |
189264 KB |
ok |
10 |
Correct |
67 ms |
189264 KB |
ok |
11 |
Correct |
64 ms |
189352 KB |
ok |
12 |
Correct |
67 ms |
189264 KB |
ok |
13 |
Correct |
65 ms |
189264 KB |
ok |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
65 ms |
189520 KB |
ok |
2 |
Correct |
67 ms |
189264 KB |
ok |
3 |
Correct |
67 ms |
189268 KB |
ok |
4 |
Correct |
72 ms |
189332 KB |
ok |
5 |
Correct |
65 ms |
189248 KB |
ok |
6 |
Correct |
69 ms |
189268 KB |
ok |
7 |
Correct |
77 ms |
189268 KB |
ok |
8 |
Correct |
66 ms |
189264 KB |
ok |
9 |
Correct |
77 ms |
189268 KB |
ok |
10 |
Correct |
66 ms |
189264 KB |
ok |
11 |
Correct |
67 ms |
189264 KB |
ok |
12 |
Correct |
64 ms |
189352 KB |
ok |
13 |
Correct |
67 ms |
189264 KB |
ok |
14 |
Correct |
65 ms |
189264 KB |
ok |
15 |
Correct |
73 ms |
189520 KB |
ok |
16 |
Correct |
68 ms |
189524 KB |
ok |
17 |
Correct |
77 ms |
189520 KB |
ok |
18 |
Correct |
71 ms |
189520 KB |
ok |
19 |
Correct |
66 ms |
189524 KB |
ok |
20 |
Correct |
67 ms |
189340 KB |
ok |
21 |
Correct |
72 ms |
189632 KB |
ok |
22 |
Correct |
67 ms |
189524 KB |
ok |
23 |
Correct |
68 ms |
189524 KB |
ok |
24 |
Correct |
67 ms |
189520 KB |
ok |
25 |
Correct |
76 ms |
189520 KB |
ok |
26 |
Correct |
68 ms |
189572 KB |
ok |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
65 ms |
189520 KB |
ok |
2 |
Correct |
67 ms |
189264 KB |
ok |
3 |
Correct |
67 ms |
189268 KB |
ok |
4 |
Correct |
71 ms |
189776 KB |
ok |
5 |
Correct |
64 ms |
189776 KB |
ok |
6 |
Correct |
72 ms |
189332 KB |
ok |
7 |
Correct |
65 ms |
189248 KB |
ok |
8 |
Correct |
69 ms |
189268 KB |
ok |
9 |
Correct |
77 ms |
189268 KB |
ok |
10 |
Correct |
66 ms |
189264 KB |
ok |
11 |
Correct |
77 ms |
189268 KB |
ok |
12 |
Correct |
66 ms |
189264 KB |
ok |
13 |
Correct |
67 ms |
189264 KB |
ok |
14 |
Correct |
64 ms |
189352 KB |
ok |
15 |
Correct |
67 ms |
189264 KB |
ok |
16 |
Correct |
65 ms |
189264 KB |
ok |
17 |
Correct |
73 ms |
189520 KB |
ok |
18 |
Correct |
68 ms |
189524 KB |
ok |
19 |
Correct |
77 ms |
189520 KB |
ok |
20 |
Correct |
71 ms |
189520 KB |
ok |
21 |
Correct |
66 ms |
189524 KB |
ok |
22 |
Correct |
67 ms |
189340 KB |
ok |
23 |
Correct |
72 ms |
189632 KB |
ok |
24 |
Correct |
67 ms |
189524 KB |
ok |
25 |
Correct |
68 ms |
189524 KB |
ok |
26 |
Correct |
67 ms |
189520 KB |
ok |
27 |
Correct |
76 ms |
189520 KB |
ok |
28 |
Correct |
68 ms |
189572 KB |
ok |
29 |
Correct |
66 ms |
189524 KB |
ok |
30 |
Correct |
67 ms |
191312 KB |
ok |
31 |
Correct |
68 ms |
191316 KB |
ok |
32 |
Correct |
69 ms |
191312 KB |
ok |
33 |
Correct |
66 ms |
191312 KB |
ok |
34 |
Correct |
71 ms |
191252 KB |
ok |
35 |
Correct |
66 ms |
191108 KB |
ok |
36 |
Correct |
69 ms |
191060 KB |
ok |
37 |
Correct |
68 ms |
191056 KB |
ok |
38 |
Correct |
68 ms |
191060 KB |
ok |
39 |
Correct |
65 ms |
191208 KB |
ok |
40 |
Correct |
69 ms |
191060 KB |
ok |
41 |
Correct |
65 ms |
191312 KB |
ok |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
65 ms |
189520 KB |
ok |
2 |
Correct |
67 ms |
189264 KB |
ok |
3 |
Correct |
67 ms |
189268 KB |
ok |
4 |
Correct |
71 ms |
189776 KB |
ok |
5 |
Correct |
64 ms |
189776 KB |
ok |
6 |
Correct |
72 ms |
189332 KB |
ok |
7 |
Correct |
65 ms |
189248 KB |
ok |
8 |
Correct |
69 ms |
189268 KB |
ok |
9 |
Correct |
77 ms |
189268 KB |
ok |
10 |
Correct |
66 ms |
189264 KB |
ok |
11 |
Correct |
77 ms |
189268 KB |
ok |
12 |
Correct |
66 ms |
189264 KB |
ok |
13 |
Correct |
67 ms |
189264 KB |
ok |
14 |
Correct |
64 ms |
189352 KB |
ok |
15 |
Correct |
67 ms |
189264 KB |
ok |
16 |
Correct |
65 ms |
189264 KB |
ok |
17 |
Correct |
73 ms |
189520 KB |
ok |
18 |
Correct |
68 ms |
189524 KB |
ok |
19 |
Correct |
77 ms |
189520 KB |
ok |
20 |
Correct |
71 ms |
189520 KB |
ok |
21 |
Correct |
66 ms |
189524 KB |
ok |
22 |
Correct |
67 ms |
189340 KB |
ok |
23 |
Correct |
72 ms |
189632 KB |
ok |
24 |
Correct |
67 ms |
189524 KB |
ok |
25 |
Correct |
68 ms |
189524 KB |
ok |
26 |
Correct |
67 ms |
189520 KB |
ok |
27 |
Correct |
76 ms |
189520 KB |
ok |
28 |
Correct |
68 ms |
189572 KB |
ok |
29 |
Correct |
66 ms |
189524 KB |
ok |
30 |
Correct |
67 ms |
191312 KB |
ok |
31 |
Correct |
68 ms |
191316 KB |
ok |
32 |
Correct |
69 ms |
191312 KB |
ok |
33 |
Correct |
66 ms |
191312 KB |
ok |
34 |
Correct |
71 ms |
191252 KB |
ok |
35 |
Correct |
66 ms |
191108 KB |
ok |
36 |
Correct |
69 ms |
191060 KB |
ok |
37 |
Correct |
68 ms |
191056 KB |
ok |
38 |
Correct |
68 ms |
191060 KB |
ok |
39 |
Correct |
65 ms |
191208 KB |
ok |
40 |
Correct |
69 ms |
191060 KB |
ok |
41 |
Correct |
65 ms |
191312 KB |
ok |
42 |
Correct |
138 ms |
267208 KB |
ok |
43 |
Correct |
134 ms |
268236 KB |
ok |
44 |
Correct |
119 ms |
264660 KB |
ok |
45 |
Correct |
117 ms |
264360 KB |
ok |
46 |
Correct |
127 ms |
266192 KB |
ok |
47 |
Correct |
105 ms |
263760 KB |
ok |
48 |
Correct |
216 ms |
261712 KB |
ok |
49 |
Correct |
172 ms |
261688 KB |
ok |
50 |
Correct |
106 ms |
264972 KB |
ok |
51 |
Correct |
125 ms |
265168 KB |
ok |
52 |
Correct |
240 ms |
256852 KB |
ok |
53 |
Correct |
106 ms |
254288 KB |
ok |
54 |
Correct |
222 ms |
257108 KB |
ok |
55 |
Correct |
352 ms |
259932 KB |
ok |
56 |
Correct |
101 ms |
257360 KB |
ok |
57 |
Correct |
553 ms |
267796 KB |
ok |
58 |
Correct |
494 ms |
268396 KB |
ok |
59 |
Correct |
434 ms |
268884 KB |
ok |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
65 ms |
189520 KB |
ok |
2 |
Correct |
67 ms |
189264 KB |
ok |
3 |
Correct |
67 ms |
189268 KB |
ok |
4 |
Correct |
71 ms |
189776 KB |
ok |
5 |
Correct |
64 ms |
189776 KB |
ok |
6 |
Correct |
69 ms |
189264 KB |
ok |
7 |
Correct |
74 ms |
189248 KB |
ok |
8 |
Correct |
69 ms |
198328 KB |
ok |
9 |
Correct |
102 ms |
263840 KB |
ok |
10 |
Correct |
572 ms |
675752 KB |
ok |
11 |
Correct |
72 ms |
189332 KB |
ok |
12 |
Correct |
65 ms |
189248 KB |
ok |
13 |
Correct |
69 ms |
189268 KB |
ok |
14 |
Correct |
77 ms |
189268 KB |
ok |
15 |
Correct |
66 ms |
189264 KB |
ok |
16 |
Correct |
77 ms |
189268 KB |
ok |
17 |
Correct |
66 ms |
189264 KB |
ok |
18 |
Correct |
67 ms |
189264 KB |
ok |
19 |
Correct |
64 ms |
189352 KB |
ok |
20 |
Correct |
67 ms |
189264 KB |
ok |
21 |
Correct |
65 ms |
189264 KB |
ok |
22 |
Correct |
73 ms |
189520 KB |
ok |
23 |
Correct |
68 ms |
189524 KB |
ok |
24 |
Correct |
77 ms |
189520 KB |
ok |
25 |
Correct |
71 ms |
189520 KB |
ok |
26 |
Correct |
66 ms |
189524 KB |
ok |
27 |
Correct |
67 ms |
189340 KB |
ok |
28 |
Correct |
72 ms |
189632 KB |
ok |
29 |
Correct |
67 ms |
189524 KB |
ok |
30 |
Correct |
68 ms |
189524 KB |
ok |
31 |
Correct |
67 ms |
189520 KB |
ok |
32 |
Correct |
76 ms |
189520 KB |
ok |
33 |
Correct |
68 ms |
189572 KB |
ok |
34 |
Correct |
66 ms |
189524 KB |
ok |
35 |
Correct |
67 ms |
191312 KB |
ok |
36 |
Correct |
68 ms |
191316 KB |
ok |
37 |
Correct |
69 ms |
191312 KB |
ok |
38 |
Correct |
66 ms |
191312 KB |
ok |
39 |
Correct |
71 ms |
191252 KB |
ok |
40 |
Correct |
66 ms |
191108 KB |
ok |
41 |
Correct |
69 ms |
191060 KB |
ok |
42 |
Correct |
68 ms |
191056 KB |
ok |
43 |
Correct |
68 ms |
191060 KB |
ok |
44 |
Correct |
65 ms |
191208 KB |
ok |
45 |
Correct |
69 ms |
191060 KB |
ok |
46 |
Correct |
65 ms |
191312 KB |
ok |
47 |
Correct |
138 ms |
267208 KB |
ok |
48 |
Correct |
134 ms |
268236 KB |
ok |
49 |
Correct |
119 ms |
264660 KB |
ok |
50 |
Correct |
117 ms |
264360 KB |
ok |
51 |
Correct |
127 ms |
266192 KB |
ok |
52 |
Correct |
105 ms |
263760 KB |
ok |
53 |
Correct |
216 ms |
261712 KB |
ok |
54 |
Correct |
172 ms |
261688 KB |
ok |
55 |
Correct |
106 ms |
264972 KB |
ok |
56 |
Correct |
125 ms |
265168 KB |
ok |
57 |
Correct |
240 ms |
256852 KB |
ok |
58 |
Correct |
106 ms |
254288 KB |
ok |
59 |
Correct |
222 ms |
257108 KB |
ok |
60 |
Correct |
352 ms |
259932 KB |
ok |
61 |
Correct |
101 ms |
257360 KB |
ok |
62 |
Correct |
553 ms |
267796 KB |
ok |
63 |
Correct |
494 ms |
268396 KB |
ok |
64 |
Correct |
434 ms |
268884 KB |
ok |
65 |
Correct |
958 ms |
732076 KB |
ok |
66 |
Correct |
681 ms |
736076 KB |
ok |
67 |
Correct |
560 ms |
702204 KB |
ok |
68 |
Correct |
666 ms |
678364 KB |
ok |
69 |
Correct |
900 ms |
690560 KB |
ok |
70 |
Correct |
943 ms |
700864 KB |
ok |
71 |
Correct |
582 ms |
677200 KB |
ok |
72 |
Correct |
519 ms |
675920 KB |
ok |
73 |
Execution timed out |
4580 ms |
668448 KB |
Time limit exceeded |
74 |
Halted |
0 ms |
0 KB |
- |