#include<bits/stdc++.h>
using namespace std;
int biggest_stadium(int N, vector<vector<int>> F)
{
vector<vector<int>> Nextleft(N+1, vector<int>(N+1, -1));
vector<int> dp(N+1, 0), sz(N+1, 0);
for (int i=0; i<N; i++)
{
for (int j=0; j<N; j++)
{
if (F[i][j]==1)Nextleft[i][j]=j;
else if (j>0)Nextleft[i][j]=Nextleft[i][j-1];
}
}
int maxx=0;
for (int Right=N-1; Right>=0; Right--)
{
vector<int> haut(N+1), bas(N+1),cursize(N+1);
for (int i=0; i<N; i++)
{
haut[i]=i;
bas[i]=i;
}
vector<int> ST;
for (int i=0; i<N; i++)
{
int last=i;
while(!ST.empty() && Nextleft[i][Right]>=Nextleft[ST.back()][Right])
{
last=ST.back();
ST.pop_back();
}
ST.push_back(i);
haut[i]=haut[last];
}
ST.clear();
for (int i=N-1; i>=0; i--)
{
int last=i;
while(!ST.empty() && Nextleft[i][Right]>=Nextleft[ST.back()][Right])
{
last=ST.back();
ST.pop_back();
}
ST.push_back(i);
bas[i]=bas[last];
cursize[i]=bas[i]-haut[i]+1;
}
vector<pair<int,int>> rectangles;
vector<int> l(N+1,-1), r(N+1, -1);
for (int i=0; i<N;i ++)
{
l[i]=i-1;
r[i]=i+1;
if (!F[i][Right])rectangles.push_back({Nextleft[i][Right], i});
}
r[N-1]=-1;
sort(rectangles.begin(), rectangles.end());
for (int i=rectangles.size()-1; i>=0; i--)
{
int x=rectangles[i].second;
dp[x]+=(cursize[x]-sz[x])*(Right-Nextleft[x][Right]);
}
for (int i=0; i<rectangles.size(); i++)
{
int x=rectangles[i].second;
if (r[x]!=-1)dp[r[x]]=max(dp[r[x]], dp[x]+((cursize[r[x]]-cursize[x])*(Right-Nextleft[r[x]][Right])));
if (l[x]!=-1)dp[l[x]]=max(dp[l[x]], dp[x]+((cursize[l[x]]-cursize[x])*(Right-Nextleft[l[x]][Right])));
if (r[x]!=-1)l[r[x]]=l[x];
if (l[x]!=-1)r[l[x]]=r[x];
sz[x]=cursize[x];
}
for (int i=0; i<N; i++)
{
if (F[i][Right]==1)
{
maxx=max(maxx, dp[i]);
dp[i]=0;
sz[i]=0;
}
}
}
for (int i=0; i<N; i++)maxx=max(maxx, dp[i]);
return maxx;
}
/* int main()
{
int N;
cin >> N;
vector<vector<int>> F(N, vector<int>(N));
for (int i=0; i<N; i++)
{
for (int j=0; j<N; j++)
{
cin >> F[i][j];
}
}
cout << biggest_stadium(N, F);
} */
Compilation message
soccer.cpp: In function 'int biggest_stadium(int, std::vector<std::vector<int> >)':
soccer.cpp:64:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
64 | for (int i=0; i<rectangles.size(); i++)
| ~^~~~~~~~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
ok |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
600 KB |
ok |
2 |
Correct |
0 ms |
348 KB |
ok |
3 |
Correct |
0 ms |
348 KB |
ok |
4 |
Correct |
0 ms |
348 KB |
ok |
5 |
Correct |
1 ms |
348 KB |
ok |
6 |
Correct |
0 ms |
348 KB |
ok |
7 |
Correct |
1 ms |
348 KB |
ok |
8 |
Correct |
25 ms |
3420 KB |
ok |
9 |
Correct |
590 ms |
47652 KB |
ok |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
600 KB |
ok |
2 |
Correct |
0 ms |
348 KB |
ok |
3 |
Correct |
0 ms |
348 KB |
ok |
4 |
Correct |
0 ms |
348 KB |
ok |
5 |
Correct |
0 ms |
348 KB |
ok |
6 |
Correct |
0 ms |
348 KB |
ok |
7 |
Correct |
0 ms |
348 KB |
ok |
8 |
Correct |
0 ms |
348 KB |
ok |
9 |
Correct |
1 ms |
348 KB |
ok |
10 |
Correct |
0 ms |
348 KB |
ok |
11 |
Correct |
0 ms |
348 KB |
ok |
12 |
Correct |
0 ms |
348 KB |
ok |
13 |
Correct |
0 ms |
348 KB |
ok |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
ok |
2 |
Correct |
0 ms |
600 KB |
ok |
3 |
Correct |
0 ms |
348 KB |
ok |
4 |
Correct |
0 ms |
348 KB |
ok |
5 |
Correct |
0 ms |
348 KB |
ok |
6 |
Correct |
0 ms |
348 KB |
ok |
7 |
Correct |
0 ms |
348 KB |
ok |
8 |
Correct |
0 ms |
348 KB |
ok |
9 |
Correct |
0 ms |
348 KB |
ok |
10 |
Correct |
1 ms |
348 KB |
ok |
11 |
Correct |
0 ms |
348 KB |
ok |
12 |
Correct |
0 ms |
348 KB |
ok |
13 |
Correct |
0 ms |
348 KB |
ok |
14 |
Correct |
0 ms |
348 KB |
ok |
15 |
Correct |
0 ms |
348 KB |
ok |
16 |
Correct |
1 ms |
344 KB |
ok |
17 |
Correct |
0 ms |
348 KB |
ok |
18 |
Correct |
0 ms |
348 KB |
ok |
19 |
Correct |
0 ms |
348 KB |
ok |
20 |
Correct |
0 ms |
348 KB |
ok |
21 |
Correct |
0 ms |
348 KB |
ok |
22 |
Correct |
0 ms |
348 KB |
ok |
23 |
Correct |
0 ms |
348 KB |
ok |
24 |
Correct |
0 ms |
348 KB |
ok |
25 |
Correct |
0 ms |
348 KB |
ok |
26 |
Correct |
1 ms |
348 KB |
ok |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
ok |
2 |
Correct |
0 ms |
600 KB |
ok |
3 |
Correct |
0 ms |
348 KB |
ok |
4 |
Correct |
0 ms |
348 KB |
ok |
5 |
Correct |
0 ms |
348 KB |
ok |
6 |
Correct |
0 ms |
348 KB |
ok |
7 |
Correct |
0 ms |
348 KB |
ok |
8 |
Correct |
0 ms |
348 KB |
ok |
9 |
Correct |
0 ms |
348 KB |
ok |
10 |
Correct |
0 ms |
348 KB |
ok |
11 |
Correct |
0 ms |
348 KB |
ok |
12 |
Correct |
1 ms |
348 KB |
ok |
13 |
Correct |
0 ms |
348 KB |
ok |
14 |
Correct |
0 ms |
348 KB |
ok |
15 |
Correct |
0 ms |
348 KB |
ok |
16 |
Correct |
0 ms |
348 KB |
ok |
17 |
Correct |
0 ms |
348 KB |
ok |
18 |
Correct |
1 ms |
344 KB |
ok |
19 |
Correct |
0 ms |
348 KB |
ok |
20 |
Correct |
0 ms |
348 KB |
ok |
21 |
Correct |
0 ms |
348 KB |
ok |
22 |
Correct |
0 ms |
348 KB |
ok |
23 |
Correct |
0 ms |
348 KB |
ok |
24 |
Correct |
0 ms |
348 KB |
ok |
25 |
Correct |
0 ms |
348 KB |
ok |
26 |
Correct |
0 ms |
348 KB |
ok |
27 |
Correct |
0 ms |
348 KB |
ok |
28 |
Correct |
1 ms |
348 KB |
ok |
29 |
Correct |
0 ms |
348 KB |
ok |
30 |
Correct |
0 ms |
348 KB |
ok |
31 |
Correct |
0 ms |
344 KB |
ok |
32 |
Correct |
1 ms |
348 KB |
ok |
33 |
Correct |
1 ms |
348 KB |
ok |
34 |
Correct |
0 ms |
348 KB |
ok |
35 |
Correct |
1 ms |
344 KB |
ok |
36 |
Correct |
0 ms |
348 KB |
ok |
37 |
Correct |
1 ms |
344 KB |
ok |
38 |
Correct |
1 ms |
344 KB |
ok |
39 |
Correct |
1 ms |
592 KB |
ok |
40 |
Correct |
0 ms |
348 KB |
ok |
41 |
Correct |
1 ms |
344 KB |
ok |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
ok |
2 |
Correct |
0 ms |
600 KB |
ok |
3 |
Correct |
0 ms |
348 KB |
ok |
4 |
Correct |
0 ms |
348 KB |
ok |
5 |
Correct |
0 ms |
348 KB |
ok |
6 |
Correct |
0 ms |
348 KB |
ok |
7 |
Correct |
0 ms |
348 KB |
ok |
8 |
Correct |
0 ms |
348 KB |
ok |
9 |
Correct |
0 ms |
348 KB |
ok |
10 |
Correct |
0 ms |
348 KB |
ok |
11 |
Correct |
0 ms |
348 KB |
ok |
12 |
Correct |
1 ms |
348 KB |
ok |
13 |
Correct |
0 ms |
348 KB |
ok |
14 |
Correct |
0 ms |
348 KB |
ok |
15 |
Correct |
0 ms |
348 KB |
ok |
16 |
Correct |
0 ms |
348 KB |
ok |
17 |
Correct |
0 ms |
348 KB |
ok |
18 |
Correct |
1 ms |
344 KB |
ok |
19 |
Correct |
0 ms |
348 KB |
ok |
20 |
Correct |
0 ms |
348 KB |
ok |
21 |
Correct |
0 ms |
348 KB |
ok |
22 |
Correct |
0 ms |
348 KB |
ok |
23 |
Correct |
0 ms |
348 KB |
ok |
24 |
Correct |
0 ms |
348 KB |
ok |
25 |
Correct |
0 ms |
348 KB |
ok |
26 |
Correct |
0 ms |
348 KB |
ok |
27 |
Correct |
0 ms |
348 KB |
ok |
28 |
Correct |
1 ms |
348 KB |
ok |
29 |
Correct |
0 ms |
348 KB |
ok |
30 |
Correct |
0 ms |
348 KB |
ok |
31 |
Correct |
0 ms |
344 KB |
ok |
32 |
Correct |
1 ms |
348 KB |
ok |
33 |
Correct |
1 ms |
348 KB |
ok |
34 |
Correct |
0 ms |
348 KB |
ok |
35 |
Correct |
1 ms |
344 KB |
ok |
36 |
Correct |
0 ms |
348 KB |
ok |
37 |
Correct |
1 ms |
344 KB |
ok |
38 |
Correct |
1 ms |
344 KB |
ok |
39 |
Correct |
1 ms |
592 KB |
ok |
40 |
Correct |
0 ms |
348 KB |
ok |
41 |
Correct |
1 ms |
344 KB |
ok |
42 |
Correct |
40 ms |
3932 KB |
ok |
43 |
Correct |
38 ms |
3932 KB |
ok |
44 |
Correct |
39 ms |
3672 KB |
ok |
45 |
Correct |
35 ms |
3664 KB |
ok |
46 |
Correct |
40 ms |
3792 KB |
ok |
47 |
Correct |
29 ms |
3928 KB |
ok |
48 |
Correct |
25 ms |
3928 KB |
ok |
49 |
Correct |
25 ms |
3932 KB |
ok |
50 |
Correct |
25 ms |
3912 KB |
ok |
51 |
Correct |
31 ms |
3932 KB |
ok |
52 |
Correct |
20 ms |
3664 KB |
ok |
53 |
Correct |
19 ms |
3672 KB |
ok |
54 |
Correct |
19 ms |
3928 KB |
ok |
55 |
Correct |
36 ms |
3708 KB |
ok |
56 |
Correct |
26 ms |
3932 KB |
ok |
57 |
Correct |
28 ms |
3672 KB |
ok |
58 |
Correct |
28 ms |
3928 KB |
ok |
59 |
Correct |
28 ms |
3932 KB |
ok |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
ok |
2 |
Correct |
0 ms |
600 KB |
ok |
3 |
Correct |
0 ms |
348 KB |
ok |
4 |
Correct |
0 ms |
348 KB |
ok |
5 |
Correct |
0 ms |
348 KB |
ok |
6 |
Correct |
1 ms |
348 KB |
ok |
7 |
Correct |
0 ms |
348 KB |
ok |
8 |
Correct |
1 ms |
348 KB |
ok |
9 |
Correct |
25 ms |
3420 KB |
ok |
10 |
Correct |
590 ms |
47652 KB |
ok |
11 |
Correct |
0 ms |
348 KB |
ok |
12 |
Correct |
0 ms |
348 KB |
ok |
13 |
Correct |
0 ms |
348 KB |
ok |
14 |
Correct |
0 ms |
348 KB |
ok |
15 |
Correct |
0 ms |
348 KB |
ok |
16 |
Correct |
0 ms |
348 KB |
ok |
17 |
Correct |
1 ms |
348 KB |
ok |
18 |
Correct |
0 ms |
348 KB |
ok |
19 |
Correct |
0 ms |
348 KB |
ok |
20 |
Correct |
0 ms |
348 KB |
ok |
21 |
Correct |
0 ms |
348 KB |
ok |
22 |
Correct |
0 ms |
348 KB |
ok |
23 |
Correct |
1 ms |
344 KB |
ok |
24 |
Correct |
0 ms |
348 KB |
ok |
25 |
Correct |
0 ms |
348 KB |
ok |
26 |
Correct |
0 ms |
348 KB |
ok |
27 |
Correct |
0 ms |
348 KB |
ok |
28 |
Correct |
0 ms |
348 KB |
ok |
29 |
Correct |
0 ms |
348 KB |
ok |
30 |
Correct |
0 ms |
348 KB |
ok |
31 |
Correct |
0 ms |
348 KB |
ok |
32 |
Correct |
0 ms |
348 KB |
ok |
33 |
Correct |
1 ms |
348 KB |
ok |
34 |
Correct |
0 ms |
348 KB |
ok |
35 |
Correct |
0 ms |
348 KB |
ok |
36 |
Correct |
0 ms |
344 KB |
ok |
37 |
Correct |
1 ms |
348 KB |
ok |
38 |
Correct |
1 ms |
348 KB |
ok |
39 |
Correct |
0 ms |
348 KB |
ok |
40 |
Correct |
1 ms |
344 KB |
ok |
41 |
Correct |
0 ms |
348 KB |
ok |
42 |
Correct |
1 ms |
344 KB |
ok |
43 |
Correct |
1 ms |
344 KB |
ok |
44 |
Correct |
1 ms |
592 KB |
ok |
45 |
Correct |
0 ms |
348 KB |
ok |
46 |
Correct |
1 ms |
344 KB |
ok |
47 |
Correct |
40 ms |
3932 KB |
ok |
48 |
Correct |
38 ms |
3932 KB |
ok |
49 |
Correct |
39 ms |
3672 KB |
ok |
50 |
Correct |
35 ms |
3664 KB |
ok |
51 |
Correct |
40 ms |
3792 KB |
ok |
52 |
Correct |
29 ms |
3928 KB |
ok |
53 |
Correct |
25 ms |
3928 KB |
ok |
54 |
Correct |
25 ms |
3932 KB |
ok |
55 |
Correct |
25 ms |
3912 KB |
ok |
56 |
Correct |
31 ms |
3932 KB |
ok |
57 |
Correct |
20 ms |
3664 KB |
ok |
58 |
Correct |
19 ms |
3672 KB |
ok |
59 |
Correct |
19 ms |
3928 KB |
ok |
60 |
Correct |
36 ms |
3708 KB |
ok |
61 |
Correct |
26 ms |
3932 KB |
ok |
62 |
Correct |
28 ms |
3672 KB |
ok |
63 |
Correct |
28 ms |
3928 KB |
ok |
64 |
Correct |
28 ms |
3932 KB |
ok |
65 |
Correct |
822 ms |
55376 KB |
ok |
66 |
Correct |
561 ms |
55636 KB |
ok |
67 |
Correct |
436 ms |
55428 KB |
ok |
68 |
Correct |
764 ms |
55376 KB |
ok |
69 |
Correct |
849 ms |
55980 KB |
ok |
70 |
Correct |
843 ms |
55376 KB |
ok |
71 |
Correct |
747 ms |
55308 KB |
ok |
72 |
Correct |
661 ms |
55536 KB |
ok |
73 |
Correct |
568 ms |
55632 KB |
ok |
74 |
Correct |
560 ms |
55544 KB |
ok |
75 |
Correct |
564 ms |
55632 KB |
ok |
76 |
Correct |
564 ms |
55640 KB |
ok |
77 |
Correct |
596 ms |
55432 KB |
ok |
78 |
Correct |
639 ms |
55544 KB |
ok |
79 |
Correct |
400 ms |
55512 KB |
ok |
80 |
Correct |
402 ms |
55380 KB |
ok |
81 |
Correct |
419 ms |
55380 KB |
ok |
82 |
Correct |
472 ms |
55524 KB |
ok |
83 |
Correct |
466 ms |
55576 KB |
ok |
84 |
Correct |
408 ms |
55592 KB |
ok |
85 |
Correct |
370 ms |
55304 KB |
ok |
86 |
Correct |
393 ms |
55532 KB |
ok |
87 |
Correct |
403 ms |
55312 KB |
ok |
88 |
Correct |
423 ms |
55536 KB |
ok |
89 |
Correct |
579 ms |
55764 KB |
ok |
90 |
Correct |
575 ms |
55544 KB |
ok |
91 |
Correct |
619 ms |
55724 KB |
ok |
92 |
Correct |
431 ms |
55380 KB |
ok |
93 |
Correct |
439 ms |
55632 KB |
ok |
94 |
Correct |
412 ms |
55300 KB |
ok |
95 |
Correct |
420 ms |
55508 KB |
ok |
96 |
Correct |
547 ms |
55376 KB |
ok |
97 |
Correct |
410 ms |
55380 KB |
ok |
98 |
Correct |
396 ms |
55632 KB |
ok |
99 |
Correct |
702 ms |
55696 KB |
ok |
100 |
Correct |
576 ms |
55512 KB |
ok |
101 |
Correct |
585 ms |
55608 KB |
ok |
102 |
Correct |
594 ms |
55840 KB |
ok |
103 |
Correct |
597 ms |
55432 KB |
ok |
104 |
Correct |
631 ms |
55572 KB |
ok |
105 |
Correct |
633 ms |
55552 KB |
ok |
106 |
Correct |
608 ms |
55380 KB |
ok |
107 |
Correct |
642 ms |
55512 KB |
ok |
108 |
Correct |
628 ms |
55304 KB |
ok |
109 |
Correct |
687 ms |
47764 KB |
ok |