#include <bits/stdc++.h>
using namespace std;
int n,m,a[1005][1005];
int bestmic[1005][1005],bestmare[1005][1005];
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
cin >> n >> m;
for (int i = 1; i <= n; i++)
for (int j = 1; j <= m; j++)
cin >> a[i][j];
for (int i = 1; i <= n; i++)
{
for (int j = 1; j <= m; j++)
{
bestmare[i][j] = bestmic[i][j] = -1e9;
}
}
for (int i = 1; i <= n; i++)
{
int mx = -1e9;
int mn = -2e9;
for (int j = 1; j <= m; j++)
{
mx = max(mx,a[i][j] + j);
mn = max(mn,-a[i][j] + j);
bestmare[i][j] = max(bestmare[i][j],mx - j);
bestmic[i][j] = max(bestmic[i][j],mn - j);
}
mx = -1e9;
mn = -2e9;
for (int j = m; j >= 1; j--)
{
mx = max(mx,a[i][j] - j);
mn = max(mn,-a[i][j] - j);
bestmare[i][j] = max(bestmare[i][j],mx + j);
bestmic[i][j] = max(bestmic[i][j],mn + j);
}
}
for (int j = 1; j <= m; j++)
{
int mx = -1e9;
int mn = -2e9;
for (int i = 1; i <= n; i++)
{
mx = max(mx,a[i][j] + i);
mn = max(mn,-a[i][j] + i);
bestmare[i][j] = max(bestmare[i][j],mx - i);
bestmic[i][j] = max(bestmic[i][j],mn - i);
}
mx = -1e9;
mn = -2e9;
for (int i = n; i >= 1; i--)
{
mx = max(mx,a[i][j] - i);
mn = max(mn,-a[i][j] - i);
bestmare[i][j] = max(bestmare[i][j],mx + i);
bestmic[i][j] = max(bestmic[i][j],mn + i);
}
}
/*for (int i = 1; i <= n; i++)
{
for (int j = 1; j <= m; j++)
cout << bestmare[i][j] << ' ';
cout << '\n';
}
cout << '\n';
for (int i = 1; i <= n; i++)
{
for (int j = 1; j <= m; j++)
cout << bestmic[i][j] << ' ';
cout << '\n';
}*/
int ans = -1e9;
for (int i = 1; i <= n; i++)
for (int j = 1; j <= m; j++)
ans = max(ans,bestmare[i][j] + bestmic[i][j] - 1);
cout << ans;
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
4444 KB |
Output is correct |
2 |
Correct |
1 ms |
4444 KB |
Output is correct |
3 |
Correct |
1 ms |
4444 KB |
Output is correct |
4 |
Correct |
1 ms |
4444 KB |
Output is correct |
5 |
Correct |
1 ms |
4444 KB |
Output is correct |
6 |
Correct |
1 ms |
4444 KB |
Output is correct |
7 |
Correct |
1 ms |
4444 KB |
Output is correct |
8 |
Correct |
1 ms |
4444 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
4444 KB |
Output is correct |
2 |
Correct |
1 ms |
4444 KB |
Output is correct |
3 |
Correct |
1 ms |
4564 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
4444 KB |
Output is correct |
2 |
Correct |
1 ms |
4444 KB |
Output is correct |
3 |
Correct |
1 ms |
4444 KB |
Output is correct |
4 |
Correct |
1 ms |
4444 KB |
Output is correct |
5 |
Correct |
1 ms |
4444 KB |
Output is correct |
6 |
Correct |
1 ms |
4444 KB |
Output is correct |
7 |
Correct |
1 ms |
4444 KB |
Output is correct |
8 |
Correct |
1 ms |
4444 KB |
Output is correct |
9 |
Correct |
2 ms |
6748 KB |
Output is correct |
10 |
Correct |
2 ms |
6748 KB |
Output is correct |
11 |
Correct |
2 ms |
6616 KB |
Output is correct |
12 |
Correct |
2 ms |
6748 KB |
Output is correct |
13 |
Correct |
2 ms |
6748 KB |
Output is correct |
14 |
Correct |
1 ms |
6748 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
4444 KB |
Output is correct |
2 |
Correct |
1 ms |
4444 KB |
Output is correct |
3 |
Correct |
1 ms |
4444 KB |
Output is correct |
4 |
Correct |
1 ms |
4444 KB |
Output is correct |
5 |
Correct |
1 ms |
4444 KB |
Output is correct |
6 |
Correct |
1 ms |
4444 KB |
Output is correct |
7 |
Correct |
1 ms |
4444 KB |
Output is correct |
8 |
Correct |
1 ms |
4444 KB |
Output is correct |
9 |
Correct |
1 ms |
4444 KB |
Output is correct |
10 |
Correct |
1 ms |
4444 KB |
Output is correct |
11 |
Correct |
1 ms |
4564 KB |
Output is correct |
12 |
Correct |
2 ms |
6748 KB |
Output is correct |
13 |
Correct |
2 ms |
6748 KB |
Output is correct |
14 |
Correct |
2 ms |
6616 KB |
Output is correct |
15 |
Correct |
2 ms |
6748 KB |
Output is correct |
16 |
Correct |
2 ms |
6748 KB |
Output is correct |
17 |
Correct |
1 ms |
6748 KB |
Output is correct |
18 |
Correct |
88 ms |
20660 KB |
Output is correct |
19 |
Correct |
91 ms |
20680 KB |
Output is correct |
20 |
Correct |
78 ms |
20268 KB |
Output is correct |
21 |
Correct |
88 ms |
20564 KB |
Output is correct |
22 |
Correct |
83 ms |
20788 KB |
Output is correct |
23 |
Correct |
85 ms |
20816 KB |
Output is correct |
24 |
Correct |
84 ms |
21316 KB |
Output is correct |