# include <bits/stdc++.h>
using namespace std;
long long n,m,a[1005][1005],dp[1005][1005],ans;
int main() {
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++) {
dp[i][j]=a[i][j];
if(i>1) dp[i][j]=max(dp[i][j], dp[i-1][j]-1);
if(j>1) dp[i][j]=max(dp[i][j],dp[i][j-1]-1);
}
}
for (int i=n; i>=1; i--) {
for (int j=m; j>=1; j--) {
dp[i][j]=max(a[i][j],dp[i][j]);
if(j<m) dp[i][j]=max(dp[i][j], dp[i][j+1]-1);
if(i<n) dp[i][j]=max(dp[i][j],dp[i+1][j]-1);
}
}
for (int i=1; i<=n; i++) {
for (int j=1; j<=m; j++) {
ans=max(ans,dp[i][j]-a[i][j]);
}
}
cout<<ans-1<<endl;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
1 ms |
364 KB |
Output is correct |
7 |
Correct |
1 ms |
384 KB |
Output is correct |
8 |
Correct |
1 ms |
364 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
1 ms |
364 KB |
Output is correct |
7 |
Correct |
1 ms |
384 KB |
Output is correct |
8 |
Correct |
1 ms |
364 KB |
Output is correct |
9 |
Correct |
2 ms |
748 KB |
Output is correct |
10 |
Correct |
2 ms |
748 KB |
Output is correct |
11 |
Correct |
2 ms |
748 KB |
Output is correct |
12 |
Correct |
2 ms |
748 KB |
Output is correct |
13 |
Correct |
2 ms |
748 KB |
Output is correct |
14 |
Correct |
2 ms |
752 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
1 ms |
364 KB |
Output is correct |
7 |
Correct |
1 ms |
384 KB |
Output is correct |
8 |
Correct |
1 ms |
364 KB |
Output is correct |
9 |
Correct |
1 ms |
364 KB |
Output is correct |
10 |
Correct |
1 ms |
364 KB |
Output is correct |
11 |
Correct |
1 ms |
364 KB |
Output is correct |
12 |
Correct |
2 ms |
748 KB |
Output is correct |
13 |
Correct |
2 ms |
748 KB |
Output is correct |
14 |
Correct |
2 ms |
748 KB |
Output is correct |
15 |
Correct |
2 ms |
748 KB |
Output is correct |
16 |
Correct |
2 ms |
748 KB |
Output is correct |
17 |
Correct |
2 ms |
752 KB |
Output is correct |
18 |
Correct |
397 ms |
19308 KB |
Output is correct |
19 |
Correct |
409 ms |
18708 KB |
Output is correct |
20 |
Correct |
381 ms |
18732 KB |
Output is correct |
21 |
Correct |
387 ms |
18924 KB |
Output is correct |
22 |
Correct |
392 ms |
18668 KB |
Output is correct |
23 |
Correct |
385 ms |
18500 KB |
Output is correct |
24 |
Correct |
408 ms |
17952 KB |
Output is correct |