#include <iostream>
using namespace std;
int n,m,a[55][55],pd[55][55][55][55];
int main()
{
cin>>n>>m;
for(int i=1;i<=n;++i)
for(int j=1;j<=m;++j)
{
cin>>a[i][j];
a[i][j]+=a[i-1][j]+a[i][j-1]-a[i-1][j-1];
}
for(int i=1;i<=n;++i)
for(int j=1;j<=m;++j)
for(int ii=1;ii<=n;++ii)
for(int jj=1;jj<=m;++jj)
pd[i][j][ii][jj]=1000000000;
for(int l=1;l<=n;++l)
for(int c=1;c<=m;++c)
for(int i=1;i+l-1<=n;++i)
for(int j=1;j+c-1<=m;++j)
{
int ii=i+l-1;
int jj=j+c-1;
if(i==ii&&j==jj)
pd[i][j][ii][jj]=0;
else
{
for(int iii=i+1;iii<=ii;++iii)
pd[i][j][ii][jj]=min(pd[i][j][ii][jj],pd[i][j][iii-1][jj]+pd[iii][j][ii][jj]);
for(int jjj=j+1;jjj<=jj;++jjj)
pd[i][j][ii][jj]=min(pd[i][j][ii][jj],pd[i][j][ii][jjj-1]+pd[i][jjj][ii][jj]);
pd[i][j][ii][jj]+=a[ii][jj]-a[i-1][jj]-a[ii][j-1]+a[i-1][j-1];
}
}
cout<<pd[1][1][n][m];
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
304 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
468 KB |
Output is correct |
6 |
Correct |
1 ms |
980 KB |
Output is correct |
7 |
Correct |
1 ms |
1072 KB |
Output is correct |
8 |
Correct |
3 ms |
3412 KB |
Output is correct |
9 |
Correct |
5 ms |
5040 KB |
Output is correct |
10 |
Correct |
6 ms |
6100 KB |
Output is correct |
11 |
Correct |
6 ms |
5048 KB |
Output is correct |
12 |
Correct |
22 ms |
11072 KB |
Output is correct |
13 |
Correct |
39 ms |
14372 KB |
Output is correct |
14 |
Correct |
7 ms |
6328 KB |
Output is correct |
15 |
Correct |
43 ms |
16096 KB |
Output is correct |
16 |
Correct |
4 ms |
5332 KB |
Output is correct |
17 |
Correct |
22 ms |
10840 KB |
Output is correct |
18 |
Correct |
136 ms |
23240 KB |
Output is correct |
19 |
Correct |
244 ms |
28244 KB |
Output is correct |
20 |
Correct |
286 ms |
30020 KB |
Output is correct |