oj.uz

Submission #9308

# Submission time Handle Problem Language Result Execution time Memory
9308 2014-09-28T05:30:38 Z lemonsqueeze On grid (kriii2_O) C++
0 / 4
 0 ms 216972 KB 
#include <stdio.h>
#include <algorithm>
using namespace std;

int n, m;
long long a[301][301];

long long s[301][301];
long long d[301][301];
long long w[301][301][302];

int main ()
{
	scanf ("%d%d", &n, &m);
	for (int i=1; i<=n; i++) for (int j=1; j<=m; j++) {
		scanf ("%lld", &a[i][j]);
		s[i][j] = s[i-1][j] + s[i][j-1] - s[i-1][j-1] + a[i][j];
	}

	for (int i=1; i<=n; i++) {
		for (int j=1; j<=m; j++) {
			d[i][j] = s[i][j];

			if (j>=2) {
				for (int a=1; a<i; a++) {
					if (d[i][j] < w[a][i][j] + s[i][j] - s[a][j])
						d[i][j] = w[a][i][j] + s[i][j] - s[a][j];
				}
			}

			for (int a=1; a<i; a++)
				w[a][i][j+1] = max (w[a][i][j], d[a][j] + s[a][j] - s[i][j]);
		}
	}

	printf ("%lld\n", d[n][m]);

	return 0;
}

/*

2 2
1 -1
-1 1

5 5
4 -2 3 -4 2
-2 1 1 4 -2
-3 1 -1 2 5
2 -4 2 3 5
1 -4 4 -1 -2

 */

Subtask #1
0.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 216972 KB Output is correct
2 Correct 0 ms 216972 KB Output is correct
3 Correct 0 ms 216972 KB Output is correct
4 Correct 0 ms 216972 KB Output is correct
5 Correct 0 ms 216972 KB Output is correct
6 Correct 0 ms 216972 KB Output is correct
7 Correct 0 ms 216972 KB Output is correct
8 Correct 0 ms 216972 KB Output is correct
9 Correct 0 ms 216972 KB Output is correct
10 Incorrect 0 ms 216972 KB Output isn't correct
11 Halted 0 ms 0 KB -

Subtask #2
0.0 / 3.0

# Verdict Execution time Memory Grader output
1 Halted 0 ms 0 KB -