#include <stdio.h>
int N, arr[2230][2230], tab[2230][2230];
void upd(int x, int y)
{
int m = 2147483647;
if(x > 1)
{
if(arr[y][x] < arr[y][x-1])
{
if(tab[y][x-1] < m) m = tab[y][x-1];
}
else
{
if(tab[y][x-1] + arr[y][x] - arr[y][x-1] + 1 < m) m = tab[y][x-1] + arr[y][x] - arr[y][x-1] + 1;
}
}
if(y > 1)
{
if(arr[y][x] < arr[y-1][x])
{
if(tab[y-1][x] < m) m = tab[y-1][x];
}
else
{
if(tab[y-1][x] + arr[y][x] - arr[y-1][x] + 1 < m) m = tab[y-1][x] + arr[y][x] - arr[y-1][x] + 1;
}
}
tab[y][x] = m;
}
int main()
{
//freopen("input.txt", "r", stdin);
int i, j;
scanf("%d", &N);
for(i = 1; i <= N; i ++) for(j = 1; j <= N; j ++) scanf("%d", &arr[i][j]);
for(i = 2; i <= N; i ++)
{
int x, y;
for(x = 1, y = i; x <= i; x ++, y --)
{
upd(x, y);
}
}
for(i = 2; i <= N; i ++)
{
int x, y;
for(x = i, y = N; x <= N; x ++, y --)
{
upd(x, y);
}
}
printf("%d", tab[N][N]);
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
39936 KB |
Output is correct |
2 |
Correct |
0 ms |
39936 KB |
Output is correct |
3 |
Correct |
0 ms |
39936 KB |
Output is correct |
4 |
Correct |
0 ms |
39936 KB |
Output is correct |
5 |
Correct |
0 ms |
39936 KB |
Output is correct |
6 |
Correct |
0 ms |
39936 KB |
Output is correct |
7 |
Correct |
0 ms |
39936 KB |
Output is correct |
8 |
Correct |
0 ms |
39936 KB |
Output is correct |
9 |
Correct |
0 ms |
39936 KB |
Output is correct |
10 |
Correct |
0 ms |
39936 KB |
Output is correct |
11 |
Correct |
0 ms |
39936 KB |
Output is correct |
12 |
Correct |
0 ms |
39936 KB |
Output is correct |
13 |
Correct |
0 ms |
39936 KB |
Output is correct |
14 |
Correct |
0 ms |
39936 KB |
Output is correct |
15 |
Correct |
0 ms |
39936 KB |
Output is correct |
16 |
Correct |
0 ms |
39936 KB |
Output is correct |
17 |
Correct |
0 ms |
39936 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
39936 KB |
Output is correct |
2 |
Correct |
0 ms |
39936 KB |
Output is correct |
3 |
Correct |
0 ms |
39936 KB |
Output is correct |
4 |
Correct |
0 ms |
39936 KB |
Output is correct |
5 |
Correct |
0 ms |
39936 KB |
Output is correct |
6 |
Correct |
0 ms |
39936 KB |
Output is correct |
7 |
Correct |
0 ms |
39936 KB |
Output is correct |
8 |
Correct |
0 ms |
39936 KB |
Output is correct |
9 |
Correct |
0 ms |
39936 KB |
Output is correct |
10 |
Correct |
0 ms |
39936 KB |
Output is correct |
11 |
Correct |
0 ms |
39936 KB |
Output is correct |
12 |
Correct |
0 ms |
39936 KB |
Output is correct |
13 |
Correct |
0 ms |
39936 KB |
Output is correct |
14 |
Correct |
0 ms |
39936 KB |
Output is correct |
15 |
Correct |
0 ms |
39936 KB |
Output is correct |
16 |
Correct |
0 ms |
39936 KB |
Output is correct |
17 |
Correct |
0 ms |
39936 KB |
Output is correct |
18 |
Correct |
0 ms |
39936 KB |
Output is correct |
19 |
Correct |
0 ms |
39936 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
8 ms |
39936 KB |
Output is correct |
2 |
Correct |
4 ms |
39936 KB |
Output is correct |
3 |
Correct |
4 ms |
39936 KB |
Output is correct |
4 |
Correct |
4 ms |
39936 KB |
Output is correct |
5 |
Correct |
8 ms |
39936 KB |
Output is correct |
6 |
Correct |
4 ms |
39936 KB |
Output is correct |
7 |
Correct |
8 ms |
39936 KB |
Output is correct |
8 |
Correct |
4 ms |
39936 KB |
Output is correct |
9 |
Correct |
4 ms |
39936 KB |
Output is correct |
10 |
Correct |
8 ms |
39936 KB |
Output is correct |
11 |
Correct |
0 ms |
39936 KB |
Output is correct |
12 |
Correct |
0 ms |
39936 KB |
Output is correct |
13 |
Correct |
4 ms |
39936 KB |
Output is correct |
14 |
Correct |
8 ms |
39936 KB |
Output is correct |
15 |
Correct |
4 ms |
39936 KB |
Output is correct |
16 |
Correct |
0 ms |
39936 KB |
Output is correct |
17 |
Correct |
4 ms |
39936 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
792 ms |
39936 KB |
Output is correct |
2 |
Correct |
784 ms |
39936 KB |
Output is correct |
3 |
Correct |
800 ms |
39936 KB |
Output is correct |
4 |
Correct |
776 ms |
39936 KB |
Output is correct |
5 |
Correct |
636 ms |
39936 KB |
Output is correct |
6 |
Correct |
704 ms |
39936 KB |
Output is correct |
7 |
Correct |
788 ms |
39936 KB |
Output is correct |
8 |
Correct |
828 ms |
39936 KB |
Output is correct |
9 |
Correct |
796 ms |
39936 KB |
Output is correct |
10 |
Correct |
728 ms |
39936 KB |
Output is correct |
11 |
Correct |
700 ms |
39936 KB |
Output is correct |
12 |
Correct |
696 ms |
39936 KB |
Output is correct |
13 |
Correct |
652 ms |
39936 KB |
Output is correct |
14 |
Correct |
708 ms |
39936 KB |
Output is correct |
15 |
Correct |
572 ms |
39936 KB |
Output is correct |
16 |
Correct |
760 ms |
39936 KB |
Output is correct |
17 |
Correct |
708 ms |
39936 KB |
Output is correct |
18 |
Correct |
684 ms |
39936 KB |
Output is correct |
19 |
Correct |
732 ms |
39936 KB |
Output is correct |
20 |
Correct |
696 ms |
39936 KB |
Output is correct |
21 |
Correct |
652 ms |
39936 KB |
Output is correct |