Given a matrix called 'Heights' we should answer with a matrix called 'Path' that goes from space Heights(1,1) to space Height(m,n).

`Matrix 'Heights' 10 | 12 | 15 --------------- 11 | 11 | 12 --------------- 13 | 14 | 15`

So we are in Heights(1,1) and we can only move only – East – Southeast – South – (if the spaces have the same values we preferred first Southeast then East then South)

`Matrix 'Path' 1 1 10 2 2 11 2 3 12 3 3 15`

The code:

`function Path = get_path(Heights) m = 1; n = 1; M = [1,1,Heights(1,1)]; % Southwest = Heights(m+1,n+1)`

% East = Heights(m,n+1)

% South = Heights(m+1,n)

while m <= size(Heights,1) && n <= size(Heights,2) if m < size(Heights,1) && n < size(Heights,2) if Heights(m+1,n+1) <= Heights(m,n+1) && Heights(m+1,n+1) <= Heights(m+1,n) M = [M; m+1,n+1,Heights(m+1,n+1)]; elseif Heights(m+1,n+1) <= Heights(m,n+1) && Heights(m+1,n+1) > Heights(m+1,n) M = [M; m+1,n,Heights(m+1,n)]; elseif Heights(m+1,n+1) > Heights(m,n+1) && Heights(m,n+1) <= Heights(m+1,n) M = [M; m,n+1,Heights(m,n+1)]; elseif Heights(m+1,n+1) > Heights(m,n+1) && Heights(m,n+1) > Heights(m+1,n) M = [M; m+1,n,Heights(m+1,n)]; end elseif m == size(Heights,1) && n < size(Heights,2) M = [M; m,n+1,Altitudes(m,n+1)]; elseif m < size(Heights,1) && n == size(Heights,2) M = [M; m+1,n,Heights(m+1,n)]; elseif m == size(Heights,1) && n == size(Heights,2) M = [M; m,n,Heights(m,n)]; end end Caminho = Mend

The problem is when I go to the command line and call the function is just stays blank…

## Best Answer