RosettaCodeData/Task/Range-extraction/MATLAB/range-extraction.m

24 lines
650 B
Matlab

function S=range_extraction(L)
% Range extraction
L(end+1) = NaN;
S = int2str(L(1));
k = 1;
while (k < length(L)-1)
if (L(k)+1==L(k+1) && L(k)+2==L(k+2) )
m = 2;
while (L(k)+m==L(k+m))
m = m+1;
end
k = k+m-1;
S = [S,'-',int2str(L(k))];
else
k = k+1;
S = [S,',',int2str(L(k))];
end
end
end
disp(range_extraction([0, 1, 2, 4, 6, 7, 8, 11, 12, 14, 15, ...
16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 27, ...
28, 29, 30, 31, 32, 33, 35, 36, 37, 38, 39]))