RosettaCodeData/Task/Range-consolidation/Jq/range-consolidation.jq
2023-07-01 13:44:08 -04:00

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Text

def normalize: map(sort) | sort;
def consolidate:
normalize
| length as $length
| reduce range(0; $length) as $i (.;
.[$i] as $r1
| if $r1 != []
then reduce range($i+1; $length) as $j (.;
.[$j] as $r2
| if $r2 != [] and ($r1[-1] >= $r2[0]) # intersect?
then .[$i] = [$r1[0], ([$r1[-1], $r2[-1]]|max)]
| .[$j] = []
else .
end )
else .
end )
| map(select(. != [])) ;
def testranges:
[[1.1, 2.2]],
[[6.1, 7.2], [7.2, 8.3]],
[[4, 3], [2, 1]],
[[4, 3], [2, 1], [-1, -2], [3.9, 10]],
[[1, 3], [-6, -1], [-4, -5], [8, 2], [-6, -6]]
| "\(.) => \(consolidate)"
;
testranges