now with path compression

[gaissmai]

• even a little bit faster
• much less memory consumption

[coveralls]

Pull Request Test Coverage Report for Build 12602399184

Details

• 825 of 889 (92.8%) changed or added relevant lines in 8 files are covered.
• 8 unchanged lines in 3 files lost coverage.
• Overall coverage increased (+0.8%) to 93.817%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
internal/sparse/array.go	19	21	90.48%
stringify.go	31	33	93.94%
dumper.go	60	67	89.55%
overlaps.go	72	80	90.0%
table.go	330	343	96.21%
node.go	307	339	90.56%

Files with Coverage Reduction	New Missed Lines	%
overlaps.go	1	95.38%
node.go	1	91.06%
dumper.go	6	91.33%

Totals
Change from base Build 12470399339:	0.8%
Covered Lines:	1669
Relevant Lines:	1779

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💛 - Coveralls