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  1. [0,1,2,5,6,7].combination(4){|x| puts x.join(" ") }
Success #stdin #stdout 0.01s 8020KB
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Standard input is empty
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0 1 2 5
0 1 2 6
0 1 2 7
0 1 5 6
0 1 5 7
0 1 6 7
0 2 5 6
0 2 5 7
0 2 6 7
0 5 6 7
1 2 5 6
1 2 5 7
1 2 6 7
1 5 6 7
2 5 6 7
https://ideone.com/En1Ppv
language:
Ruby (ruby 2.5.5)
created:
18 hours ago
visibility:
public

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