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  1. [0,1,2,5,6,7,8].combination(2){|x| puts x.join(" ") }
Success #stdin #stdout 0.01s 6316KB
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stdin
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Standard input is empty
stdout
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0 1
0 2
0 5
0 6
0 7
0 8
1 2
1 5
1 6
1 7
1 8
2 5
2 6
2 7
2 8
5 6
5 7
5 8
6 7
6 8
7 8
https://ideone.com/ZQAxAR
language:
Ruby (ruby 2.5.5)
created:
1 year ago
visibility:
public

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