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  1. X=[*('0'..'9')]+[*('a'..'z')].map{|c|[c,c.upcase]}.flatten
  2. Y={};v=0;X.each{|c|Y[c]=(v+=1)}
  3. def x n;n.times.to_a.map{X[(rand()*X.length).to_i]}.join '';end
  4. def y m,n;m.times.to_a.map{x n};end
  5. def z r;r.sort{|a,b|v=-1;w=0;a.each_char{|c|d=b[v+=1];next if c==d;w=(Y[c]<Y[d]?-1:1);break};w};end
  6. def a b;b.reverse_each{|c|puts c};end
  7. a z(y 78,13)
Success #stdin #stdout 0.02s 7436KB
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https://ideone.com/FYVgb4
language:
Ruby (ruby 2.5.5)
created:
9 years ago
visibility:
public

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