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  1. shohkin = [100, 50, 30,20, 10, 0]
  2. data = []
  3. while w = gets
  4.     data << w.split()
  5. end
  6. data = data.zip(shohkin)
  7. 	.map{|e|e.flatten }
  8. 	.select{|e|e[-1]}
  9. h={}
  10. data.map { |e|
  11. 	h[e[1]]||=[0,0]
  12. 	h[e[1]][0]+=e[2]
  13. 	h[e[1]][1]+=1
  14. }
  15. h.map { |e| e[1][0]=e[1][0]/1.0/e[1][1] }
  16. h[data[-1][1]]=[0,0] if (data[5] && (data[4][1]==data[5][1])) 
  17. data.delete_at(-1)
  18. data.map { |e| printf("%s %g\n",e[0],h[e[1]][0]) }
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https://ideone.com/BKF85X
language:
Ruby (ruby 2.5.5)
created:
11 years ago
visibility:
secret

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