by@lip_of_cygnus
WA
501ms
freq = {} x=[] i=0 while gets() for word in $_.split('/\s/') a=word.split(" ") end x[i]=a i=i+1 end k=x[1][0] - x[0][0] printf("%d %d\n",k,x[3][2])
32 39 45 63 05 51 77 79 87 25 60 72
/volume/CODE:11: undefined method `(null)' for "63"(String)