hash = Hash.new
a.each do |item|
hash[item] = item
end
max = 0
i = 0
temp = a[i]
while (i < a.length)
temp_max = 0
decr = temp - 1
while hash.has_key?(temp)
temp_max+= 1
hash.delete(temp)
temp+= 1
end
while hash.has_key?(decr)
temp_max+= 1
hash.delete(decr)
decr-= 1
end
i+= 1
max = temp_max if max <= temp_max
temp_max = 0
temp = a[i]
end
max
Ruby O(n) Time O(n) space
nshganesh
#1