This draft confuses the usual, explicit definition of functions with algorithmic definitions. For example, the function on the real plane that takes (a,b) and returns 1 when a< b or returns 0 otherwise, where < is a well-ordering on the reals given by the axiom of choice, is certainly not algorithmic.
An average full-grown male Labrador Retriever weighs anywhere between 65 and 80 lbs. Males are characteristically larger than females, though are just as prone to becoming overweight. The average female Labrador Retriever can weigh from 55 to 70 lbs, depending on bone structure and diet.
After the age of 26 weeks the growth slows down. When your Labrador is one year old, the weight will be 65 to 80 pounds for dogs and 55 to 70 pounds for bitches. Between the age of one year and three years they gain another 5 to 10 pounds. .