Describe a strategy for writing template functions.

What will be an ideal response?

A good general strategy for writing function templates is to write an ordinary (non-template) function first. Then completely debug the ordinary function. When the debugging is complete, convert the ordinary function to a template function by replacing type names with a type parameter. The concrete case is easier to understand. There are fewer details to worry about, in particular, you do not have to be concerned about template syntax rules.