Problem 2.1: What are the requirements for function overloading? [Solution]

Problem 2.2: How many function arguments can have default values? [Solution]

Problem 2.3: What restrictions are involved when using default values? [Solution]

Problem 2.4: Does every variable in a function template have to be of the same type? [Solution]

Problem 2.5: Which data types will work with function templates? [Solution]