What is a function? What are function parameter$($s$)?$How do we call functions from the main function?What is the return type of a function?What is an array? What is a multidimensional array? What is an array index?What are the indices of multidimensional arrays? What are iteration statements $($loop structure$)?$What is a nested loop?What are nested loop indices? What is a variable$($s$)?$How can we initialize variables?How can we solve basic math operations without using a library?How we can define variables in function?

In terms Of c$++$