In every c++ program

Question

there must be a function named mani
there must be at least two declare variable
variables names should be either x or y
each variable must have its date type

Answer 1

first thing its main not "Mani";
second its data type not "Date Type";
And yeah whatever you said is not necessary cause a simple program that just outputs Hello world does not require any variable declaration and yeah the permutation to chose a variable is in billions so that's not necessarily x or y .
But I can't understand what are you trying to say through this .

Answer 2

The answer is
there must be a function named main
each variable must have its data type

Answer 3

Please type in a code to print to the screen the value of x divided by y.