How to write a C++ program (Turbo C++) to input a number and check whether that number entered by the user is a Spy Number or not.

We are gonna see how to write a C++ program (Turbo C++)  to input a number and check whether that number entered by the user is a Spy Number or not.

The following codes have been run and compiled in C++(Turbo C++).

The writing in the right-hand side of this "//" in the codes are called comments of the code. They are not a necessary part of the codes and can be omitted in the codes. They are just mentioned so as to tell you the use/purpose of writing the left-hand side of the "//" or the codes.   In some special cases depending upon the Fond & Size of the text on your device the comments may entered the right hand-side of the "//"(next line) and come in between the main codes. so as to, make it easier for you to understand/distinguish the comments from the main codes; we have written the main code and comments in different sizes.
Example: Main codes: "  #include<iostream.h>  "
                 Comments: "   //It is a header file and used to call the input-output classes(Pre-defined library in C++).  " .

The Variables are user initialized with zero, so that they won't store any garbage value and hamper the final output of the program.

For more accurate, users may replace "int" and "float" with "long" and "double" respectively.


Spy Number (Sum and Products of Digits are same) : A number is said to be a Spy number if the sum of all the digits is equal to the product of all digits.

The code are as follows:


#include<iostream.h>
#include<conio.h>
void main()
{
clrscr();
long num=0,n=0,d=0,sum=0,pro=1;
cout<<"Enter the number, which to be checked:"<<"\n";
cin>>num
n=num;
while(n!=0)
{
d=n%10;
sum=sum+d;
pro=pro*d;
n=n/10;
}
if(sum==pro)
cout<<"The number,("<<num<<") is a Spy Number."<<"\n";
else
cout<<"The number,("<<num<<") is not a Spy number."<<"\n";
getch();
}



Program:

Output:

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