Program to calculate the n factorial, C/C++ Programming

Assignment Help:

Debug the following program to calculate N!

#include

using namespace std;

main()

{

            int N, factorial=1;

            cout << "Enter a positive integer"

            cin >> N;

            for(int i=N; i>=1; factorial *= --i);

            cout << N<<"!="<

return 0;

}

What was wrong?

Set N='A'. What is the result? Does it make sense? Modify the program to make sure that the entered value is numeric. You can do so by using cin.fail() and cin.clear() (see the following for more information.

Also, modify the program such that it does not accept negative numbers and insists on getting a positive value for N. You can do so by using a while loop that keeps asking for a positive integer till a positive integer is entered.

Get your code to compute 1!,2!,5!, and 25!. Are you getting the correct answer for all of the entered values? If not, what went wrong? Would you be able to fix this by changing the variable type? Explain your answer.


Related Discussions:- Program to calculate the n factorial

201 it, overload assignment opertor to assign the data of one object to ant...

overload assignment opertor to assign the data of one object to anthor

When i throw this object, A: Depends. Might be "zero" Objects which are ...

A: Depends. Might be "zero" Objects which are thrown must have a publicly accessible copy-constructor. The compiler is permitted to generate code which copies the thrown object

Luminous jewels polishing necklace, 1.jewels can only be removed for polish...

1.jewels can only be removed for polishing from either end of the necklace. 2.cost of polishing=sitting number*colour value of jewels.

Using only arrays, write c program to do the following : -fill 2 dimensiona...

write c program to do the following : -fill 2 dimensional array (square matrix array with size=4). -ask the user to enter any integer number and add this number to the diagonals -o

Thermodynamics, want to solve the thermodynamics problems on c language

want to solve the thermodynamics problems on c language

Introduction to c, All languages are divided into six sections: - variables...

All languages are divided into six sections: - variables, I/O maths, conditional expressions, arrays, functions, subroutines and file handlers. Learning a software language is simi

File Input and Output, Given a bool variable isReadable write some statem...

Given a bool variable isReadable write some statements that assign true to isReadable if the file "topsecret" exists and can be read by the program and assigns false to isR

Keywords in cpp, Define Keywords in C++ K e y w o r d s: ...

Define Keywords in C++ K e y w o r d s: K e y w o rd s a r e t h e w o rd s a l r e a d y u s e d b y C + + i n i t s c

Decode, Problem Description Smugglers are becoming very smart day by day. N...

Problem Description Smugglers are becoming very smart day by day. Now they have developed a new technique of sending their messages from one smuggler to another. In their new techn

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd