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

Develop a complex app, Project Description: I would like to be building ...

Project Description: I would like to be building regarding a complex mobile application build as we require the signing of an NDA. My firm in based in Montreal Canada and we are

Minimum shelf, At a shop of marbles, packs of marbles are prepared. Packets...

At a shop of marbles, packs of marbles are prepared. Packets are named A, B, C, D, E …….. All packets are kept in a VERTICAL SHELF in random order. Any numbers of packets with thes

Gross pay, Develop a C++ program that uses a while to determine the gross p...

Develop a C++ program that uses a while to determine the gross pay (in Dollars) for each of several employees. The company pays “straight-time” for the first 40 hours worked by eac

What do you mean by a sequential access file, What do you mean by a sequent...

What do you mean by a sequential access file? - When writing programs which store and retrieve data in a file, it's possible to designate that file into various forms. - A s

Write a program that calculates circumference and area, Write a program cal...

Write a program called A1Q3, that reads it the radius of a circle as an integer and prints the circle's diameter, circumference and area.  Use a constant value for pi.  Do all calc

Array, Write a program to count the prime number in array

Write a program to count the prime number in array

Pointers, In this sub-task will you implement three functions for the final...

In this sub-task will you implement three functions for the final three function prototypes that will do exactly the same as the three functions that you have just written. This ti

C programming, Byteland county is very famous for luminous jewels. Luminous...

Byteland county is very famous for luminous jewels. Luminous jewels are used in making beautiful necklaces. A necklace consists of various luminous jewels of particular colour. Nec

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