Factorial # program
Author
I''m trying to create a factorial number program where a user inputs a factorial number, like 9!, and the program outputs the value. Could someone please tell me how to code the for loop part?
Show us the code you''ve already written, and explain where you are stuck. Do you know how to code a for loop?
int n = 9; // Inputed value// Error checking goes hereint f = 1; // resultfor (int i=2; i <= n; i++) { f *= i;}// output f This is basically how you would expand it manually, so the algorithm should be obvious unless you are just learning.
Of course there are probably faster methods.
[EDIT] Oh, if this is homework, you should be beat over the head. That's meant as a joke of course...if this really is homework you should read the FAQ
[edited by - Thunder_Hawk on May 6, 2003 6:47:40 PM]
Author
Here is the code
#includeint main(){ cout<<"-------------------------Factorial Number Program--------------------"< cout<<"This is the factorial number program, enter a number \n to find it''s factorial value: "; int n; cin>>n; cout< int total; for (int i=n; i; i--) { total*=i; }cout< cout<<"The factorial value you entered is equal to \n "< return 0;}
The condition for your for statement should be i > 1. BTW, please modify your post with the source tags ([ source ]/*code goes here*/ [ /source ] minus the spaces), it was seriously misinterpreted.
if he uses:
for(int i = 0; i <= n; i++)
the result will be 0. It should be:
for(int i = 1; i <= n; i++)
instead.
for(int i = 0; i <= n; i++)
the result will be 0. It should be:
for(int i = 1; i <= n; i++)
instead.
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