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Program for AVERAGE and FACTORIAL

Please give the program code of this problems:

1. Enter a number (x) and get the average of all numbers from 1 to x.
2. Enter a number (x) and print the factorial of the number.
Program will look like this:
Enter value: 4
4 24
-Exit when the value entered is zero (0).
factorial = (n)*(n-1)*(n-2)
ex: 4!=4*3*2*1

* I dont have any clue on number 2 on how to do it.
*This two numbers need a loop (for).
* I tried number 1 but it's not right, anyway here is the program code i did:
Code:

```#include <stdio.h> #include <conio.h> int main() { int x,y; float z; clrscr(); printf ("\nEnter a number:\t"); scanf ("%d",&x); for (y=z;y>0;y--); z=(y+z)/(x); printf ("\n\nThe average of all numbers from 1 to %d is %f",x,z); getch(); return(0); }```

 virxen 16Sep2010 03:57

Re: Program for AVERAGE and FACTORIAL

exercise 1

Code:

```#include <stdio.h> int main(){     int x=0,y=0;     float z=0;//always initialize variables in the beginning     while (x<=0){//number must be greater or equal to 1         printf ("\nEnter a number:\t");         scanf ("%d",&x);getchar();//always after a scanf     }     for (y=1;y<=x;y++)         z+=y;//use the for loop from 1 to given number,store the total sum of these numbers in z     z/=x;//after exiting the loop divide result with total numbers     printf ("\n\nThe average of all numbers from 1 to %d is %f",x,z);     getchar();     return 0;```

Re: Program for AVERAGE and FACTORIAL

Quote:
 Originally Posted by virxen (Post 72801) exercise 1 Code: ```#include int main(){     int x=0,y=0;     float z=0;//always initialize variables in the beginning     while (x<=0){//number must be greater or equal to 1         printf ("\nEnter a number:\t");         scanf ("%d",&x);getchar();//always after a scanf     }     for (y=1;y<=x;y++)         z+=y;//use the for loop from 1 to given number,store the total sum of these numbers in z     z/=x;//after exiting the loop divide result with total numbers     printf ("\n\nThe average of all numbers from 1 to %d is %f",x,z);     getchar();     return 0;```
thanks

 virxen 16Sep2010 12:13

Re: Program for AVERAGE and FACTORIAL