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FACTORIAL C CODE


  Q1Write a C program to print Factorial of a number as an output?


 Using Goto:


 #include<conio.h>                                
 #include<stdio.h>                                 
 void main()                                           
 {                                                           
 int n;                                                     
 int s=1;                                                 
 clrscr();                                                 
 scanf("%d",&n);                                    
 printf("\nthe number is=%d",n);            
 again :                                                  
 if(n>1)                                                   
 {                                                            
 s=s*n;                                                   
 n=n-1;                                                   
 goto again;                                            
 }                                                             
 printf("\nfactorial of no.- %d=\t%d",n,s);
 getch();                                                  
 }                                                             

 Using For loop:


 #include<conio.h>                                 
 #include<stdio.h>                                  
 void main()                                            
 {                                                             
 //factorial number                                  
 int n,i;                                                    
 int f=1;                                                   
 clrscr();                                                  
 scanf("%d",&n);                                     
 printf("\n\nthe number is=%d",n);          
 for(i=1;i<=n;i++)                                     
 {                                                               
 f=f*i;                                                        
 }                                                              
 printf("\n\nfactorial of no. %d = %d",n,f);
 getch();                                                   
 }                                                              

***********************************************************************************

Sample Output:








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