#include<stdio.h>
void main()
{
int x,y,z,sum=0,h=1,t;
int factorial (int g, int k);
printf("enter a value to check whether it is strong 
number...\n");
scanf("%d",&x);
printf("\nthe entered value is:::: %d \n ",x);
t=x;
while(x>0)
{
y=x%10;
x=x/10;
z=factorial(y,h);
sum=sum+z;
}	
if(sum==t)
{
printf("\n %d is a strong no:\n",t);
}
else
{
printf("\n %d is not a strong  no:\n",t);
}
}	
int factorial (int g, int k)
{
while(g>=1)
{
	k=k*g;
	g=g-1;
}
return k;
}

void main()  

 { 
 int n,t,f=1,s=0,num;
 printf("enter the num \t:");
 scanf("%d",&n);
 num=n;
 while(num)
 {
	 t=num%10;
	 f=1;
	 while(t)
	 {
		 f=f*t;
		 t--;
	 }
	 s=s+f;
	 num=num/10;
 }
if(n==s)
printf("%d is a strong number",n);
else
printf("%d is not a strong number",n);
}

#include<stdio.h>
int main()
{
  int n = 145;
  int i,sum=0,temp;
  temp = n;
  while(n>1)
  {
    n=n%10;
    sum = sum+fact(n);
    printf("%d",sum);
  }
  if(temp == sum)    
    printf("Given no is STRONG number\n");
}
int fact(int a)
{
  int i=1,fact=1;
  fact = i*fact(--i);
  return fact;
}

int fact(int f)
{
if(f==1||f==0)
   return 1;
else
    return(f*fact(f-1));
}
main()
{
   int n,i,j,s=0;
    printf("enter the number");
    scanf("%d",&n);
    i=n;
    while(n!=0)
    {
      j=n%10;
      s=s+fact(j);
      n=n/10;
     }
     if(i==s)
            printf("strong number");
     else
            printf("not a strong number");
}