Program to find any number inside another number in C.

Code Box
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/*Program to find given numbers presence in another number in C

or 

Program to find any number inside another number in C.
 */

#include<stdio.h>
#include<conio.h>

void main()
{
int num,num1,nf,rem,newnum,len,i,c;
clrscr();

len=0;
newnum=0;
c=0; //Counter Variable

printf("\n\tNumber Finder");
printf("\n-------------------------");
printf("\nEnter a number:");
scanf("%d",&num);

/*Single Digit number */
printf("\nEnter number to find:");
scanf("%d",&nf);


num1=num; //to save actual number


/*Number Reverse */
while(num1>=1)
{
rem=num1%10;
num1=num1/10;
newnum=newnum*10+rem; 
len++;
}


for(i=1;i<=len;i++)
{
rem=newnum%10;
newnum=newnum/10;

if(rem==nf)
{
printf("\nNumber %d is present in %d at position %d.",nf,num,i);
}
else
{
c++; //Counter Variable
}
}


if(c==len)  //Checking for absence 
{
printf("\nNumber Not Found!!!");
}

getch();

}