Hamming Code in networking

#include<stdio.h>
#include<stdlib.h>
#include<math.h>
int main()
{
int n,i,r=1,k,p,t;
printf("Enter the number of bits in data : ");
scanf("%d",&k);
while(1)
{
 if(pow(2,r)>=k+r+1)
 {
 p=pow(2,r);
 t=k+r+1;
 printf("%d >= %d T\n",p,t);
 break;
 }
 else
 {
 p=pow(2,r);
 t=k+r+1;
 printf("%d >= %d F\n",p,t);
 ++r;
 }
}
printf("No of reductant bits are : %d\n",r);
}