bitstuff

#include<stdio.h>
#include<string.h>
void main()
{
int a[70],i,j,n,count=0,l;
char b[20],c[20];
printf("enter bit length to be stuffed:");
scanf("%d",&n);
printf("enter string");
for(i=0;i<n;i++)
{
scanf("%d",&a[i]);
}
i=0;
for(j=0;j<n;j++)
{
if(a[j]==1)
count++;
if(count==5)
{
b[i++]=a[j]+'0';
b[i++]=0+'0';
count=0;
}
else
{
b[i++]=a[j]+'0';
}
}
printf("\n stuffed string:%s",b);
j=0;
n=strlen(b);
count=0;
for(i=0;i<n;i++)
{
if(b[i]=='1')
{
count++;
}
if(count==5)
{
c[j++]=b[i];
i=i+1;
count=0;
}
else
c[j++]=b[i];
}
c[j]='\0';
printf("\n destuffed string %s",c);
}

OUTPUT

[12311A1256@itlab cn]$ cc bitstuffing.c
[12311A1256@itlab cn]$ ./a.out
enter bit length to be stuffed:10
enter string1
0
0
0
1
1
0
1
0
1

 stuffed string:10001101010
 destuffed string 1000110101