WAP to demonstrate Parity bit for finding error

#include<stdio.h>

#include<conio.h>

int main()

{

    int a,i,j,n,ascii[20],rem=0,var,count=0,numzeros=0;

    int sum=0,x[20],z[20];

    char str[20];

    printf("enter the word length\n");

    scanf("%d",&n);

    printf("enter the word : \t");

    for(i=0;i<=n;i++)

    {

    scanf("%c",&str[i]);

    }

     for(i=1;i<=n;i++)

    {

    j=str[i];

    ascii[i]=j;   

    }

    for(i=1;i<=n;i++)

    {

                     var=0;

                     sum=0;

                     a=ascii[i];

                     count=0;

                     while(a>1) 

                     {                  

                     rem=a%2;

                     z[var]=rem;

                     if(rem==1)

                     {

                     count++;

                     }

                   

                     a=a/2;

                     var++;

                     }

                     z[var]=a;

                     if(var<7)

                     {

                        numzeros=7-var;

                        for(j=0;j<numzeros;j++)

                        {

                                            var++;

                                            z[var]=0;                                       

                        }    

                     }

                    

                     for(j=var;j>=0;j--)

                     {

                                        printf("%d",z[j]);

                     }

                      if(a==1)

                     {

                     count++;

                     }

                     if(count%2==0)

                     {

                                   printf("\t0\t");

                     }

                     else

                     {

                     printf("\t1\t");

                     }                 

    }

                    

    getch();

}