Please fix errors and also need a flowchart for the following hamming code.

//hamming code

#include

#include

#include

struct node

{

int data;

struct node *link;

};

struct node *first=NULL, *last=NULL, *cur=NULL, *next, *move,*new;

//Creation of linked list for the given data

void create()

{

int i=1;

cur=(struct node*)malloc(sizeof(struct node);

l1:for(i=1;i<=7;i++)

{

printf("Enter the%d", i "bit data");

scanf("%d", &cur->data);

//Checking for binary data

if(cur->data!=0||cur->data!=1)

{

printf("Invalid data ");

goto l1;

}

//Insertion in first position

if(i==1)

{

cur->link=NULL;

first=cur;

last=cur;

next=cur;

}

//Insertion in the middle

elseif(i!=7)

{

next->link=cur;

next=cur;

}

//Insertion at the end

else

{

next->link=cur;

next=cur;

last=cur;

}

}

}

//To generate the parity bits

void cal()

{

int count=0,i,x,flag,a,b,c,d;

move=first;

//Parity bit at position 8. Calculation:

for(x=0;x<3;x++)

{

if(move->data==1)

count++;

move=move->link;

}

if(count%2==0)

flag=0;

else

flag=1;

//Assigns the parity bit

new=(struct node*)malloc(sizeof(struct node);

new->data=flag;

new->link=move->link;

move->link=new;

move=new;

move=move->link;

//Parity bit at position 4.Calculation:

count=0;

flag=0;

for(x=0;x<3;x++)

{

if(move->data==1)

count++;

if(x==0) a=move->data;

if(x==1) b=move->data;

if(x==2) c=move->data;

move=move->link;

}

if(count%2==0)

flag=0;

else

flag=1;

//Assigns the parity bit

new=(struct node*)malloc(sizeof(struct node);

new->data=flag;

new->link=move->link;

move->link=new;

move=new;

move=move->link;

d=move->data;

//Parity bit at position 2:Calculation

count=0;

flag=0;

count =(d+b+a);

if(count%2==0)

flag=0;

else

flag=1;

//Assigns the parity bit

new=(struct node*)malloc(sizeof(struct node);

new->data=flag;

new->link=NULL

move->link=new;

move=new;

//Parity bit at position1:Calculation

count=0;

flag=0;

count=(d+c+a);

if(count%2==0)

flag=0;

else

flag=1;

//Assigns the parity bit

new=(struct node*)malloc(sizeof(struct node);

new->data=flag;

new->link=NULL;

move->link=new;

move=new;

count=0;

flag=0;

}

//detection of errors in transmitted data

void transmit()

{

int i,x,a1,a2,a3,a4,b1,b2,b3,b4,c1,c2,c3,c4;

int count=0, f1=f2=f3=f4=0;

l2:for(i=1;i<=11;i++)

{

printf("Enter the %d",i "value");

scanf("%d",x);

if(x!=0||x!=1)

goto l2;

elseif(i==1) a1=x;

elseif(i==2) a2=x;

elseif(i==3) a3=x;

elseif(i==4) a4=x;

elseif(i==5) b1=x;

elseif(i==6) b2=x;

elseif(i==7) b3=x;

elseif(i==8) b4=x;

elseif(i==9) c1=x;

elseif(i==10) c2=x;

elseif(i==11) c3=x;

count=c3+c2+c1+b4;

if(count%2==0)

f1=0;

else

f1=1;

count=0;

count=a4+b1+b2+b3;

if(count%2==0)

f2=0;

else

f2=1;

count=0;

count=a2+a3+b2+b3;

if(count%2==0)

f3=0;

else

f3=1;

count=0;

count=a1+a3+b1+b3;

f(count%2==0)

f4=0;

else

f4=1;

count=0;

count=[(f4*1)+(f3*2)+(f2*4)+(f1*8)

if(count>11)

printf("Invalid data");

else

printf("Error present in position : %d",count );

}

void main()

{

int a;

//Creation of interacive menu

do

{

printf("Press 1 to determine Hamming Code generated");

printf("Press 2 to determine error in the given code");

printf("Press 3 to exit");

scanf("%d", a);

if(a==1)

{

create();

cal();

}

if(a==2)

transmit();

if(a==3)

exit(0);

}

while(a!=3);

//End of program

}