Answer Posted / vadim

print tree by levels not recursive in C language


typedef struct treeNode{
int data;
struct treeNode* left;
struct treeNode* right;
} TreeNode;


typedef struct tree{
TreeNode* root;
} Tree;


typedef struct listNode{
TreeNode* dataPtr;
struct listNode* next;
struct listNode* prev;
} ListNode;

typedef struct list
{
ListNode* head;
ListNode* tail;
} List;



//main function : you still will need to write all the mini
functions that i have used here ...


void printByLevels(Tree tr)
{
TreeNode *curr;
List *lst;

lst=(List *)malloc(sizeof(List));
makeEmptyList(lst);
insertDataToStartDList(lst,tr.root);


while(isEmptyList(lst)!=TRUE)
{
curr=lst->tail->dataPtr;

if (curr->left!=NULL)
insertDataToStartDList(lst,curr->left);

if(curr->right!=NULL)
insertDataToStartDList(lst,curr->right);

printf("%d ",curr->data);
RemoveLastNodeInList(lst);

}//while

}

Why do we use int main?

1107

---

How to write a code for implementing my own printf() and scanf().... Please hep me in this... I need a guidance... Can you give an coding for c... Please also explain about the header files used other than #include...

5486

---

What are nested functions in c?

1034

---

What are types of structure?

1130

---

count = 0; for (i = 1;i < = 10; i++);count = count + i; Value of count after execution of the above statements will be a) 0 b) 11 c) 55 d) array

1098

---

Explain what is the benefit of using #define to declare a constant?

1199

---

Explain the use of fflush() function?

1090

---

What is a shell structure examples?

1111

---

What is the size of a union variable?

1058

---

Is c compiled or interpreted?

1202

---

Why #include is used in c language?

1059

---

Differentiate Source Codes from Object Codes

1594

---

What is the meaning of && in c?

1028

---

Explain pointers in c programming?

1123

---

Explain how do you use a pointer to a function?

1118

---