Binary Search Tree in C

Introduction

In this tutorial, we will learn about Binary Search Tree in C. This is a crucial concept widely used in software development.

Implementation Example

Here is the complete source code to demonstrate how this works in practice:

#include <stdio.h>
#include <stdlib.h>

struct Node {
    int data;
    struct Node *left, *right;
};

struct Node* createNode(int value) {
    struct Node* newNode = (struct Node*)malloc(sizeof(struct Node));
    newNode->data = value;
    newNode->left = newNode->right = NULL;
    return newNode;
}

struct Node* insert(struct Node* root, int data) {
    if (root == NULL) return createNode(data);
    if (data < root->data)
        root->left = insert(root->left, data);
    else if (data > root->data)
        root->right = insert(root->right, data);
    return root;
}

void inorder(struct Node* root) {
    if (root != NULL) {
        inorder(root->left);
        printf("%d ", root->data);
        inorder(root->right);
    }
}

int main() {
    struct Node* root = NULL;
    root = insert(root, 50);
    insert(root, 30);
    insert(root, 20);
    insert(root, 40);
    insert(root, 70);
    
    printf("Inorder traversal: ");
    inorder(root);
    return 0;
}

Code Explanation

The code above illustrates the core logic required to implement Binary Search Tree in C. By breaking it down, we can observe the following:

• Initialization: Proper setup of the variables and structures.
• Processing: Applying the core algorithm to achieve the result.
• Output: Printing the final results clearly.

Conclusion

Understanding Binary Search Tree in C is critical for mastering the fundamentals of programming. Keep practicing to solidify these concepts!