Overview

November 10, 2025

Description

Array searching in C refers to the process of locating a specific element within an array using techniques like linear or binary search. These methods help determine whether a value exists in the array and, if so, at which index. Array searching is a fundamental operation in C programming where you look for a specific value within an array. Arrays are fixed-size, contiguous memory structures that store elements of the same data type. Searching helps retrieve or verify the presence of a value efficiently.

Visual Aids

Algorithmic Steps

Declare array with fixed size.
An array is a collection of elements of the same type stored in contiguous memory locations.
Declare array with fixed size.
Declare array with fixed size.
An array is a collection of elements of the same type stored in contiguous memory locations.
Elements are accessed using indices, starting from 0.
An array is a collection of elements of the same type stored in contiguous memory locations.
Elements are accessed using indices, starting from 0.
An array is a collection of elements of the same type stored in contiguous memory locations.
Elements are accessed using indices, starting from 0.

Code Walkthrough

/* 
 * Module    : DSA With Embedded Use Cases
 * Author    : Codewafer.com
 * License   : © Codewafer.com, All rights reserved
 *             This code is proprietary to Codewafer.com
 */
 
 #include <stdio.h>
 #include <stdlib.h>

 #define SIZE 5

 int buffer[SIZE];
 int front = 0, rear = 0;

 void enqueue(int data) {
    if ((rear + 1) % SIZE == front) {
        printf("Buffer Full\n");
        return;
    }
    buffer[rear] = data;
    rear = (rear + 1) % SIZE;
 }
 
 int dequeue() {
    if (front == rear) {
       printf("Buffer Empty\n");
        return -1;
    }
    int data = buffer[front];
    front = (front + 1) % SIZE;
    return data;
 }

 void enqueue(int data) {
    if ((rear + 1) % SIZE == front) {
        printf("Buffer Full\n");
        return;
    }
    buffer[rear] = data;
    rear = (rear + 1) % SIZE;
 }
 
 int dequeue() {
    if (front == rear) {
       printf("Buffer Empty\n");
        return -1;
    }
    int data = buffer[front];
    front = (front + 1) % SIZE;
    return data;
 }
 int main() {
    
    return 0
 }

Optimizations

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Time & Space Trade offs

Version	Time	Space
Better	O(n^2)	O(n)
Optimized	O(n)	O(1)

Code Outcome

test cases : 1 2 3 4 5
Output : 5 4 3 2 1
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Real-Time Use Cases

Handle overflow conditions
Handle overflow conditions
Handle overflow conditions
Handle overflow conditions
Handle overflow conditions

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