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DSA Introduction

What is Data Structure and Algorithm?​

A data structure is a specific way of organizing, storing, and accessing data.

An algorithm is a set of instructions that tell the computer how to do something. You can also say that a step-by-step solution to a problem is called an algorithm.

Why Learn DSA?​

Learning Data Structures and Algorithms (DSA) is crucial for efficient problem-solving and is highly valued by top tech companies like Google, Amazon, and Facebook.

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Task: Student Finder​

  1. Create an array with 5 student names.
  2. Create a function that takes two parameters: allStudents (array) and studentName (string). The function should iterate over all students and find the specific student name.

Identifying Data and Algorithm​

  • Data: Array of student names.
  • Algorithm: Function to iterate and find a specific student name.

Solution​

// Step 1: Create an array with 5 student names
const students = ["Ali", "Zeeshan", "Kamran", "Muzammil", "Acme"];

// Step 2: Create a function to find a student by name
function findStudent(allStudents, studentName) {
  for (let i = 0; i < allStudents.length; i++) {
    if (allStudents[i] === studentName) {
      return `${studentName} is found!`;
    }
  }
  return `${studentName} is not found.`;
}

// Test the function
console.log(findStudent(students, "Zeeshan")); // Output: Zeeshan is found!
console.log(findStudent(students, "Zaman")); // Output: Zaman is not found.