DSA · Theory

Introduction

Theory

1/810

Introduction

Introduction is a DSA topic. In plain words you use it for marks stored somehow in a viva board. Don’t start with a slogan — start with that picture.

Smallest example: array vs list vs hash — one line each. Type it, run it, and say what you see. If you can do that from memory, you know Introduction.

From the example next to this theory — Introduction: dry-run [4, 1, 3].

Trap — reciting names with no cost. Fix that before you talk about advanced DSA.

Viva — what is Introduction? Then show array vs list vs hash — one line each. Then name the trap.

Exam tip

What is Introduction? Show this: array vs list vs hash — one line each. Trap: reciting names with no cost.

Example

# Introduction
data = [4, 1, 3]
print("start", data)
if data[0] > data[1]:
    data[0], data[1] = data[1], data[0]
print("after one step", data)

Introduction: dry-run [4, 1, 3]. Say the list after one step.

Short notes

DefIntroduction — marks stored somehow in a viva board.
Rulearray vs list vs hash — one line each
Trapreciting names with no cost
Usea viva board

DSA · Theory

Introduction

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Theory

1/810

Introduction

Introduction is a DSA topic. In plain words you use it for marks stored somehow in a viva board. Don’t start with a slogan — start with that picture.

Smallest example: array vs list vs hash — one line each. Type it, run it, and say what you see. If you can do that from memory, you know Introduction.

From the example next to this theory — Introduction: dry-run [4, 1, 3].

Trap — reciting names with no cost. Fix that before you talk about advanced DSA.

Viva — what is Introduction? Then show array vs list vs hash — one line each. Then name the trap.

Exam tip

What is Introduction? Show this: array vs list vs hash — one line each. Trap: reciting names with no cost.

Example

# Introduction
data = [4, 1, 3]
print("start", data)
if data[0] > data[1]:
    data[0], data[1] = data[1], data[0]
print("after one step", data)

Introduction: dry-run [4, 1, 3]. Say the list after one step.

Short notes

DefIntroduction — marks stored somehow in a viva board.
Rulearray vs list vs hash — one line each
Trapreciting names with no cost
Usea viva board

Introduction

Example

Short notes

Questions

Introduction

Example

Short notes

Questions