Quiz: Conditional Statements and Loops

Introduction

Quiz: Conditional Statements and Loops checks how well you can apply if-else ladder for grade ranges and switch without break behavior (and related ideas) in C. Try each prompt in a scratch file before moving on.

Understanding the topic

Challenge 1 In your own words — or with a tiny program — show that you understand: if-else ladder for grade ranges.

Challenge 2 In your own words — or with a tiny program — show that you understand: switch without break behavior.

Challenge 3 In your own words — or with a tiny program — show that you understand: while vs do-while difference.

Challenge 4 In your own words — or with a tiny program — show that you understand: Nested loop output pattern.

• Challenge 1 — In your own words — or with a tiny program — show that you understand: if-else ladder for grade ranges.
• Challenge 2 — In your own words — or with a tiny program — show that you understand: switch without break behavior.
• Challenge 3 — In your own words — or with a tiny program — show that you understand: while vs do-while difference.
• Challenge 4 — In your own words — or with a tiny program — show that you understand: Nested loop output pattern.

Step-by-step explanation

1. Challenge 1 — In your own words — or with a tiny program — show that you understand: if-else ladder for grade ranges.
2. Challenge 2 — In your own words — or with a tiny program — show that you understand: switch without break behavior.
3. Challenge 3 — In your own words — or with a tiny program — show that you understand: while vs do-while difference.
4. Challenge 4 — In your own words — or with a tiny program — show that you understand: Nested loop output pattern.

Execution workflow

Best practices

• Enable warnings: gcc -Wall -Wextra -std=c11 source.c -o app
• Give every variable a defined value before it is read.
• Stay inside array bounds — C will not stop you from over-running a buffer.

Common mistakes

• Reading uninitialized storage — behavior is undefined.
• Dismissing compiler warnings instead of fixing root causes.
• Ignoring NULL returns from malloc, fopen, and similar APIs.

Hands-on exercise

Practice problems:

• Build or explain: if-else ladder for grade ranges
• Build or explain: switch without break behavior
• Build or explain: while vs do-while difference
• Build or explain: Nested loop output pattern

Summary

Quiz: Conditional Statements and Loops in C — Self-check on control flow.