Nested loops in C++ - Mini Project: Build & Apply

Nested loops

📖 Scenario: You are organizing a small theater event. You want to print the seating arrangement where rows are labeled 1 to 3 and seats in each row are labeled A to C.

🎯 Goal: Build a program that uses nested loops to print each seat label in the format RowNumberSeatLetter, for example, 1A, 1B, etc.

📋 What You'll Learn

Create two loops: an outer loop for rows and an inner loop for seats

Use the outer loop variable row for row numbers 1 to 3

Use the inner loop variable seat for seat letters 'A' to 'C'

Print each seat label on its own line in the format row followed by seat

💡 Why This Matters

🌍 Real World

Nested loops are useful when you need to work with grids, tables, or any two-dimensional data like seating charts or calendars.

💼 Career

Understanding nested loops is essential for programming tasks involving multiple levels of data, such as game development, UI layouts, and data processing.

1

Create the row numbers

Create an integer variable called row and write a for loop that counts from 1 to 3 inclusive.

C++

# Your code here
// Create a for loop with int row from 1 to 3

Need a hint?

Use a for loop starting at 1 and ending at 3 for the variable row.

2

Create the seat letters

Inside the for loop for row, create another for loop with a character variable called seat that counts from 'A' to 'C' inclusive.

C++

for (int row = 1; row <= 3; row++) {
    // Your code here
    // Create a for loop with char seat from 'A' to 'C'
}

Need a hint?

Use a nested for loop inside the row loop with seat from 'A' to 'C'.

3

Print each seat label

Inside the inner for loop, write a std::cout statement to print the row number followed by the seat letter, then a newline.

C++

for (int row = 1; row <= 3; row++) {
    for (char seat = 'A'; seat <= 'C'; seat++) {
        // Your code here
        // Print row and seat
    }
}

Need a hint?

Use std::cout to print row and seat together, then end the line.

4

Run and see the seating labels

Run the program and observe the output. It should print all seat labels from 1A to 3C, each on its own line.

C++

# Run the program to see the output
// Your code here

Need a hint?

The output should list all seats from 1A to 3C, each on a new line.