Loop execution flow in C++ - Mini Project: Build & Apply

Loop Execution Flow in C++

📖 Scenario: Imagine you are organizing a small event and need to count how many guests have arrived. You want to use a loop to count from 1 to 5, representing each guest arriving one by one.

🎯 Goal: Build a simple C++ program that uses a for loop to count guests from 1 to 5 and print each guest number as they arrive.

📋 What You'll Learn

Create an integer variable called guestCount initialized to 0.

Create an integer variable called maxGuests and set it to 5.

Use a for loop with a loop variable i that runs from 1 to maxGuests.

Inside the loop, update guestCount to the current value of i.

Print the message "Guest number: " followed by the current guestCount inside the loop.

💡 Why This Matters

🌍 Real World

Counting guests or items as they arrive or are processed is common in event planning, inventory management, and many other real-life tasks.

💼 Career

Understanding loop execution flow is essential for programming jobs where you automate repetitive tasks, process data, or control sequences of actions.

1

Create the initial variable guestCount

Create an integer variable called guestCount and set it to 0.

C++

# Create an integer variable called guestCount and set it to 0
// Your code here

Need a hint?

Use int guestCount = 0; to create the variable.

2

Add the variable maxGuests

Create an integer variable called maxGuests and set it to 5.

C++

int guestCount = 0;
// Create an integer variable called maxGuests and set it to 5
// Your code here

Need a hint?

Use int maxGuests = 5; to create the variable.

3

Write a for loop to count guests

Write a for loop with the loop variable i that runs from 1 to maxGuests inclusive. Inside the loop, set guestCount to i.

C++

int guestCount = 0;
int maxGuests = 5;
// Write a for loop with variable i from 1 to maxGuests
// Inside the loop, set guestCount to i
// Your code here

Need a hint?

Use for (int i = 1; i <= maxGuests; i++) and inside the loop write guestCount = i;.

4

Print the guest count inside the loop

Inside the for loop, add a std::cout statement to print the message "Guest number: " followed by the current guestCount and a newline.

C++

int guestCount = 0;
int maxGuests = 5;
for (int i = 1; i <= maxGuests; i++) {
    guestCount = i;
    // Print "Guest number: " and guestCount
    // Your code here
}

Need a hint?

Use std::cout << "Guest number: " << guestCount << std::endl; inside the loop.