Question

What is a count-controlled loop?

Short answer

Answer: A count-controlled loop is a loop in programming that executes a block of code a specific number of times based on a counter, which is an integer variable incremented or decremented with each repetition of the loop. The main components of a count-controlled loop are: 1) Initialization of the counter variable, 2) A conditional expression to check if the counter value has reached the loop's stopping point, and 3) Updating the counter through increment or decrement after each iteration.

Step-by-step solution

Definition

A count-controlled loop is a loop that executes a block of code a specific number of times, based on a counter. The counter is an integer variable that is incremented or decremented with each repetition of the loop. When the counter reaches a certain value, the loop stops.

Structure of a Count-Controlled Loop

The structure of a count-controlled loop typically consists of three main components: 1. Initialization: The counter variable is initialized to a starting value. 2. Condition: A conditional expression checks if the counter value has reached the loop's stopping point. 3. Increment or Decrement: After each iteration, the counter is updated, either incremented or decremented.

Example in Python

Here's an example of a count-controlled loop using the "for" loop in Python: ``` for i in range(1, 6): print("Iteration", i) ``` In this example, the counter variable "i" is initialized with values from 1 to 5 using the "range" function. With each iteration of the loop, "i" is incremented by 1, and the loop repeats until "i" reaches 6.

Example in C++

Here's an example of a count-controlled loop using the "for" loop in C++: ``` #include int main() { for(int i = 1; i <= 5; i++) { std::cout << "Iteration " << i << std::endl; } return 0; } ``` In this example, the counter variable "i" is initialized to 1. The condition "i <= 5" checks if the counter has reached its stopping value. With each iteration, "i" is incremented by 1 using "i++", and the loop ends when "i" becomes greater than 5.