Programming Unit 2: Repetition and Loops

Repetition in Programs

• Repetition (iteration) is fundamental in programming to execute a set of instructions multiple times based on a condition.
• Common use cases include counting, summing numbers, and iterating over arrays.

Counting Loops

• Counting loops run a set number of times and utilize a counter variable to track iterations.
• They are essential for performing repeated actions within a defined range.

The for Loop in C

• A for loop allows execution of code repetitively with initialization, condition, and increment all defined in one statement.
• Syntax breakdown:
  • initialization: Sets the loop control variable's starting value.
  • condition: Loop execution continues while this expression evaluates to true.
  • increment: Updates the loop control variable after each iteration.

Example of for Loop

• C program example to print numbers from 1 to 10 using a for loop:

  #include <stdio.h>
  void main() {
     for (int i = 1; i <= 10; i++) {
        printf("%d\n", i);
     }
  }
  

Essay Questions

• Open-ended format requiring in-depth responses, typically several paragraphs long.
• Aimed at assessing critical thinking, analytical skills, and detailed exploration of complex topics.
• Frequently initiates with commands like "Discuss," "Analyze," or "Evaluate," and requires structured arguments.
• Recommended to include a clear thesis, supporting evidence, and organized paragraphs.

Short Answer Questions

• Require concise responses, generally limited to one to a few sentences.
• Intended to quickly evaluate specific knowledge or understanding about a topic.
• Characteristics include direct questions often focusing on definitions or brief analyses.
• To effectively answer, read carefully, be precise, and incorporate relevant terminology and concepts.