Why is Bubble Sort Considered a "Beginner-Friendly" Sorting Algorithm?

Bubble Sort is known as a "beginner-friendly" sorting algorithm due to its intuitive logic, simple code, and clear examples, which help beginners quickly grasp the core idea of sorting. **Definition**: It repeatedly compares adjacent elements and gradually "bubbles" larger elements to the end of the array, ultimately achieving order. The core is a "compare-swap" loop: the outer loop controls the number of rounds (at most n-1 rounds), and the inner loop traverses adjacent elements, comparing and swapping them. If no swaps occur in a round, the process terminates early. **Reasons for being beginner-friendly**: 1. **Intuitive Logic**: Similar to "adjusting a queue," it intuitively understands pairwise swaps and gradual ordering. 2. **Simple Code**: Implemented with nested loops, with a clear structure (outer loop for rounds, inner loop for comparison/swaps, optimized with early termination). 3. **Clear Examples**: The sorting process of [5, 3, 8, 4, 2] (where the largest number "bubbles up" to the end in each round) is easy to follow with step-by-step understanding. 4. **Understanding the Essence**: Helps grasp core sorting elements such as "order," "swaps," and "termination conditions." Despite its O(n²) time complexity and low efficiency, as a sorting启蒙 tool, it allows beginners to "first learn to walk" and lays the foundation for subsequent algorithms like Quick Sort. (Note: "启蒙" was translated as "enlightenment" here to maintain the technical educational context; "启蒙 tool" effectively conveys the purpose of foundational learning.) **Corrected translation (more precise term for 启蒙)**: Despite its O(n²) time complexity and low efficiency, as a **foundational sorting tool**, it enables beginners to "first learn to walk" and lays the groundwork for subsequent algorithms like Quick Sort. **Final translation**: Bubble Sort is known as a "beginner-friendly" sorting algorithm due to its intuitive logic, simple code, and clear examples, which help beginners quickly grasp the core idea of sorting. **Definition**: It repeatedly compares adjacent elements and gradually "bubbles" larger elements to the end of the array, ultimately achieving order. The core is a "compare-swap" loop: the outer loop controls the number of rounds (at most n-1 rounds), and the inner loop traverses adjacent elements, comparing and swapping them. If no swaps occur in a round, the process terminates early. **Reasons for being beginner-friendly**: 1. **Intuitive Logic**: Similar to "adjusting a queue," it intuitively understands pairwise swaps and gradual ordering. 2. **Simple Code**: Implemented with nested loops, with a clear structure (outer loop for rounds, inner loop for comparison/swaps, optimized with early termination). 3. **Clear Examples**: The sorting process of [5, 3, 8, 4, 2] (where the largest number "bubbles up" to the end in each round) is easy to follow with step-by-step understanding. 4. **Understanding the Essence**: Helps grasp core sorting elements such as "order," "swaps," and "termination conditions." Despite its O(n²) time complexity and low efficiency, as a **foundational sorting tool**, it enables beginners to "first learn to walk" and lays the groundwork for subsequent algorithms like Quick Sort.