Sort 2D Array in C: Top Methods

There are several methods to sort a two-dimensional array in the C language.

1. Bubble sort: By comparing adjacent elements, gradually move the largest (or smallest) element to the end (or beginning) of the array, repeating this process until the entire array is sorted.
2. Selection sort involves traversing through the array each time to select the smallest (or largest) element, placing it at the beginning (or end) of the array, and then repeating this process with the remaining unsorted portion until the entire array is sorted.
3. Insertion sort: Viewing an array as two parts – sorted and unsorted, consecutively insert elements from the unsorted part into the correct position in the sorted part, until the entire array is sorted.
4. Quick Sort: Choose a pivot value, place elements that are smaller than the pivot on the left side of the pivot, and place elements larger than the pivot on the right side. Then recursively repeat this process on the left and right parts until the entire array is sorted.
5. Merge sort: Divide the array into two subarrays, sort each of these subarrays separately, then merge the two sorted subarrays to obtain a single sorted array. Repeat this process until the entire array is sorted.

The above are several common methods for sorting two-dimensional arrays. Choose the appropriate sorting algorithm based on specific needs and array characteristics.