# C Program for Selection Sort

The selection sort algorithm sorts an array by repeatedly finding the minimum element (considering ascending order) from unsorted part and putting it at the beginning. The algorithm maintains two subarrays in a given array.

1) The subarray which is already sorted.
2) Remaining subarray which is unsorted.

In every iteration of selection sort, the minimum element (considering ascending order) from the unsorted subarray is picked and moved to the sorted subarray.

 `// C program for implementation of selection sort ` `#include ` ` `  `void` `swap(``int` `*xp, ``int` `*yp) ` `{ ` `    ``int` `temp = *xp; ` `    ``*xp = *yp; ` `    ``*yp = temp; ` `} ` ` `  `void` `selectionSort(``int` `arr[], ``int` `n) ` `{ ` `    ``int` `i, j, min_idx; ` ` `  `    ``// One by one move boundary of unsorted subarray ` `    ``for` `(i = 0; i < n-1; i++) ` `    ``{ ` `        ``// Find the minimum element in unsorted array ` `        ``min_idx = i; ` `        ``for` `(j = i+1; j < n; j++) ` `          ``if` `(arr[j] < arr[min_idx]) ` `            ``min_idx = j; ` ` `  `        ``// Swap the found minimum element with the first element ` `        ``swap(&arr[min_idx], &arr[i]); ` `    ``} ` `} ` ` `  `/* Function to print an array */` `void` `printArray(``int` `arr[], ``int` `size) ` `{ ` `    ``int` `i; ` `    ``for` `(i=0; i < size; i++) ` `        ``printf``(``"%d "``, arr[i]); ` `    ``printf``(``"\n"``); ` `} ` ` `  `// Driver program to test above functions ` `int` `main() ` `{ ` `    ``int` `arr[] = {64, 25, 12, 22, 11}; ` `    ``int` `n = ``sizeof``(arr)/``sizeof``(arr[0]); ` `    ``selectionSort(arr, n); ` `    ``printf``(``"Sorted array: \n"``); ` `    ``printArray(arr, n); ` `    ``return` `0; ` `} `

Please refer complete article on Selection Sort for more details!

My Personal Notes arrow_drop_up

Article Tags :

Be the First to upvote.

Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.