selection_sort.c: Add Selection Sort in C

This adds Selection Sort algorithm written in C

Closes #145

README.md

@@ -24,6 +24,7 @@ This repository contains examples of various algorithms written on different pro
 | [Heap Sort](https://en.wikipedia.org/wiki/Heapsort)                                             |                                       |                                       |                                       | [:octocat:](heap_sort/python)        |
 | [Maximum Subarray Problem](https://en.wikipedia.org/wiki/Maximum_subarray_problem)              |                                       |                                       |                                       | [:octocat:](/maximum_subarray/Python)|
 | [Knapsack Problem](https://en.wikipedia.org/wiki/Knapsack_problem)							  |	                                      |                                       |                                       | [:octocat:](knapsack_problem/Python)|
+| [Selecton Sort](https://en.wikipedia.org/wiki/Selection_sort)							          | [:octocat:](selection_sort/C)	                                      |                                       |                                       |                                        |
 
 
 ## Implemented Data Structures

selection_sort/C/selection_sort.c

@@ -0,0 +1,35 @@
+#include <stdio.h>	// for printf function
+
+void selection_sort(int[], int);
+void print_array(int[], int);
+
+int main() {
+	int arr[] = {4, 3, 42, 82, 5, 2, 33};
+	int n = sizeof(arr) / sizeof(arr[0]);
+	selection_sort(arr, n);
+	printf("Sorted array is: ");
+	print_array(arr, n);
+	printf("\n");
+	return 0;
+}
+
+/* Function to print array */
+void print_array(int arr[], int n) {
+	for (int i = 0; i < n; ++i) {
+		printf("%d ", arr[i]);
+	}
+}
+
+/* Selection Sort algorithm */
+void selection_sort(int arr[], int n) {
+	for (int i = 0; i < n - 1; ++i) {
+		int small = i;
+		for (int j = i + 1; j < n; ++j) {
+			if (arr[j] < arr[small])
+				small = j;
+		}
+		int temp = arr[i];
+		arr[i] = arr[small];
+		arr[small] = temp;
+	}
+}