initialize

1 files changed, 60 insertions, 0 deletions

diff --git a/c/dataStructure/sorting/insertSort.c b/c/dataStructure/sorting/insertSort.c
new file mode 100755
index 0000000..741f295
--- /dev/null
+++ b/c/dataStructure/sorting/insertSort.c
@@ -0,0 +1,60 @@
+#include<stdio.h>
+#include<stdlib.h>
+#include<time.h>
+
+#define SIZE 10
+
+void swap(int * a, int * b)
+{
+	int tmp = *a;
+	*a = *b;
+	*b = tmp;
+}
+
+void generateRandom(int * arr, int n)
+{
+	time_t sr;
+	srand(*&sr);
+
+	for(int i = 0; i < n; i++)
+		arr[i] = rand() % 100;
+}
+
+void print(int * arr, int n)
+{
+	for(int i = 0; i < n; i++)
+		printf("%3d",*(arr+i));
+	putchar('\n');
+}
+
+void insertSort(int * arr, int n)
+{
+	int key, i, j;
+	
+	for (i = 1; i < n; i++)
+	{
+		key = arr[i];
+		j = i - 1;
+
+		while (j >= 0 && key < arr[j])
+		{
+			arr[j+1] = arr[j];
+			j--;
+		}
+		arr[j+1] = key;
+	}
+}
+
+int main(void)
+{
+	int arr[SIZE];
+	generateRandom(arr,SIZE);
+
+	print(arr,SIZE);
+
+	insertSort(arr,SIZE);
+
+	print(arr,SIZE);
+
+	return 0;
+}