ArraysDS.java

/**
 * 
 * @author Kanahaiya Gupta
 *
 */
public class ArraysDS {

	// Complete the reverseArray function below.
	static int[] reverseArray(int[] a) {
		int len = a.length - 1;
		for (int i = 0; i <= len / 2; i++) {
			swap(a, i, len - i);
		}
		return a;
	}

	private static void swap(int[] a, int start, int end) {
		int temp = a[start];
		a[start] = a[end];
		a[end] = temp;
	}

}