Merge pull request ephremdeme#177 from ishaangupta-YB/patch-2

Create Two Pointer Algorithm

Author: ephremdeme

Algorithms/Two Pointer Algorithm

@@ -0,0 +1,32 @@
+import java.util.Arrays;
+
+public class TwoPointerAlgo {
+
+public static void main(String[] args) {
+int arr[] = {0,-1,3,-4,5,-3,4,1};
+
+int n = arr.length;
+int x=0,k=0,j=n-1;
+
+Arrays.sort(arr);	//Sorting is necessary
+
+for(int i=0;i<n-2;i++) {
+k=i+1;
+x=-arr[i];
+j=n-1;
+
+while(k<j) {
+if(arr[k] + arr[j]<x) {
+k++;
+}else if(arr[k] +arr[j] > x) {
+j--;
+}else {
+System.out.println(arr[i] + " "+ arr[k]+" "+arr[j]);
+k++;
+j--;
+}
+}
+}
+}
+
+}