What is HttpURL connection ?

1049

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Lowest Common ancestor in a Binary Search Tree and Binary Tree.

931

---

Program to Find the second largest element in an array.

1184

---

Print Vertical traversal of a Binary Tree.

1015

---

Make a data structure and implement an algorithm to print all the files in a directory. (The root directory can have sub-directories too.)

1330

---

Is {a, n, d} a palindrome? If you are given a random string, is it a palindrome or not?

1128

---

Add a value x to array from index l to r where 0 <= l <= r <= n-1

1093

---

Implement a stack with push (), pop() and min() in O(1) time.

1107

---

Find the value of a specified element of the array arr[i] where 0 <= i <= n-1

980

---

Convert Binary tree to linked list.

1086

---

Convert a BST into a DLL and DLL to BST in place.

1111

---

worst case complexities of Quick sort and Merge sort.

1026

---

What do you mean by hashing?

1104

---

What is the definition of tree ?

1034

---

When can you say a graph to be a tree?

1083

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