Problems # Title Likes 1 Connect nodes at the same level in a binary tree 0 2 Level order, breadth first search or zig-zag traversal of a binary tree 0 3 Delete all the nodes from a binary tree 0 4 Print nodes at k level from the root in a binary tree 0 5 Find the first common ancestor of two nodes in a binary tree 0 6 Find the in-order successor of a given node in a binary search tree 0 7 Create a bar chart from json 0 8 Determine if a binary tree is a binary search tree 0 9 Given the binary tree create linked lists of the nodes at the same level 0 10 Create a minimal height binary search tree from given sorted array of unique integers 0 11 Determine if a binary tree is balanced 0 12 Binary tree traversal 0 13 Create a binary search tree in javascript 0 Connect nodes at the same level in a binary tree Level order, breadth first search or zig-zag traversal of a binary tree Delete all the nodes from a binary tree Print nodes at k level from the root in a binary tree Find the first common ancestor of two nodes in a binary tree Find the in-order successor of a given node in a binary search tree Create a bar chart from json Determine if a binary tree is a binary search tree Given the binary tree create linked lists of the nodes at the same level Create a minimal height binary search tree from given sorted array of unique integers Determine if a binary tree is balanced Binary tree traversal Create a binary search tree in javascript 1