Given a Binary Tree with distinct values, the task is to print the first smallest root to leaf path. We basically need to print the leftmost root to leaf path that has the minimum number of nodes.
Input: 1 / \ 2 3 / / \ 4 5 7 / \ \ 10 11 8 Output: 1 3 5 Input: 1 / \ 2 3 / / \ 40 5 7 \ 8 Output: 1 2 40
Approach: The idea is to use a queue to perform level order traversal, a map parent to store the nodes that will be present in the shortest path. Using level order traversal, we find the leftmost leaf. Once we find the leftmost leaf, we print path using the map.
Below is the implementation of the above approach:
1 3 5
- Find the maximum sum leaf to root path in a Binary Tree
- Print the longest leaf to leaf path in a Binary tree
- Given a binary tree, print all root-to-leaf paths
- Shortest root to leaf path sum equal to a given number
- Given a binary tree, print out all of its root-to-leaf paths one per line.
- Print path from root to a given node in a binary tree
- Print path from root to all nodes in a Complete Binary Tree
- GCD from root to leaf path in an N-ary tree
- Root to leaf paths having equal lengths in a Binary Tree
- Find if there is a pair in root to a leaf path with sum equals to root's data
- Sort the path from root to a given node in a Binary Tree
- Shortest path between two nodes in array like representation of binary tree
- Print all leaf nodes of a Binary Tree from left to right
- Print Sum and Product of all Non-Leaf nodes in Binary Tree
- Print all leaf nodes of a binary tree from right to left
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Improved By : rituraj_jain