Software Engineer

Step 1: Initialize two pointers, left and right, to the first and last indices of the elevation map.
Step 2: Initialize two variables, left_max and right_max, to 0. These variables will track the maximum heights encountered from the left and right directions, respectively.
Step 3: Initialize a variable, water_trapped, to 0. This variable will store the total amount of water trapped.
Step 4: While the left pointer is less than or equal to the right pointer, do steps 5-8.
Step 5: If the height at the left pointer is less than or equal to the height at the right pointer, do steps 6-7; otherwise, do steps 7-8.
Step 6: If the height at the left pointer is greater than or equal to left_max, update left_max to the current height. Otherwise, calculate the water trapped by subtracting the height at the left pointer from left_max and add it to water_trapped. Increment the left pointer.
Step 7: If the height at the right pointer is greater than or equal to right_max, update right_max to the current height.
Otherwise, calculate the water trapped by subtracting the height at the right pointer from right_max and add it to water_trapped.
Decrement the right pointer.
Step 8: After the while loop, return the value of water_trapped.

Step 1: If the root is None or it is a leaf node (both left and right children are None), return the root as it is already flattened.
Step 2: Recursively flatten the left subtree by calling the flattenTree function on the left child of the root.
Step 3: Recursively flatten the right subtree by calling the flattenTree function on the right child of the root.
Step 4: If the flattened left subtree exists (left child is not None), do the following:
a) Store the original right child of the root in a temporary variable, right_child.
b) Set the left child of the root as None.
c) Set the right child of the root to the flattened left subtree.
d) Find the rightmost node in the flattened left subtree.
e) Set the right child of the rightmost node to the temporary variable right_child.
Step 5: Return the root of the flattened binary tree.

Tip 1: Study about Breadth First Search and Depth First Search.
Tip 2: Hear the question carefully.

Tip 1: Study recursion in detail
Tip 2: Answer confidently

Tip 1: Study about the Java Virtual Machine.
Tip 2: Hear the question carefully.

Tip 1: Study about the Java Virtual Machine
Tip 2: Hear the question carefully

Tip 1: Read the operating system-related questions available on the net.
Tip 2: Answer confidently.

Tip 1: Study threads in the operating system.
Tip 2: Hear the question carefully.

Tip 1: Prepare your introduction
Tip 2: Speak in good English

Tip 1: Answer confidently
Tip 2: Don't hide anything

Tip 1: Better to tell the weakness that does not hinder the growth of the company
Tip 2: Hear the question carefully

Tip 1: Tell the truth, even if you have an offer
Tip 2: Answer confidently