Housing.com Interview Questions, Process, and Tips

The number of ways to reach the nth step using 1 or 2 steps at a time.

• Use dynamic programming to solve this problem

• Create an array to store the number of ways to reach each step

• Initialize the first two elements of the array as 1, since there is only one way to reach the first and second steps

• For each subsequent step, the number of ways to reach it is the sum of the number of ways to reach the previous two steps

• Return t

Find the maximum interval that intersects the maximum number of intervals.

• Sort the intervals based on their start times.

• Iterate through the sorted intervals and keep track of the current interval with the maximum number of intersections.

• Update the maximum interval whenever a new interval intersects more intervals than the current maximum interval.

Implement a ctlr+f (find) functionality in a file using a data structure.

• Create a data structure to store the file content, such as an array of strings.

• Implement a function that takes a search query and returns the matching lines from the file.

• Use string matching algorithms like Knuth-Morris-Pratt or Boyer-Moore for efficient searching.

• Consider optimizing the data structure for faster search operations, like using a tr

Merge two sorted arrays with empty spaces at the end in a single pass.

• Initialize two pointers at the end of each array

• Compare the elements at the pointers and place the larger element at the end of the merged array

• Decrement the pointer of the array from which the larger element was taken

• Repeat until all elements are merged

The code should traverse the binary tree level by level and update the next pointers accordingly.

• Use a queue to perform level order traversal of the binary tree.

• For each node, update its next pointer to point to the next node in the queue.

• If the current node is the last node in the level, update its next pointer to NULL.

The set of all nodes that can occur in any path from a source to a destination in both directed and undirected graphs.

• Perform a depth-first search (DFS) or breadth-first search (BFS) from the source node to the destination node.

• During the search, keep track of all visited nodes.

• Add each visited node to the set of nodes that can occur in any path.

• Repeat the search for both directed and undirected graphs.

• The resulting se...read more

The maximum number of bridges that can be connected between two sides of a river without crossing each other.

• This is a dynamic programming problem.

• Create a 2D array to store the maximum number of bridges that can be connected at each position.

• Initialize the first row and column of the array with 0.

• Iterate through the sides of the river and compare the labels.

• If the labels match, update the value in the array by adding ...read more