Oyo Rooms Interview Questions and Answers for Freshers

The left view of a binary tree displays the nodes visible when viewed from the left side.

• Use a level order traversal (BFS) to explore the tree level by level.

• Keep track of the first node encountered at each level.

• For example, in the tree: 1 / \ 2 3 / 4, the left view is [1, 2, 4].

• A recursive DFS approach can also be used, maintaining the maximum depth seen so far.

BPO stands for Business Process Outsourcing. It involves contracting non-core business functions to a third-party provider.

• BPO services include customer support, technical support, data entry, and back-office operations.

• Companies outsource these functions to reduce costs and focus on their core competencies.

• BPO providers are typically located in countries with lower labor costs, such as India and the Philippines.

• B...read more

Yes, I have deep knowledge of cooking different cuisines.

• I have experience cooking various cuisines such as Italian, Mexican, Chinese, and Indian.

• I am familiar with different cooking techniques and ingredients used in each cuisine.

• I enjoy experimenting with fusion dishes that combine elements from different cuisines.

• I keep up with current food trends and am always learning new recipes and techniques.

• I have receive...read more

A hyperlink is a clickable link that takes you to another webpage or a specific location on the same webpage.

• Hyperlinks are commonly used in websites to navigate between pages.

• They can also be used to link to external resources such as documents or videos.

• Hyperlinks are created using HTML code and can be styled to appear as text or images.

• They can be opened in the same window or a new window or tab.

• Hyperlinks can ...read more

Kolkata is a vibrant city located in eastern India, known for its rich history, culture, and cuisine.

• Kolkata was the capital of British India until 1911

• It is home to iconic landmarks such as Victoria Memorial and Howrah Bridge

• The city is famous for its street food, including puchkas and jhal muri

• Kolkata is also known for its literary and artistic heritage, with notable figures such as Rabindranath Tagore and Satya...read more

Validate if a binary tree is a Binary Search Tree (BST) or not.

• Check if the left subtree of a node contains only nodes with data less than the node's data.

• Check if the right subtree of a node contains only nodes with data greater than the node's data.

• Recursively check if both the left and right subtrees are also binary search trees.