Data Structures Interview Questions For Freshers

What is a binary tree?

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Explain the concept of hash tables.

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What is the time complexity of searching in a binary search tree?

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What is the difference between depth-first search (DFS) and breadth-first search (BFS)?

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What is the time complexity of adding an element to a heap?

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What is a priority queue?

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Explain the concept of a graph.

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What is the time complexity of sorting a linked list using merge sort?

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What is a trie?

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What is the time complexity of searching in a trie?

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What is a skip list?

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What is the time complexity of searching in a skip list?

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What is a data structure?

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What is a queue?

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What is a stack?

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What is the time complexity of inserting an element at the beginning of a singly linked list?

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What is the time complexity of accessing an element in an array?

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What is the difference between an array and a linked list?

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Name some common data structures.

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Data Structures Intermediate Interview Questions

What is the time complexity of searching in a hash trie?

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What is a hash trie?

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What is the time complexity of performing range queries in a segment tree?

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Explain the concept of a segment tree.

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What is the time complexity of union and find operations in the disjoint-set data structure?

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What is a disjoint-set data structure?

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What is the difference between a queue and a dequeue?

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What is the time complexity of finding the maximum element in a binary search tree?

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What is the time complexity of searching in a suffix tree?

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What is a suffix tree?

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What is the time complexity of searching in a skip list?

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What is Dijkstra's algorithm used for?

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What is the difference between a graph and a tree?

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What is a B-tree?

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Explain the concept of a red-black tree.

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What is an AVL tree?

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What is the time complexity of removing an element from a heap?

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What is a self-balancing binary search tree?

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Explain the concept of a circular buffer.

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Data Structures Interview Questions For Experienced

What is the time complexity of searching in a splay tree?

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What is the time complexity of searching in a radix tree?

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What is a radix tree?

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Explain the concept of a quadtree.

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What is a bloom filter?

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What is a treap?

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What is a persistent data structure?

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Explain the concept of a wavelet tree.

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What is an order statistic tree?

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What is a rope data structure?

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What is a splay tree?

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Explain the concept of a ternary search tree.

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What is an interval tree?

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Explain the concept of a fusion tree.

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What is a k-d tree?

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What is the time complexity of searching in a k-d tree?

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What is Cartesian tree?

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Explain the concept of a link-cut tree.

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What is a compressed trie?

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What is the time complexity of searching in a compressed trie?

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What is a rope data structure?

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Explain the concept of a fusion tree.

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What is a k-d tree?

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What is the time complexity of searching in a k-d tree?

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What is Cartesian tree?

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Explain the concept of a link-cut tree.

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What is a compressed trie?

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What is the time complexity of searching in a compressed trie?

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