DSA Practice Questions

Topics Covered : Core fundamentals, practicals, and concepts

50 Questions Available

Question 1

What does a leaf node in a tree represent?

A The root of the tree
B A node with maximum depth
C A node with no children
D A node with two children

Question 2

What is the height of a tree with a single node?

A 0
B 1
C -1
D Depends on implementation

Question 3

What is the time complexity of searching for an element in an unsorted array?

A O(1)
B O(log n)
C O(n)
D O(n^2)

Question 4

What is the time complexity to build a heap from an array of n elements?

A O(log n)
B O(n)
C O(n log n)
D O(n^2)

Question 5

Which algorithm is used to find the Minimum Spanning Tree?

A Kruskal's
B Bellman-Ford
C Floyd-Warshall
D Dijkstra's
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