Hiver Software Tester Interview Questions and Answers

Use Dijkstra's algorithm to find the shortest path between 2 vertices in a graph.

• Implement Dijkstra's algorithm to find the shortest path

• Create a priority queue to keep track of the vertices with the shortest distance

• Use a visited set to avoid revisiting vertices

• Stop when the destination vertex is reached

• Return the shortest path found

• Example: finding the shortest path between A and D in a graph with weighted edges: A->...read more

Find pairs in an array with sum equal to 0.

• Use a hash table to store the frequency of each element.

• Iterate through the array and for each element, check if its complement (negative value) exists in the hash table.

• If it exists, add the frequency of the complement to the count of pairs.

• Return the count of pairs.

• Example: array = [2, -2, 3, 0, -3], pairs = 2 (-2, 2 and -3, 3)

Learning programming languages is important for software engineers to effectively communicate with computers and develop software solutions.

• Programming languages are the foundation of software development.

• Learning multiple languages expands the range of problems a software engineer can solve.

• Different languages have different strengths and are suited for different tasks.

• Knowing multiple languages improves adaptability ...read more

Merge sort and Quick sort are sorting algorithms while Fibonacci is a sequence of numbers.

• Merge sort is a divide and conquer algorithm that divides the input array into two halves, sorts each half and then merges them.

• Quick sort is also a divide and conquer algorithm that selects a pivot element and partitions the array around the pivot.

• Fibonacci is a sequence of numbers where each number is the sum of the two precedin...read more