Brillio Salesforce Developer Interview Questions and Answers

Q1. Just basic questions like Method overloading, riding Abstract and interface Use of static Etc..
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Basic Java programs related to string and array manipulation

Q1. Jus basic questions related to Work culture and privacy
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Round duration - 90 minutes
Round difficulty - Medium

We were supposed to give test in any time between 3 PM to 9 PM.

Q1. 
Total Unique Paths Problem Statement
You are located at point ‘A’, the top-left corner of an M x N matrix, and your target is point ‘B’, the bottom-right corner of the same matrix. Your task is to calcula...read more
Ans. 
The problem involves finding the total number of unique paths from the top-left to bottom-right cell of a matrix by moving only right or down.
• Use dynamic programming to solve the problem efficiently.

• Create a 2D array to store the number of unique paths at each cell.

• Initialize the first row and first column with 1 as there is only one way to reach them.

• For each cell (i, j), the number of unique paths is the sum of paths...read more
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Q2. 
Subtree Node Count Problem
We are provided with a tree containing 'N' nodes, numbered from 0 to N-1. The objective is to determine the total number of nodes within each subtree of the provided tree. Speci...read more
Ans. 
Given a tree with N nodes, find the number of elements in each subtree rooted at every node.
• Traverse the tree using Depth First Search (DFS) to calculate subtree sizes for each node.

• Use an array to store subtree sizes for each node, starting with leaf nodes having size 1.

• The subtree size of a node is the sum of subtree sizes of its children plus 1 for the node itself.
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Round duration - 120 minutes
Round difficulty - Medium

Pair Programming Interview( this round is similar to machine coding round) it started around 11 AM

Focus Areas: Problem solving and implementation of extensions.

The pair coding round is focused on OOPS concepts. You are paired with a TWer for this round. They let you code first for an hour and in the next hour they review your code and suggest changes which would improve the code structure, readability and make it modular and reusable and functional.
 

Q1. 
River Crossing: Help Ninja Cross Over
Ninja stands at the start of a wooden bridge over a river. Some segments of the bridge are damaged. The undamaged segments, marked as 'safe', are listed in an array S...read more
Ans. 
Check if Ninja can cross the river by jumping from one safe segment to another based on given constraints.
• Iterate through the 'SAFE' array and check if Ninja can make the required jumps to reach the last safe segment.

• Ensure that the next jump is either 'X' - 1, 'X', or 'X' + 1 units from the previous jump.

• Return 'true' if Ninja can successfully cross the river, otherwise return 'false'.
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Round duration - 120 minutes
Round difficulty - Medium

Students who were shortlisted from Pair Programming round was selected for this round around 3 PM. In this round there were two interviewer.

Q1. 
Middle of a Linked List
You are given the head node of a singly linked list. Your task is to return a pointer pointing to the middle of the linked list.
If there is an odd number of elements, return the ...read more
Ans. 
Return the middle element of a singly linked list, or the one farther from the head if there are even elements.
• Traverse the linked list with two pointers, one moving twice as fast as the other

• When the fast pointer reaches the end, the slow pointer will be at the middle

• Return the element pointed to by the slow pointer
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