Oracle Financial Services Software Associate Consultant Interview Questions, Process, and Tips

Round duration - 90 minutes
Round difficulty - Medium

There were several sections under this round.
1. English Proficiency.
2. Mathematics
3. Aptitude (Verbal and Non Verbal)
4. DS questions (Mostly on Linked List and advance Topics)

Q1. 
Infix to Postfix Conversion
Convert a given infix expression, represented as a string EXP, into its equivalent postfix expression.
Explanation:
An infix expression is formatted as a op b where the opera...read more
Ans. 
Convert infix expression to postfix expression by following operator precedence rules.
• Use a stack to keep track of operators and operands while converting infix to postfix.

• Follow the precedence rules of operators to correctly convert the expression.

• Handle parentheses to ensure correct order of operations.

• Example: For '3+4*8', the postfix expression would be '3 4 8 * +'.
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Q2. 
Count Subsequences Problem Statement
Given an integer array ARR of size N, your task is to find the total number of subsequences in which all elements are equal.
Explanation:
A subsequence of an array i...read more
Ans. 
The task is to find the total number of subsequences in which all elements are equal in an integer array.
• Iterate through the array and count the frequency of each element.

• For each element, calculate the number of subsequences with all elements equal using the formula (frequency * (frequency + 1)) / 2.

• Sum up the counts for all elements and return the result modulo 10^9 + 7.
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Round duration - 45 Minutes
Round difficulty - Easy

It was during the day time.... The interviewers were very friendly and comforted us before starting.

Round duration - 45 Minutes
Round difficulty - Easy

Round duration - 20 Minutes
Round difficulty - Easy