Oracle interview experience Real time questions & tips from candidates to crack your interview

SDE

Oracle
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2 rounds | 7 Coding problems

Interview preparation journey

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Preparation
Duration: 3 months
Topics: System Design, OS, Array, Pointer, Aptitude Skills
Tip
Tip

Tip 1 : Solve basics of reasoning skills.
Tip 2 : Do atleast one project

Application process
Where: Hackerrank
Eligibility: No criteria
Resume Tip
Resume tip

Tip 1 : Describe yourself
Tip 2 : Make it Look Professionally Formatted

Interview rounds

01
Round
Hard
Face to Face
Duration72 minutes
Interview date1 Apr 2022
Coding problem6

- Noon time
- Environment was good.
- No activity
- Interviewer was good

Moderate
20m average time
80% success
0/80
Asked in companies
HCL TechnologiesAmazonOracle

You are given an ‘M*N’ Matrix, You need to print all possible paths from its top left corner to the bottom right corner if given that you can either move right i.e from (i,j) to (i,j+1) or down i.e from (i, j) to (i+1, j).

For Example :
1 2 3
4 5 6

For the above 2*3 matrix , possible paths are (1 2 3 6) , (1 2 5 6) , (1 4 5 6).
Note :
You can return the paths in any order.
Try solving now

2. Minimum Operations To Make Array Equal

Easy
10m average time
90% success
0/40
Asked in companies
OracleDunzoSprinklr

You are given an array ‘ARR’ of length ‘N’ which is filled with the values such that ARR[i] = (2*i + 1). You have to perform operations on the ‘ARR’ to make all elements of the array equal. In one operation, you can choose two elements from the array ‘ARR’ say ‘i’ and ‘j’, and can increment the value of ‘ARR[i]’ by one and decrement the value of ‘ARR[j]’ by one.

You have to find the minimum number of operations to make all the elements of the array ‘ARR’ equal. It is guaranteed that all elements of the array can be made equal using some operations.

Try solving now

3. XOR Property

Easy
15m average time
80% success
0/40
Asked in companies
OraclePaisabazaar

You are given a Full Binary Tree with N nodes. Your task is to check whether it satisfies XOR Property.

XOR Property of Binary Tree: Every node should be XOR of it's left and right child.

For Example :
Consider the Binary Tree below :

Alt Text

Here only node 1 has both its children. Also 1 = 3^2. So the answer for the above test case is true. We consider the xor only when both the children are present.
Try solving now

4. Special Cells in Binary Matrix

Easy
30m average time
75% success
0/40
Asked in companies
UberOracle

Ninja is observing a Binary matrix of size N * M . A Binary Matrix is made up of only 0’s and 1’s. Ninja wants to know the number of special cells in the matrix. The conditions of a cell to be a special cell are:

The value of M[i][j] should be 1.
All other cells of row i should be 0.
All other cells of column j should be 0.

You are given the matrix ‘MAT’ of size N * M. Your task is to find the number of special cells in the given matrix.

For Example
For the matrix :
  1  0  0
  0  0  0
  0  1  0

The Answer will be 2 as cell (0,0) and (2,1) are special.(Indexing is 0 based). 
Try solving now

5. Puzzle Question

How many times can you subtract 10 from 100?

A) 9 times B) 10 times
C) 1 time D) 0 times

6. Puzzle Question

If A is substituted by 4, B by 3, C by 2, D by 4, E by 3, F by 2 and so on, then what will be total of the numerical values of the letters of the word SICK?

Problem approach

Tip 1: Practice RS aggrawal

Answer- Total value = 4 + 2 + 2 + 3 = 11.

02
Round
Easy
HR Round
Duration10 minutes
Interview date14 Apr 2022
Coding problem1

- Morning time
- Environment was good.
- No other significant activity
- Interviewer was not soo good

1. Basic HR Questions

Tell me about yourself 

How would you rate yourself? 

What three factors do you attribute to your success in life? 

What are positive things in you?

Problem approach

Tip 1 : Practice all questions verbally
Tip 2 : Speak point to point

Here's your problem of the day

Solving this problem will increase your chance to get selected in this company

Skill covered: Programming

How do you remove whitespace from the start of a string?

Choose another skill to practice
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