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❍ C/C++
❍ Python
❍ JavaScript
❍ Java
❍ C#
❍ Golang
➊ Simple Numbers
➀ Find a digit at a specific place in a number
➁ Find count of digits in a number
➂ Find the largest digit
➃ Find the 2nd largest digit
➄ Find the kth largest digit
➅ Find the smallest digit
➆ Find the 2nd smallest digit
➇ Find the kth smallest digit
➈ Find generic root (sum of all digits) of a number
➉ Reverse the digits in a number
➀➀ Rotate the digits in a number
➀➁ Is the number a palindrome?
➀➂ Find sum of 'n' numbers
➀➃ Check if a number is perfect square
➀➄ Find a number in an AP sequence
➀➅ Find a number in a GP sequence
➀➆ Find a number in fibonacci sequence
➀➇ Check number divisibility by 2, 3, 5, 9
➀➈ Check if a number is primary or not
20. Given a number, print all primes smaller than it
➁➀ Check if a number is circular prime or not
➁➁ Find all prime factors of a number
➁➂ Find the GCD of 2 numbers
➁➃ Find the LCM of 2 numbers
➁➄ Find the factorial of a number
➁➅ Find the exponentiation of a number
➋ Unit Conversion
➀ Number Base (Binary, Octal, Hexadecimal, Decimal)
➁ Weight (gram, kg, pound)
➂ Height (cm, m, inch, feet)
➃ Temperature (centigrade, fahrenhite)
➄ Distance (km, mile)
➅ Area (m², km², acre)
➆ Volume (ltr, gallon)
➇ Time (sec, min, hour)
➈ Currency
➌ Calculator
➀ Loan EMI Calculator
➁ Fixed Deposit Returns Calculator
➂ Interest Calculator
➃ BMI Calculator
➄ Item Price (considering tax, discount, shipping)
➅ Tip Calculator
➍ Geometry
➀ Find distance between 2 points
➁ Given 2 sides of a right angle triangle, find the 3rd
➂ Find 3rd angle of a triangle when 2 are given
➃ Area of a triangle when 3 sides are given
➄ Area of a right angle triangle
➅ Perimeter of a Square
➆ Area of a Square
➇ Perimeter of a Rectangle
➈ Area of a Rectangle
➉ Circumference of a Circle
➀➀ Area of a Circle
➀➁ Circumference of a Semi-Circle
➀➂ Area of a Semi-Circle
➀➃ Area of a Ring
➀➄ Circumference of an Ellipse
➀➅ Area of an Ellipse
➀➆ Suface Area of a Sphere
➀➇ Volume of a Sphere
➀➈ Surface Area of a Hemisphere
20. Volume of a Hemisphere
➁➀ Surface area of a Cube
➁➁ Volume of a Cube
➁➂ Surface area of a Cylinder
➁➃ Volume of a Cylinder
➎ Vector
➀ Find Scalar Multiplication of a vector
➁ Find addition/subtraction of vectors
➂ Find magnitude of a vector
➃ Find an unit vector along a given vector
➄ Find dot product of 2 vectors
➅ Find cross product of 2 vectors
➆ Check if 2 vectors are orthogonal
➏ Matrix
➀ Find the determinant of a matrix
➁ Find Scalar Multiplication of a matrix
➂ Find addition/subtraction of matrices
➃ Find the transpose of a matrix
➄ Find if 2 matrices are orthogonal
➅ Find inverse of a 2x2 and 3x3 matrix
➐ Set
➀ Find Union of 2 sets
➁ Find Intersection of 2 sets
➂ Find the Difference of 2 sets
➃ Find the Symmetric Difference of 2 sets
➄ Find if a set is subset/superset of another set
➅ Find if 2 sets are disjoints
➑ Special Numbers
➀ Strong Number
➁ Perfect Number
➂ Armstrong Number
➃ Harshad Number
➄ Kaprekar Number
➅ Lychrel Number
➆ Narcissistic Decimal Number
➇ Lucus Number
➈ Catalan Number
➉ Duck Number
➀➀ Ugly Number
➀➁ Abundant Number
➀➂ Deficient Number
➀➃ Automorphic Number
➀➄ Magic Number
➀➅ Friendly Pair Numbers
➀➆ Neon Number
➀➇ Spy Number
➀➈ Happy Number
20. Sunny Number
➁➀ Disarium Number
➁➁ Pronic Number
➁➂ Trimorphic Number
➁➃ Evil Number
➁➄ Amicable Pairs
❍ C/C++
❍ Python
❍ JavaScript
❍ Java
❍ C#
❍ Golang
➊ Simple Numbers
➀ Find a digit at a specific place in a number
➁ Find count of digits in a number
➂ Find the largest digit
➃ Find the 2nd largest digit
➄ Find the kth largest digit
➅ Find the smallest digit
➆ Find the 2nd smallest digit
➇ Find the kth smallest digit
➈ Find generic root (sum of all digits) of a number
➉ Reverse the digits in a number
➀➀ Rotate the digits in a number
➀➁ Is the number a palindrome?
➀➂ Find sum of 'n' numbers
➀➃ Check if a number is perfect square
➀➄ Find a number in an AP sequence
➀➅ Find a number in a GP sequence
➀➆ Find a number in fibonacci sequence
➀➇ Check number divisibility by 2, 3, 5, 9
➀➈ Check if a number is primary or not
20. Given a number, print all primes smaller than it
➁➀ Check if a number is circular prime or not
➁➁ Find all prime factors of a number
➁➂ Find the GCD of 2 numbers
➁➃ Find the LCM of 2 numbers
➁➄ Find the factorial of a number
➁➅ Find the exponentiation of a number
➋ Unit Conversion
➀ Number Base (Binary, Octal, Hexadecimal, Decimal)
➁ Weight (gram, kg, pound)
➂ Height (cm, m, inch, feet)
➃ Temperature (centigrade, fahrenhite)
➄ Distance (km, mile)
➅ Area (m², km², acre)
➆ Volume (ltr, gallon)
➇ Time (sec, min, hour)
➈ Currency
➌ Calculator
➀ Loan EMI Calculator
➁ Fixed Deposit Returns Calculator
➂ Interest Calculator
➃ BMI Calculator
➄ Item Price (considering tax, discount, shipping)
➅ Tip Calculator
➍ Geometry
➀ Find distance between 2 points
➁ Given 2 sides of a right angle triangle, find the 3rd
➂ Find 3rd angle of a triangle when 2 are given
➃ Area of a triangle when 3 sides are given
➄ Area of a right angle triangle
➅ Perimeter of a Square
➆ Area of a Square
➇ Perimeter of a Rectangle
➈ Area of a Rectangle
➉ Circumference of a Circle
➀➀ Area of a Circle
➀➁ Circumference of a Semi-Circle
➀➂ Area of a Semi-Circle
➀➃ Area of a Ring
➀➄ Circumference of an Ellipse
➀➅ Area of an Ellipse
➀➆ Suface Area of a Sphere
➀➇ Volume of a Sphere
➀➈ Surface Area of a Hemisphere
20. Volume of a Hemisphere
➁➀ Surface area of a Cube
➁➁ Volume of a Cube
➁➂ Surface area of a Cylinder
➁➃ Volume of a Cylinder
➎ Vector
➀ Find Scalar Multiplication of a vector
➁ Find addition/subtraction of vectors
➂ Find magnitude of a vector
➃ Find an unit vector along a given vector
➄ Find dot product of 2 vectors
➅ Find cross product of 2 vectors
➆ Check if 2 vectors are orthogonal
➏ Matrix
➀ Find the determinant of a matrix
➁ Find Scalar Multiplication of a matrix
➂ Find addition/subtraction of matrices
➃ Find the transpose of a matrix
➄ Find if 2 matrices are orthogonal
➅ Find inverse of a 2x2 and 3x3 matrix
➐ Set
➀ Find Union of 2 sets
➁ Find Intersection of 2 sets
➂ Find the Difference of 2 sets
➃ Find the Symmetric Difference of 2 sets
➄ Find if a set is subset/superset of another set
➅ Find if 2 sets are disjoints
➑ Special Numbers
➀ Strong Number
➁ Perfect Number
➂ Armstrong Number
➃ Harshad Number
➄ Kaprekar Number
➅ Lychrel Number
➆ Narcissistic Decimal Number
➇ Lucus Number
➈ Catalan Number
➉ Duck Number
➀➀ Ugly Number
➀➁ Abundant Number
➀➂ Deficient Number
➀➃ Automorphic Number
➀➄ Magic Number
➀➅ Friendly Pair Numbers
➀➆ Neon Number
➀➇ Spy Number
➀➈ Happy Number
20. Sunny Number
➁➀ Disarium Number
➁➁ Pronic Number
➁➂ Trimorphic Number
➁➃ Evil Number
➁➄ Amicable Pairs
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Getting started with SQL comparison operators.
If you're new to SQL, understanding comparison operators is one of the first things you'll need to learn.
They’re really important for filtering and analyzing your data. Let’s break them down with some simple examples.
Comparison operators let you compare values in SQL queries. Here are the basics:
1. = (Equal To): Checks if two values are the same.
Example: SELECT * FROM Employees WHERE Age = 30; (This will find all employees who are exactly 30 years old).
2. <> or != (Not Equal To): Checks if two values are different.
Example: SELECT * FROM Employees WHERE Age <> 30; (This will find all employees who are not 30 years old).
3. > (Greater Than): Checks if a value is larger.
Example: SELECT * FROM Employees WHERE Salary > 50000; (This will list all employees earning more than 50,000).
4. < (Less Than): Checks if a value is smaller.
Example: SELECT * FROM Employees WHERE Salary < 50000; (This will show all employees earning less than 50,000).
5. >= (Greater Than or Equal To): Checks if a value is larger or equal.
Example: SELECT * FROM Employees WHERE Age >= 25; (This will find all employees who are 25 years old or older).
6. <= (Less Than or Equal To): Checks if a value is smaller or equal.
Example: SELECT * FROM Employees WHERE Age <= 30; (This will find all employees who are 30 years old or younger).
These simple operators can help you get more accurate results in your SQL queries.
Keep practicing and you’ll be great at SQL in no time.
Like this post if you need more 👍❤️
Hope it helps :)
If you're new to SQL, understanding comparison operators is one of the first things you'll need to learn.
They’re really important for filtering and analyzing your data. Let’s break them down with some simple examples.
Comparison operators let you compare values in SQL queries. Here are the basics:
1. = (Equal To): Checks if two values are the same.
Example: SELECT * FROM Employees WHERE Age = 30; (This will find all employees who are exactly 30 years old).
2. <> or != (Not Equal To): Checks if two values are different.
Example: SELECT * FROM Employees WHERE Age <> 30; (This will find all employees who are not 30 years old).
3. > (Greater Than): Checks if a value is larger.
Example: SELECT * FROM Employees WHERE Salary > 50000; (This will list all employees earning more than 50,000).
4. < (Less Than): Checks if a value is smaller.
Example: SELECT * FROM Employees WHERE Salary < 50000; (This will show all employees earning less than 50,000).
5. >= (Greater Than or Equal To): Checks if a value is larger or equal.
Example: SELECT * FROM Employees WHERE Age >= 25; (This will find all employees who are 25 years old or older).
6. <= (Less Than or Equal To): Checks if a value is smaller or equal.
Example: SELECT * FROM Employees WHERE Age <= 30; (This will find all employees who are 30 years old or younger).
These simple operators can help you get more accurate results in your SQL queries.
Keep practicing and you’ll be great at SQL in no time.
Like this post if you need more 👍❤️
Hope it helps :)
❤1👍1
Common Programming Interview Questions
How do you reverse a string?
How do you determine if a string is a palindrome?
How do you calculate the number of numerical digits in a string?
How do you find the count for the occurrence of a particular character in a string?
How do you find the non-matching characters in a string?
How do you find out if the two given strings are anagrams?
How do you calculate the number of vowels and consonants in a string?
How do you total all of the matching integer elements in an array?
How do you reverse an array?
How do you find the maximum element in an array?
How do you sort an array of integers in ascending order?
How do you print a Fibonacci sequence using recursion?
How do you calculate the sum of two integers?
How do you find the average of numbers in a list?
How do you check if an integer is even or odd?
How do you find the middle element of a linked list?
How do you remove a loop in a linked list?
How do you merge two sorted linked lists?
How do you implement binary search to find an element in a sorted array?
How do you print a binary tree in vertical order?
Conceptual Coding Interview Questions
What is a data structure?
What is an array?
What is a linked list?
What is the difference between an array and a linked list?
What is LIFO?
What is FIFO?
What is a stack?
What are binary trees?
What are binary search trees?
What is object-oriented programming?
What is the purpose of a loop in programming?
What is a conditional statement?
What is debugging?
What is recursion?
What are the differences between linear and non-linear data structures?
General Coding Interview Questions
What programming languages do you have experience working with?
Describe a time you faced a challenge in a project you were working on and how you overcame it.
Walk me through a project you’re currently or have recently worked on.
Give an example of a project you worked on where you had to learn a new programming language or technology. How did you go about learning it?
How do you ensure your code is readable by other developers?
What are your interests outside of programming?
How do you keep your skills sharp and up to date?
How do you collaborate on projects with non-technical team members?
Tell me about a time when you had to explain a complex technical concept to a non-technical team member.
How do you get started on a new coding project?
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How do you reverse a string?
How do you determine if a string is a palindrome?
How do you calculate the number of numerical digits in a string?
How do you find the count for the occurrence of a particular character in a string?
How do you find the non-matching characters in a string?
How do you find out if the two given strings are anagrams?
How do you calculate the number of vowels and consonants in a string?
How do you total all of the matching integer elements in an array?
How do you reverse an array?
How do you find the maximum element in an array?
How do you sort an array of integers in ascending order?
How do you print a Fibonacci sequence using recursion?
How do you calculate the sum of two integers?
How do you find the average of numbers in a list?
How do you check if an integer is even or odd?
How do you find the middle element of a linked list?
How do you remove a loop in a linked list?
How do you merge two sorted linked lists?
How do you implement binary search to find an element in a sorted array?
How do you print a binary tree in vertical order?
Conceptual Coding Interview Questions
What is a data structure?
What is an array?
What is a linked list?
What is the difference between an array and a linked list?
What is LIFO?
What is FIFO?
What is a stack?
What are binary trees?
What are binary search trees?
What is object-oriented programming?
What is the purpose of a loop in programming?
What is a conditional statement?
What is debugging?
What is recursion?
What are the differences between linear and non-linear data structures?
General Coding Interview Questions
What programming languages do you have experience working with?
Describe a time you faced a challenge in a project you were working on and how you overcame it.
Walk me through a project you’re currently or have recently worked on.
Give an example of a project you worked on where you had to learn a new programming language or technology. How did you go about learning it?
How do you ensure your code is readable by other developers?
What are your interests outside of programming?
How do you keep your skills sharp and up to date?
How do you collaborate on projects with non-technical team members?
Tell me about a time when you had to explain a complex technical concept to a non-technical team member.
How do you get started on a new coding project?
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🔰 MongoDB Roadmap for Beginners 2025
├── 🧠 What is NoSQL? Why MongoDB?
├── ⚙️ Installing MongoDB & MongoDB Atlas Setup
├── 📦 Databases, Collections, Documents
├── 🔍 CRUD Operations (insertOne, find, update, delete)
├── 🔁 Query Operators ($gt, $in, $regex, etc.)
├── 🧪 Mini Project: Student Record Manager
├── 🧩 Schema Design & Data Modeling
├── 📂 Embedding vs Referencing
├── 🔐 Indexes & Performance Optimization
├── 🛡 Data Validation & Aggregation Pipeline
├── 🧪 Mini Project: Analytics Dashboard (Aggregation + Filters)
├── 🌐 Connecting MongoDB with Node.js (Mongoose ORM)
├── 🧱 Relationships in NoSQL (1-1, 1-Many, Many-Many)
├── ✅ Backup, Restore, and Security Best Practices
#mongodb
├── 🧠 What is NoSQL? Why MongoDB?
├── ⚙️ Installing MongoDB & MongoDB Atlas Setup
├── 📦 Databases, Collections, Documents
├── 🔍 CRUD Operations (insertOne, find, update, delete)
├── 🔁 Query Operators ($gt, $in, $regex, etc.)
├── 🧪 Mini Project: Student Record Manager
├── 🧩 Schema Design & Data Modeling
├── 📂 Embedding vs Referencing
├── 🔐 Indexes & Performance Optimization
├── 🛡 Data Validation & Aggregation Pipeline
├── 🧪 Mini Project: Analytics Dashboard (Aggregation + Filters)
├── 🌐 Connecting MongoDB with Node.js (Mongoose ORM)
├── 🧱 Relationships in NoSQL (1-1, 1-Many, Many-Many)
├── ✅ Backup, Restore, and Security Best Practices
#mongodb
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