Math & Geometry

AP or GP Identification

Armstrong Number

Automatic Braking Logic

Categorize Box According to Criteria

Clock Angle Problem

Closest Color Comparison

Combinations of 4-Wheeler and 2-Wheeler Vehicles

Distribute Money to Maximum Children

Divisibility by 5 or 7

Divisor Game

Excel Sheet Column Number

Excel Sheet Column Title

Fizz Buzz

Fuel Consumption Calculator

Generate a String With Characters That Have Odd Counts

Greatest Common Divisor

Greatest Common Divisor of Strings

Happy Number

Human-Readable Time Utility

Nearest Fibonacci Number

Nim Game

Palindrome Number

Point in Circle

Prime Number Optimization

Rectangle Overlap

Relationship Between Circles

Roman to Integer

Strobogrammatic Number

Subtract the Product and Sum of Digits of an Integer

Sum Excluding Multiples of 5 and 7

The Door Flip Puzzle

Time Calculation After N Seconds

Time Conversion

Toy Distribution

Ugly Number

3D Camera Field of View Check

3D Point Orientation

Adding Two Negabinary Numbers

Amicable Pairs

Angle Between Hands of a Clock

Biased Coin Fair Toss

Bulb Switcher

Chocolate Wrapper Puzzle

Convert USD Currency to Words

Convex Polygon

Count Primes

Count Working Days

Divide Two Integers Without Using Division Operator

Divisibility by 11

Elimination Game

Elo Rating System Implementation

Factorial Trailing Zeroes

Find the Child Who Has the Ball After K Seconds

Find the First Day Reaching Target

Fraction Addition and Subtraction

Fraction to Recurring Decimal

Fractional Shares Inventory Management

GCD Pair Count

Greatest Common Divisor of an Array

Implement f12 Using f6

Kth Nearest Prime Number

Leyland Number

Max Points on a Line

Max Unique Exponent

Minimum Factorization

Minimum Paper Folds Puzzle

Minimum Power Consumption (Juice Machines)

Multiply Strings - String Multiplication Without Built-in Libraries

Next Greater Element III

Nth Number in Custom Number System

Number of Days Between Two Dates

Number of Ways to Buy Pens and Pencils

Number to Words (USD Currency)

Palindromes in Base-10 and Base-k

Point in Polygon (GPS Coordinate Check)

Random Pick Index

Rectangle Area

Reverse Integer

Rotate Image

Sequence Join Point

Set Matrix Zeroes

Spiral Matrix

Stream Divisibility

String to Integer (atoi)

Symmetrical Vertical Line

The kth Factor of n

Valid Square

Water and Jug Problem

Best Position for a Service Centre

Binary String Divisible by 3

Consecutive Numbers Sum

Count Array Pairs Divisible by K

Count Good Subsequences

Count Integer Pairs Satisfying 1/x + 1/y = 1/N!

Expression Add Operators

Find the Closest Palindrome

Horizontal Trapezoids

Integer to English Words

Largest Palindrome Product

Linear Diophantine Equation - Minimum Coefficients

Minimum Array Length via Mod Operations

Perfect Rectangle

Reaching Points