Math Problems
Practice 56 Math coding problems on Code Arena — from easy to hard, each with a live judge and a solution editorial.
- Sum of Two — Easy · Math, Implementation
- FizzBuzz — Easy · Implementation, Math
- Greatest Common Divisor — Medium · Math, Number Theory
- Primality Test — Medium · Number Theory, Math
- Array Sum — Easy · Arrays, Math
- Even or Odd — Easy · Math
- Sum of Digits — Easy · Math, Strings
- Factorial — Easy · Math
- Nth Fibonacci — Medium · Dynamic Programming, Math
- GCD of an Array — Medium · Math, Number Theory
- Multiply Two — Easy · Math
- Absolute Value — Easy · Math
- Last Digit — Easy · Math
- Leap Year — Easy · Math, Implementation
- Sum of a Range — Easy · Math
- Binary to Decimal — Medium · Math, Strings
- Decimal to Binary — Medium · Math
- Modular Exponentiation — Medium · Math, Number Theory
- Sum of Divisors — Medium · Math, Number Theory
- Count Set Bits — Medium · Math, Bit Manipulation
- Reverse Integer — Medium · Math
- Missing Number — Medium · Arrays, Math
- Nth Prime — Hard · Number Theory, Math
- Plus One — Easy · Arrays, Math
- Shopping Cart Total — Easy · Arrays, Math
- Apply a Discount — Easy · Math
- Add Sales Tax — Easy · Math
- Class Average — Easy · Arrays, Math
- Pagination — Easy · Math
- GC Content — Easy · Strings, Math
- Format a Video Length — Medium · Math, Implementation
- Cash Register Change — Medium · Greedy, Math
- Credit Card Validation — Medium · Math, Implementation
- IP Address to Integer — Medium · Strings, Math
- Spend and Save — Easy · Math
- Tip Total — Easy · Math, Implementation
- Change Due — Easy · Math
- Seconds to HH:MM:SS — Easy · Implementation, Math
- Discounted Price — Easy · Math
- Account Balance — Easy · Arrays, Math
- RGB to Hex Color — Easy · Strings, Implementation, Math
- Parking Fee — Easy · Math, Implementation
- Overtime Pay — Medium · Math, Implementation
- Split the Bill — Medium · Math
- Shift Duration — Medium · Implementation, Math
- Product of Digits — Easy · Math, Strings
- Collatz Steps — Medium · Math, Implementation
- Sum of Multiples — Easy · Math
- Digital Root — Easy · Math
- Even Numbers Up To N — Easy · Implementation, Math
- Sum of Even Elements — Easy · Arrays, Math
- Count Divisors — Easy · Number Theory, Math
- Hex to Decimal — Easy · Math, Implementation
- Pascal's Triangle Row — Medium · Combinatorics, Math
- Power of Two — Medium · Bit Manipulation, Math
- LCM of Array — Medium · Number Theory, Math