Problem 2454. birthday on same day of week
Say, Mr. X's birthday is on 20th July, 2014. It was Sunday. Determine the closest year when his birthday will again be on Sunday. In this case it is, 2025.
Input is a date string representing Mr. X's birthday. Return the year as double.
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The Prime Directive
- 14 Problems
- 36 Finishers
- Find the nearest prime number
- Extra safe primes
- Prime factor digits
- Twin Primes
- Twins in a Window
- The Goldbach Conjecture
- The Goldbach Conjecture, Part 2
- Goldbach's marginal conjecture - Write integer as sum of three primes
- Sophie Germain prime
- Mersenne Primes vs. All Primes
- Circular Primes (based on Project Euler, problem 35)
- Numbers spiral diagonals (Part 2)
- Pernicious Anniversary Problem
- Prime Ladders
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