https://github.com/mkst/euler
My attempts to solve the Project Euler problems
https://github.com/mkst/euler
euler-solutions kdb
Last synced: 5 months ago
JSON representation
My attempts to solve the Project Euler problems
- Host: GitHub
- URL: https://github.com/mkst/euler
- Owner: mkst
- Created: 2017-08-24T17:29:45.000Z (almost 9 years ago)
- Default Branch: master
- Last Pushed: 2019-08-18T14:13:00.000Z (almost 7 years ago)
- Last Synced: 2025-01-23T04:13:17.582Z (over 1 year ago)
- Topics: euler-solutions, kdb
- Language: q
- Size: 61.5 KB
- Stars: 5
- Watchers: 0
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# euler
My attempt to solve the Project Euler problems using Q/kdb+.
- [x] 00001 [Multiples of 3 and 5](q/00001.q)
- [x] 00002 [Even Fibonacci numbers](q/00002.q)
- [x] 00003 [Largest prime factor](q/00003.q)
- [x] 00004 [Largest palindrome product](q/00004.q)
- [x] 00005 [Smallest multiple](q/00005.q)
- [x] 00006 [Sum square difference](q/00006.q)
- [x] 00007 [10001st prime](q/00007.q)
- [x] 00008 [Largest product in a series](q/00008.q)
- [x] 00009 [Special Pythagorean triplet](q/00009.q)
- [x] 00010 [Summation of primes](q/00010.q)
- [x] 00011 [Largest product in a grid](q/00011.q)
- [x] 00012 [Highly divisible triangular number](q/00012.q)
- [x] 00013 [Large sum](q/00013.q)
- [x] 00014 [Longest Collatz sequence](q/00014.q)
- [x] 00015 [Lattice paths](q/00015.q)
- [x] 00016 [Power digit sum](q/00016.q)
- [x] 00017 [Number letter counts](q/00017.q)
- [x] 00018 [Maximum path sum I](q/00018.q)
- [x] 00019 [Counting Sundays](q/00019.q)
- [x] 00020 [Factorial digit sum](q/00020.q)
- [x] 00021 [Amicable numbers](q/00021.q)
- [x] 00022 [Names scores](q/00022.q)
- [x] 00023 [Non-abundant sums](q/00023.q)
- [x] 00024 [Lexicographic permutations](q/00024.q)
- [x] 00025 [1000-digit Fibonacci number](q/00025.q)
- [x] 00026 [Reciprocal cycles](q/00026.q)
- [X] 00027 [Quadratic primes](q/00027.q)
- [x] 00028 [Number spiral diagonals](q/00028.q)
- [x] 00029 [Distinct powers](q/00029.q)
- [x] 00030 [Digit fifth powers](q/00030.q)
- [x] 00031 [Coin sums](q/00031.q)
- [x] 00032 [Pandigital products](q/00032.q)
- [x] 00033 [Digit cancelling fractions](q/00033.q)
- [x] 00034 [Digit factorials](q/00034.q)
- [x] 00035 [Circular primes](q/00035.q)
- [x] 00036 [Double-base palindromes](q/00036.q)
- [x] 00037 [Truncatable primes](q/00037.q)
- [x] 00038 [Pandigital multiples](q/00038.q)
- [x] 00039 [Integer right triangles](q/00039.q)
- [x] 00040 [Champernowne's constant](q/00040.q)
- [x] 00041 [Pandigital prime](q/00041.q)
- [x] 00042 [Coded triangle numbers](q/00042.q)
- [x] 00043 [Sub-string divisibility](q/00043.q)
- ... lots of gaps from here on in
- [x] 00045 [Triangular, pentagonal, and hexagonal](q/00045.q)
- [x] 00048 [Self powers](q/00048.q)
- [x] 00049 [Prime permutations](q/00049.q)
- [x] 00050 [Consecutive prime sum](q/00050.q)
- [x] 00052 [Permuted multiples](q/00052.q)
- [x] 00055 [Lychrel numbers](q/00055.q)
- [x] 00056 [Powerful digit sum](q/00056.q)
- [x] 00059 [XOR decryption](q/00059.q)
- [x] 00062 [Cubic permutations](q/00062.q)
- [x] 00092 [Square digit chains](q/00092.q)
- [x] 00145 [How many reversible numbers are there below one-billion?](q/00145.q)