## Project Euler

Link | Completion date | Tags
--- | --- | ---
Problem 001 | Tue, 19 Aug 2014, 20:11 | `brute force`
Problem 002 | Tue, 19 Aug 2014, 20:36 | `fibonacci`
Problem 003 | Tue, 19 Aug 2014, 23:35 | `prime`
Problem 004 | Wed, 20 Aug 2014, 13:27 | `palindrome` `combinations` `brute force` `timeit`
Problem 005 | Wed, 20 Aug 2014, 14:32 | `reduce` `divisible`
Problem 006 | Wed, 20 Aug 2014, 15:13 |
Problem 007 | Wed, 20 Aug 2014, 15:40 | `prime` `nth prime` `nth` `generator`
Problem 008 | Wed, 20 Aug 2014, 16:03 | `product` `reduce` `slice`
Problem 009 | Wed, 20 Aug 2014, 17:06 | `brute force` `pythagorean` `triplet`
Problem 010 | Wed, 20 Aug 2014, 20:28 | `primes` `brute force` `timeit`
Problem 011 | Sun, 31 Aug 2014, 07:39 | `brute force` `product` `matrix` `tricky` `diagonal`
Problem 012 | Sun, 31 Aug 2014, 17:07 | `triangular` `number` `divisors` `factorization` `prime` `group`
Problem 013 | Sun, 31 Aug 2014, 19:03 | `brute force` `sum`
Problem 014 | Sun, 31 Aug 2014, 19:45 | `collatz` `cache` `deque`
Problem 015 | Sun, 31 Aug 2014, 20:05 | `factorial` `grid`
Problem 016 | Sun, 31 Aug 2014, 20:49 | `c` `manual`
Problem 017 | Sun, 31 Aug 2014, 21:20 | `count` `numbers` `tricky`
Problem 018 | Thu, 4 Sep 2014, 20:38 | `fold` `reduce` `search`
Problem 019 | Fri, 5 Sep 2014, 09:56 | `weekdays` `brain` `brute force` `leap year`
Problem 020 | Fri, 5 Sep 2014, 10:42 | `factorial`
Problem 021 | Fri, 5 Sep 2014, 14:39 | `amicable` `sieve of eratosthenes` `factors` `timeit`
Problem 022 | Fri, 5 Sep 2014, 15:24 | `sorting` `lexicographical order`
Problem 023 | Thu, 5 Nov 2015, 14:48 | `perfect number` `abundant` `factors`
Problem 024 | Thu, 5 Nov 2015, 16:04 | `permutation`
Problem 025 | Fri, 5 Sep 2014, 14:57 | `fibonacci`
Problem 026 | Mon, 9 Nov 2015, 22:11 | `reciprocal` `division` `nominator` `denominator`
Problem 027 | Mon, 21 Aug 2017, 21:11 | `quadratic` `primes` `formula` `brain`
Problem 028 | Wed, 23 Aug 2017, 15:54 | `spiral` `diagonals`
Problem 029 | Fri, 25 Aug 2017, 10:03 | `distinct` `powers`
Problem 030 | Fri, 25 Aug 2017, 12:13 | `digit` `powers` `brute force`
Problem 031 | Fri, 25 Aug 2017, 13:02 | `recursion` `coins`
Problem 032 | Wed, 30 Aug 2017, 14:25 | `pandigital` `products`
Problem 033 | Mon, 12 Feb 2018, 17:29 | `gcd` `curious` `faction`
Problem 034 | Mon, 12 Feb 2018, 17:57 | `factorial` `brute force`
Problem 035 | Tue, 13 Feb 2018, 09:14 | `circular` `combinations`
Problem 036 | Fri, 11 May 2018, 02:38 | `palindrome` `brute force`
Problem 037 | Sun, 13 May 2018, 16:46 | `primes` `truncated`
Problem 038 | Sat, 19 May 2018, 23:45 | `concatenated` `product` `pandigital`
Problem 039 | Sun, 20 May 2018, 21:16 | `triangle` `right` `integer`
Problem 040 | Sun, 20 May 2018, 00:40 | `champernowne` `product` `fraction`
Problem 041 | Wed, 19 Dec 2018, 20:14 | `pandigital` `prime` `fermat` `test`
Problem 042 | Thu, 20 Dec 2018, 16:14 | `triangle` `words`
Problem 043 | Fri, 21 Dec 2018, 16:28 | `pandigital` `divisibility` `permutations`
Problem 044 | Sat, 22 Dec 2018, 22:57 | `pentagonal` `brute force` `improve`
Problem 045 | Sat, 22 Dec 2018, 23:17 | `triangular` `pentagonal` `hexagonal`
Problem 046 | Sat, 22 Dec 2018, 23:39 | `prime` `goldbach` `composite` `square` `fermat`
Problem 047 | Sun, 23 Dec 2018, 00:24 | `trial division` `prime` `brute force`
Problem 048 | Sun, 23 Dec 2018, 00:32 | `brute force` `self power`
Problem 049 | Sun, 23 Dec 2018, 01:10 | `permutations` `primes` `sequence`
Problem 050 | Sun, 23 Dec 2018, 02:38 | `brute force` `consecutive` `primes` `search`
Problem 051 | Sun, 23 Dec 2018, 23:47 | `prime` `combinations` `replacement`
Problem 052 | Mon, 24 Dec 2018, 02:32 | `digits` `permutations`
Problem 053 | Mon, 24 Dec 2018, 23:29 | `combinatoric` `selection` `factorial` `airplane`
Problem 054 | Mon, 24 Dec 2018, 23:30 | `poker` `airplane`
Problem 055 | Mon, 24 Dec 2018, 23:32 | `lychrel` `airplane`
Problem 056 | Mon, 24 Dec 2018, 23:33 | `power` `brute force`
Problem 057 | Mon, 24 Dec 2018, 23:35 | `square root` `gcd` `airplane` `fractions`
Problem 058 | Sat, 29 Dec 2018, 09:00 | `prime` `fermat` `spiral` `diagonal` `todo`
Problem 059 | Sat, 5 Jan 2019, 00:10 | `xor` `cipher` `encryption`
Problem 060 | Sun, 6 Jan 2019, 05:00 | `prime` `pairs`
Problem 061 | Sun, 6 Jan 2019, 05:32 | `search` `cyclic`
Problem 062 | Sun, 6 Jan 2019, 05:47 | `cubes`
Problem 063 | Sun, 6 Jan 2019, 06:17 | `powers`
Problem 064 | Tue, 22 Jan 2019, 05:10 | `fractions` `square roots` `sequence` `periodic`
Problem 065 | Wed, 23 Jan 2019, 05:54 | `expansion` `e` `sequence`
Problem 066 | Mon, 28 Jan 2019, 21:08 | `diophantine` `equation` `pell's equation`
Problem 067 | Fri, 5 Sep 2014, 07:36 | `reduce` `triangle`
Problem 068 |  |