A collection of Python scripts solving some of the math-info problems available online at https://projecteuler.net/.
I used Python3 along with its native libraries, plus tqdm for the progress bars.
| Problem ID | Name | Difficulty |
|---|---|---|
| 1 | Multiples of 3 and 5 | 5% |
| 2 | Even Fibonacci numbers | 5% |
| 3 | Largest prime factor | 5% |
| 4 | Largest palindrome product | 5% |
| 5 | Smallest multiple | 5% |
| 6 | Sum square difference | 5% |
| 7 | 10001st prime | 5% |
| 8 | Largest product in a series | 5% |
| 9 | Special Pythagorean triplet | 5% |
| 10 | Summation of primes | 5% |
| 11 | Largest product in a grid | 5% |
| 12 | Highly divisible triangular number | 5% |
| 13 | Large sum | 5% |
| 14 | Longest Collatz sequence | 5% |
| 15 | Lattice paths | 5% |
| 16 | Power digit sum | 5% |
| 17 | Number letter counts | 5% |
| 18 | Maximum path sum I | 5% |
| 19 | Counting Sundays | 5% |
| 20 | Factorial digit sum | 5% |
| 21 | Amicable numbers | 5% |
| 22 | Names scores | 5% |
| 23 | Non-abundant sums | 5% |
| 24 | Lexicographic permutations | 5% |
| 25 | 1000-digit Fibonacci number | 5% |
| 26 | Reciprocal cycles | 5% |
| 27 | Quadratic primes | 5% |
| 28 | Number spiral diagonals | 5% |
| 29 | Distinct powers | 5% |
| 30 | Digit fifth powers | 5% |
| 31 | Coin sums | 5% |
| 32 | Pandigital products | 5% |
| 33 | Digit cancelling fractions | 5% |
| 34 | Digit factorials | 5% |
| 35 | Circular primes | 5% |
| 36 | Double-base palindromes | 5% |
| 37 | Truncatable primes | 5% |
| 38 | Pandigital multiples | 5% |
| 39 | Integer right triangles | 5% |
| 40 | Champernowne's constant | 5% |
| 41 | Pandigital prime | 5% |
| 42 | Coded triangle numbers | 5% |
| 43 | Sub-string divisibility | 5% |
| 44 | Pentagon numbers | 5% |
| 45 | Triangular, pentagonal and hexagonal | 5% |
| 46 | Goldobach's other conjecture | 5% |
| 54 | Poker hands | 10% |
| 65 | Convergents of e | 15% |
| 67 | Maximum path sum II | 5% |
| 79 | Passcode derivation | 5% |
| 89 | Roman numerals | 20% |
| 92 | Square digit chains | 5% |
| 107 | Minimal network | 35% |
| 202 | Laserbeam | 60% |
| 205 | Dice game | 15% |
| 209 | Circular logic | 60% |