Harmon758 / Project-Euler

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Home Page:https://projecteuler.net

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# Name Python C Notes
1 Multiples of 3 or 5 1 2
2 Even Fibonacci Numbers 1 3
3 Largest Prime Factor 1 3
4 Largest Palindrome Product 1 3
5 Smallest Multiple 1 3
6 Sum Square Difference 1 3
7 10001st Prime 1 3
8 Largest Product in a Series 1 3
9 Special Pythagorean Triplet 1 3
10 Summation of Primes 1 3
11 Largest Product in a Grid 1 3
12 Highly Divisible Triangular Number 1 3
13 Large Sum 1 3
14 Longest Collatz Sequence 1 3
15 Lattice Paths 4 3
16 Power Digit Sum 1 3
17 Number Letter Counts 4 5
18 Maximum Path Sum I 1 3
19 Counting Sundays 1
20 Factorial Digit Sum 1 3
67 Maximum Path Sum II 6 3
69 Totient Maximum 4 3
92 Square Digit Chains 4 3
218 Perfect Right-angled Triangles 7 3
317 Firecracker 8
457 A Polynomial Modulo the Square of a Prime 8
487 Sums of Power Sums 8
499 St. Petersburg Lottery 8
506 Clock Sequence 8
684 Inverse Digit Sum 8
719 Number Splitting 8
751 Concatenation Coincidence 8
822 Square the Smallest 8
836 A Bold Proposition 7 8
852 Coins in a Box 8
855 Delphi Paper 8
857 Beautiful Graphs 8
870 Stone Game IV 8

Footnotes

  1. Project Euler Problem solved through ProjectEuler+ Challenge code 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

  2. Previously named "Multiples of 3 and 5": https://projecteuler.chat/viewtopic.php?t=7316. The ProjectEuler+ Challenge still has this name.

  3. Project Euler Problem (Descriptions /) Titles previously did not use title case: https://web.archive.org/web/20230528105433/https://projecteuler.net/archives. This is still reflected in the ProjectEuler+ Challenge name. 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

  4. Project Euler Problem solved through ProjectEuler+ Challenge code, with adjustment of constant variable(s) 2 3 4

  5. The ProjectEuler+ Challenge has a different name: "Number to Words"

  6. Project Euler Problem solved through ProjectEuler+ Challenge code, optionally using the file given as part of the problem

  7. No code necessary 2

  8. No corresponding ProjectEuler+ Challenge yet 2 3 4 5 6 7 8 9 10 11 12 13 14