Cody

Problems

1 – 35 of 35
Problem Title
Likes
Solvers
Difficulty

Problem 42937. Project Euler: Problem 14, Longest Collatz sequence

Created by: Riam Su

Tags projecteuler

1

18

Problem 2721. Pandigital Factors (Based on Euler 491)

Created by: James

Tags projecteuler, pandigital

2

33

Problem 1106. I've got the power! (Inspired by Project Euler problem 29)

Created by: James

Tags projecteuler, powers, snap!

2

99

Problem 250. Project Euler: Problem 10, Sum of Primes

Created by: Doug Hull

Tags projecteuler, basic matlab

6

1216

Problem 240. Project Euler: Problem 6, Natural numbers, squares and sums.

Created by: Doug Hull

Tags projecteuler

10

1589

Problem 42754. Odd elimination

Created by: Zikobrelli

Tags projecteuler

1

52

Problem 42913. Pseudo Square Root (Inspired by Project Euler 266)

Created by: James

Tags projecteuler

1

39

Problem 1084. Square Digits Number Chain Terminal Value (Inspired by Project Euler Problem 92)

Created by: @bmtran (Bryant Tran)

Tags projecteuler, plus15, poor_problem_statement

1

196

Problem 230. Project Euler: Problem 1, Multiples of 3 and 5

Created by: Doug Hull

Tags projecteuler

36

2329

Problem 1082. Lychrel Number Test (Inspired by Project Euler Problem 55)

Created by: @bmtran (Bryant Tran)

Tags projecteuler, plus15

1

73

Problem 42394. It's going down. We're finding simbers!

Created by: James

Tags projecteuler, you better move, you better dance

3

59

Problem 2606. Decrypt the cypher using XOR encryption (for beginners)

Created by: Jean-Marie Sainthillier

Tags xor, projecteuler, encryption

2

36

Problem 2664. Divisors for big integer

Created by: Jean-Marie Sainthillier

Tags projecteuler, divisors

2

94

Problem 241. Project Euler: Problem 7, Nth prime

Created by: Doug Hull

Tags primes, projecteuler

14

1041

Problem 42935. Sums of cubes and squares of sums

Created by: John D'Errico

Tags integers, projecteuler, numbers

7

179

Problem 44732. Highly divisible triangular number (inspired by Project Euler 12)

Created by: goc3

Tags series, triangle, projecteuler

1

73

Problem 239. Project Euler: Problem 5, Smallest multiple

Created by: Doug Hull

Tags projecteuler

9

893

Problem 232. Project Euler: Problem 2, Sum of even Fibonacci

Created by: Dyuman Joshi

Tags projecteuler, fibonacci

25

1555

Problem 1190. Golomb's self-describing sequence (based on Euler 341)

Created by: James

Tags projecteuler, self-referential, golomb sequence

3

131

Problem 246. Project Euler: Problem 8, Find largest product in a large string of numbers

Created by: Doug Hull

Tags projecteuler

4

743

Problem 249. Project Euler: Problem 9, Pythagorean numbers

Created by: Doug Hull

Tags projecteuler

5

741

Problem 234. Project Euler: Problem 3, Largest prime factor

Created by: Doug Hull

Tags projecteuler

9

942

Problem 42938. Project Euler: Problem 18, Maximum path sum I

Created by: Riam Su

Tags projecteuler, euler

3

73

Problem 42936. Project Euler: Problem 11, Largest product in a grid

Created by: Riam Su

Tags projecteuler

4

61

Problem 1095. Circular Primes (based on Project Euler, problem 35)

Created by: James

Tags primes, projecteuler, circular reasoning

7

288

Problem 235. Project Euler: Problem 4, Palindromic numbers

Created by: Doug Hull

Tags projecteuler

5

677

Problem 1891. High Precision Square Root (Inspired by Project Euler 80)

Created by: James

Tags projecteuler, square root

2

22

Problem 52532. Easy Sequences 5: Project Euler Problem 1 - Again!

Created by: Ramon Villamangca

Tags easy, sequences, projecteuler

1

5

Problem 1103. Right Triangle Side Lengths (Inspired by Project Euler Problem 39)

Created by: @bmtran (Bryant Tran)

Tags projecteuler, plus15

27

1146

Problem 1215. Diophantine Equations (Inspired by Project Euler, problem 66)

Created by: James

Tags projecteuler, diophantine, pell equation

3

44

Problem 44316. Pandigital Multiples of 11 (based on Project Euler 491)

Created by: James

Tags projecteuler, pandigital, cody5

5

46

Problem 44793. Project Euler 249: Prime Subset Sums

Created by: li haitao

Tags projecteuler

1

17

Problem 45429. Prime Sum

Created by: Asif Newaz

Tags primes, projecteuler, euler

0

7

Problem 44448. Project Euler: Problem 14 Longest Collatz sequence

Created by: li haitao

Tags projecteuler, speed optimization

2

10

Problem 53965. Easy Sequences 67: Project Euler Problem 1 - Not Again!!!

Created by: Ramon Villamangca

Tags easy, projecteuler, number theory

2

2
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