Cody

Problems

1 – 40 of 40
 Problem Title Likes Solvers

Problem 44319. Write c^3 as sum of two squares a^2+b^2

Created by: Mehmet OZC

1

254

1

215

Problem 2733. Evil Number

Created by: Jan Orwat

2

179

Problem 2734. N-th Odious

Created by: Jan Orwat

1

117

Problem 2593. Polite numbers. N-th polite number.

Created by: Jan Orwat

2

113

Problem 1826. Find vampire numbers

Created by: Andrew Newell

6

109

Problem 2595. Polite numbers. Politeness.

Created by: Jan Orwat

5

101

Problem 42865. Find the sum of n squares

Created by: William Mitchell

1

96

Problem 1771. Polygonal numbers

Created by: Jan Orwat

3

90

Problem 43130. Nth root

Created by: Abhishek Jain

Tags root, nth, numbers

2

56

Problem 44289. Find two triangular numbers whose sum is input.

Created by: Mehmet OZC

1

51

Problem 656. Calculate Euler's phi function

Created by: Freddy

0

50

Problem 1804. Fangs of a vampire number

Created by: Andrew Newell

3

46

2

38

Problem 2738. Sideways sum

Created by: Jan Orwat

0

32

Problem 1825. Find all vampire fangs

Created by: Andrew Newell

1

31

Problem 2735. Binary Neighbourhood

Created by: Jan Orwat

0

29

Problem 2848. Digital Neighbourhood

Created by: Jan Orwat

1

26

Problem 2370. Fermat's last theorem - again

Created by: rifat

0

23

Problem 44229. How brilliant are you?

Created by: James

3

21

Problem 44748. Amicable numbers

Created by: cdeliu

1

19

Problem 44068. The number of trailing zero digit of a factorial

Created by: Jihye Sofia Seo

1

16

Problem 44230. I'm going to enjoy watching you calculate, Mr Anderson

Created by: James

1

16

Problem 2797. modular arithmetic

Created by: rifat

0

15

Problem 2369. Tribute to Ramanujan

Created by: rifat

1

15

Problem 44065. Number of even divisors of a given number

Created by: Jihye Sofia Seo

0

13

Problem 42888. Frobenius McNugget Factorization

Created by: Ned Gulley

13

12

Problem 45189. Double Factorial

Created by: Mehmet OZC

1

10

Problem 43179. Red and green towers

Created by: Giovanni Mottola

0

10

Created by: HH

0

9

Problem 42889. Should Mr McNugget even get out of bed today?

Created by: James

0

9

Problem 45224. Wythoff Sequence

Created by: Asif Newaz

0

8

Problem 2160. The 17x17 Problem

Created by: Ned Gulley

1

7

Problem 45274. Fangs of pseudo-vampire number

Created by: Asif Newaz

0

7

Problem 42834. Integer complexity (Large numbers)

Created by: Peng Liu

0

6

Problem 2737. Prouhet–Tarry–Escott (basic)

Created by: Jan Orwat

0

6

Problem 45272. Pseudo-vampire number

Created by: Asif Newaz

1

6

Problem 45342. Sieve of Eratosthenes

Created by: Asif Newaz

0

4

Problem 44788. Find the right number make the equation

Created by: Binbin Qi

0

4

Problem 45388. Gapful numbers

Created by: Asif Newaz

0

4

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