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Problem 44705. Expand 10^n to Powers of 4

Created by: J. S. Kowontan

Tags pyramid, combination, number triangle

4

Solutions

33

Size

4

Solutions

33

Size

Problem 44682. Numbers on 7-segment

Created by: Majid Farzaneh

Tags matrix, digits, 7-segment

1

Solution

128

Size

1

Solution

128

Size

Problem 721. Convert from Base 10 to base 5

Created by: Reza Ahmadzadeh

Tags mathematics

1

Solution

15

Size

1

Solution

15

Size

Problem 44637. Still more miles to go before I sleep

Created by: James

Tags odometer, number bases

2

Solutions

265

Size

2

Solutions

265

Size

Problem 44523. Pattern Sum

Created by: Dishant Varshney

Tags sequences, series, sum

1

Solution

40

Size

1

Solution

40

Size

Problem 753. Solitaire Cipher

Created by: Doug Hull

Tags asee, poor_test_suite

2

Solutions

392

Size

2

Solutions

392

Size

Problem 417. Covering area

Created by: Nikolai

Tags area, triangulation, geometrics

5

Solutions

134

Size

5

Solutions

134

Size

Problem 190. Great Circle Distance

Created by: @bmtran (Bryant Tran)

Tags distance, great circle, azimuth

1

Solution

162

Size

1

Solution

162

Size

Problem 193. Smallest distance between a point and a rectangle

Created by: Alfonso Nieto-Castanon

Tags math, distance

1

Solution

774

Size

1

Solution

774

Size

Problem 636. Spherical radius given four points

Created by: Richard Zapor

Tags geometry linear algebra, non-linear

3

Solutions

380

Size

3

Solutions

380

Size

Problem 194. Clockwise or Counterclockwise

Created by: Alfonso Nieto-Castanon

Tags math, polygon

3

Solutions

448

Size

3

Solutions

448

Size

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

Created by: @bmtran (Bryant Tran)

Tags projecteuler, plus15

1

Solution

295

Size

1

Solution

295

Size

Problem 139. Determine if a Given Number is a Triangle Number

Created by: @bmtran (Bryant Tran)

Tags triangle numbers

3

Solutions

62

Size

3

Solutions

62

Size

Problem 166. Kaprekar numbers

Created by: the cyclist

Tags kaprekar

1

Solution

74

Size

1

Solution

74

Size

Problem 1471. Index of a Rational number

Created by: G K

Tags math

1

Solution

81

Size

1

Solution

81

Size

Problem 1472. nth Rational Number

Created by: G K

Tags math

1

Solution

164

Size

1

Solution

164

Size

Problem 156. Parasitic numbers

Created by: the cyclist

Tags parasitic

3

Solutions

135

Size

3

Solutions

135

Size

Problem 1742. Generate a Parasitic Number

Created by: James

Tags parasitic, cyclic

3

Solutions

211

Size

3

Solutions

211

Size

Problem 1771. Polygonal numbers

Created by: Jan Orwat

Tags number theory, sequence, polygonal

1

Solution

30

Size

1

Solution

30

Size

Problem 1826. Find vampire numbers

Created by: Andrew Newell

Tags factors, number theory

2

Solutions

184

Size

2

Solutions

184

Size

Problem 1925. Smith numbers

Created by: Sky Sartorius

Tags sum, factors

1

Solution

91

Size

1

Solution

91

Size

Problem 1997. Compute Fibonacci Number

Created by: Alex

Tags numbers, fibonacci

2

Solutions

45

Size

2

Solutions

45

Size

Problem 2056. Is this number Munchhausen?

Created by: Ted

Tags math, narcissistic number, munchhausen

4

Solutions

33

Size

4

Solutions

33

Size

Problem 2061. Narcissistic number ?

Created by: Jean-Marie Sainthillier

Tags narcissistic

1

Solution

40

Size

1

Solution

40

Size

Problem 2248. Bell Number calculator

Created by: robin

Tags sets, partition

2

Solutions

77

Size

2

Solutions

77

Size

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

Created by: Jan Orwat

Tags number theory, a138591

1

Solution

29

Size

1

Solution

29

Size

Problem 2595. Polite numbers. Politeness.

Created by: Jan Orwat

Tags number theory, oeis

2

Solutions

50

Size

2

Solutions

50

Size

Problem 2674. Generalised Hamming Number

Created by: Jean-Marie Sainthillier

Tags hamming

2

Solutions

103

Size

2

Solutions

103

Size

Problem 2690. Armstrong Number

Created by: VIVEK RUHELA

Tags arithmetic, basic matlab

1

Solution

40

Size

1

Solution

40

Size

Problem 2733. Evil Number

Created by: Jan Orwat

Tags easy, number theory, oeis

1

Solution

64

Size

1

Solution

64

Size

Problem 2734. N-th Odious

Created by: Jan Orwat

Tags number theory, oeis, pop series

1

Solution

71

Size

1

Solution

71

Size

Problem 2819. Find the 9's Complement

Created by: Pritesh Shah

Tags matlab

1

Solution

22

Size

1

Solution

22

Size

Problem 2869. There are 10 types of people in the world

Created by: James

Tags binary, palindromes

2

Solutions

44

Size

2

Solutions

44

Size

Problem 43977. Converting binary to decimals

Created by: Nadhirah Nordin

Tags binary, test, basics

1

Solution

12

Size

1

Solution

12

Size

Problem 2891. Binary code (array)

Created by: Yannick

Tags binary, vector, basic matlab

1

Solution

34

Size

1

Solution

34

Size

Problem 1547. Relative ratio of "1" in binary number

Created by: Marek Kuklis

Tags matlab, binary

1

Solution

44

Size

1

Solution

44

Size

Problem 1295. Bit Reversal

Created by: @bmtran (Bryant Tran)

Tags plus15, bit reversal

1

Solution

53

Size

1

Solution

53

Size

Problem 108. Given an unsigned integer x, find the largest y by rearranging the bits in x

Created by: AMITAVA BISWAS

Tags binary

1

Solution

25

Size

1

Solution

25

Size

Problem 2678. Find out sum and carry of Binary adder

Created by: Pritesh Shah

Tags binary

2

Solutions

94

Size

2

Solutions

94

Size

Problem 2522. Convert given decimal number to binary number.

Created by: Pritesh Shah

Tags binary, numbers

1

Solution

14

Size

1

Solution

14

Size

Problem 15. Find the longest sequence of 1's in a binary sequence.

Created by: Cody Team

Tags regexp, diff, strings

2

Solutions

84

Size

2

Solutions

84

Size

Problem 512. Spot the rectangle

Created by: Ned Gulley

Tags matrices, 17x17

1

Solution

125

Size

1

Solution

125

Size

Problem 514. Spot the rectangle (Part 2)

Created by: Ned Gulley

Tags matrices, 17x17

1

Solution

145

Size

1

Solution

145

Size

Problem 579. Spiral In

Created by: Nicholas Howe

Tags recursion, matrix spiral

2

Solutions

308

Size

2

Solutions

308

Size

Problem 591. Create a patchwork matrix

Created by: Nicholas Howe

Tags matrix assembly

1

Solution

64

Size

1

Solution

64

Size

Problem 742. Symmetric matrix

Created by: Aurelien Queffurust

Tags symmetric

2

Solutions

67

Size

2

Solutions

67

Size

Problem 761. Create a matrix X, where each column is a shifted copy of the vector v

Created by: Julio

Tags matrix

1

Solution

34

Size

1

Solution

34

Size

Problem 943. "mirror" matrix

Created by: Grzegorz Knor

Tags matrix manipulation, matrix

3

Solutions

54

Size

3

Solutions

54

Size

Problem 985. Make a Star Pyramid

Created by: HITESH TRIVEDI

Tags triangle, pyramid, star

1

Solution

49

Size

1

Solution

49

Size

Problem 1053. Create a Multiplication table matrix...

Created by: Pranav

Tags matrix, table

1

Solution

39

Size

1

Solution

39

Size

1 – 50 of 127