Jean-Marie Sainthillier

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251 – 300 of 3,201

Problem 47013. Swap

Created by: Payam Morsali

Tags swap

1

Solution

29

Size

1

Solution

29

Size

Problem 46853. Swap rows

Created by: Payam Morsali

Tags swap

1

Solution

22

Size

1

Solution

22

Size

Problem 45412. Determina el número de cifras de un número

Created by: Lucía Honrubia Fernández

Tags math, number, digit

1

Solution

14

Size

1

Solution

14

Size

Problem 46105. Find sum of numbers on the cornice of a matrix.

Created by: Riccardo Consolo

Tags vectors, matrices, vector

1

Solution

31

Size

1

Solution

31

Size

Problem 47008. NaN

Created by: Payam Morsali

Tags matrix

1

Solution

10

Size

1

Solution

10

Size

Problem 47028. Size

Created by: Payam Morsali

Tags szie

1

Solution

10

Size

1

Solution

10

Size

Problem 50801. Find x rows where the sum of the numbers is the maximum

Created by: Szász Botond

Tags x, m

2

Solutions

19

Size

2

Solutions

19

Size

Problem 46117. Test approximations of the prime counting function

Created by: ChrisR

Tags special functions

1

Solution

112

Size

1

Solution

112

Size

Problem 48075. Play PRIMEGAME

Created by: ChrisR

Tags primes, sequence, conway

2

Solutions

104

Size

2

Solutions

104

Size

Problem 47950. Test the generalized Legendre conjecture

Created by: ChrisR

Tags primes, conjecture

1

Solution

54

Size

1

Solution

54

Size

Problem 46594. Create a sequence of primes p such that p > n π(p)

Created by: ChrisR

Tags primes, sequence

2

Solutions

37

Size

2

Solutions

37

Size

Problem 46087. Investigate the frequency of last non-zero digits of primorials

Created by: ChrisR

Tags primes, number theory, primorial

2

Solutions

93

Size

2

Solutions

93

Size

Problem 46016. Determine digits of the Copeland-Erdos constant

Created by: ChrisR

Tags numbers, number theory

1

Solution

24

Size

1

Solution

24

Size

Problem 46099. Identify full reptend primes

Created by: ChrisR

Tags primes, number theory

1

Solution

85

Size

1

Solution

85

Size

Problem 46701. Compute the nth Naerogahtyp emirp

Created by: ChrisR

Tags primes, pythagoras

1

Solution

112

Size

1

Solution

112

Size

Problem 49738. Determine whether a prime is Pythagorean

Created by: ChrisR

Tags primes, pythagoras, number theory

1

Solution

25

Size

1

Solution

25

Size

Problem 50997. Sum of series IX

Created by: Szász Botond

Tags n

1

Solution

16

Size

1

Solution

16

Size

Problem 50987. Sum of series VIII

Created by: Szász Botond

Tags n

1

Solution

17

Size

1

Solution

17

Size

Problem 43738. Negative without '-'

Created by: JD

Tags subtraction

8

Solutions

15

Size

8

Solutions

15

Size

Problem 46676. List the erauqs

Created by: ChrisR

Tags sequences, strings

1

Solution

49

Size

1

Solution

49

Size

Problem 45964. Compute the nth Pythagorean prime

Created by: ChrisR

Tags primes, pythagoras, number theory

2

Solutions

57

Size

2

Solutions

57

Size

Problem 46582. Find jumping medalists

Created by: ChrisR

Tags primes, sorting, number theory

5

Solutions

108

Size

5

Solutions

108

Size

Problem 46624. List the emirps

Created by: ChrisR

Tags sequences, primes

2

Solutions

39

Size

2

Solutions

39

Size

Problem 45158. Calculate the average value of the elements in the array

Created by: Nhat Lam Nguyen

Tags calculate the average value of the elements in the array

2

Solutions

12

Size

2

Solutions

12

Size

Problem 45162. Double all elements in the array

Created by: Nhat Lam Nguyen

Tags duplicate all elements in the array

1

Solution

12

Size

1

Solution

12

Size

Problem 50912. Draw a '0' in a one matrix!

Created by: Szász Botond

Tags x

1

Solution

47

Size

1

Solution

47

Size

Problem 45833. Triangle Numbers (★★)

Created by: Anirban Pal

Tags vector

1

Solution

12

Size

1

Solution

12

Size

Problem 45845. Create times-tables (★★★)

Created by: Anirban Pal

Tags matrix

1

Solution

17

Size

1

Solution

17

Size

Problem 45394. Count the number of folds needed to pack a large sheet

Created by: Karl Ezra Pilario

Tags max, min, loops

1

Solution

50

Size

1

Solution

50

Size

Problem 44683. Perfect Square

Created by: Dyuman Joshi

Tags numbers

3

Solutions

19

Size

3

Solutions

19

Size

Problem 49587. Matrix Pattern 1

Created by: Doddy Kastanya

Tags easy, matrix, pattern

1

Solution

21

Size

1

Solution

21

Size

Problem 49577. Find the density of non-zero values

Created by: N Raghunadh

Tags matrix

1

Solution

17

Size

1

Solution

17

Size

Problem 45364. Sum of series

Created by: Asif Newaz

Tags basic, easy, series

1

Solution

18

Size

1

Solution

18

Size

Problem 44891. Invert a 3D rigid-body transformation

Created by: Peter Corke

Tags inverse, se(3), rigid-body motion

1

Solution

12

Size

1

Solution

12

Size

Problem 47250. Find Logic 7

Created by: Dev Gupta

Tags logic, cody, contest

1

Solution

18

Size

1

Solution

18

Size

Problem 44248. Mastermind V: Optimal Solver - average number of guesses

Created by: LY Cao

Tags puzzle, mastermind

5

Solutions

72

Size

5

Solutions

72

Size

Problem 44239. Mastermind IV: Optimal Solver - max of 5 guesses

Created by: Richard Zapor

Tags logic, puzzle, optimal

1

Solution

225

Size

1

Solution

225

Size

Problem 44237. Mastermind II: Solve in 8 or less

Created by: Richard Zapor

Tags logic, persistent, puzzle

1

Solution

87

Size

1

Solution

87

Size

Problem 44236. Mastermind I: Solve all 1296 cases

Created by: Richard Zapor

Tags logic, persistent, puzzle

1

Solution

87

Size

1

Solution

87

Size

Problem 49087. Energy Conversion 2

Created by: Doddy Kastanya

Tags easy, conversion, energy

1

Solution

10

Size

1

Solution

10

Size

Problem 49077. Velocity Conversion

Created by: Doddy Kastanya

Tags easy, conversion, velocity

1

Solution

13

Size

1

Solution

13

Size

Problem 49072. Area Conversion 2

Created by: Doddy Kastanya

Tags easy, area, conversion

1

Solution

13

Size

1

Solution

13

Size

Problem 49082. Energy Conversion 1

Created by: Doddy Kastanya

Tags easy, conversion, energy

1

Solution

13

Size

1

Solution

13

Size

Problem 49062. Mass Conversion 2

Created by: Doddy Kastanya

Tags easy, conversion, mass

1

Solution

15

Size

1

Solution

15

Size

Problem 49067. Area Conversion 1

Created by: Doddy Kastanya

Tags easy, area, conversion

1

Solution

13

Size

1

Solution

13

Size

Problem 49057. Mass Conversion 1

Created by: Doddy Kastanya

Tags easy, conversion, mass

1

Solution

21

Size

1

Solution

21

Size

Problem 49052. Temperature Conversion 3

Created by: Doddy Kastanya

Tags easy, conversion, temperature

1

Solution

16

Size

1

Solution

16

Size

Problem 49047. Temperature Conversion 2

Created by: Doddy Kastanya

Tags easy, conversion, temperature

2

Solutions

16

Size

2

Solutions

16

Size

Problem 49037. Temperature Conversion 1

Created by: Doddy Kastanya

Tags easy, conversion, temperature

1

Solution

10

Size

1

Solution

10

Size

Problem 44238. Mastermind III: Solve in 1

Created by: Richard Zapor

Tags logic, puzzle, mastermind

1

Solution

125

Size

1

Solution

125

Size

251 – 300 of 3,201