Xiaoyi Chin

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Problem 1940. Decimation - Optimized for speed

Created by: James

Tags speed optimization, carnage maximus, efficiency

4

Solutions

93

Size

4

Solutions

93

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Problem 1092. Decimation

Created by: James

Tags decimate, there can be only one, carnage maximus

7

Solutions

58

Size

7

Solutions

58

Size

Problem 1401. Implement a bubble sort technique and output the number of swaps required

Created by: Robert Weinberg

Tags sort, bubble sort, bubblesort

2

Solutions

15

Size

2

Solutions

15

Size

Problem 1203. Reference Index Number

Created by: Nicholas Howe

Tags indexing

1

Solution

16

Size

1

Solution

16

Size

Problem 1678. Count consecutive 0's in between values of 1

Created by: Chris E.

Tags consuctive 0's, counting 0

9

Solutions

33

Size

9

Solutions

33

Size

Problem 1779. Oh Zero Zero Zero!!!

Created by: Chris E.

Tags sequences, pattern match, pattern finding

5

Solutions

28

Size

5

Solutions

28

Size

Problem 972. Set a diagonal

Created by: Nicholas Howe

Tags indexing, diagonals

19

Solutions

21

Size

19

Solutions

21

Size

Problem 1632. Calculate the Number of Sign Changes in a Row Vector (No Element Is Zero)

Created by: Shahid Ali Murtza

Tags sign changes

6

Solutions

14

Size

6

Solutions

14

Size

Problem 980. Unique values without using UNIQUE function

Created by: Aurelien Queffurust

Tags unique, stable

6

Solutions

19

Size

6

Solutions

19

Size

Problem 1699. Find last zero for each column

Created by: Matthew Eicholtz

Tags indexing, matrix manipulation

18

Solutions

14

Size

18

Solutions

14

Size

Problem 1430. Create an n-by-n null matrix and fill with ones certain positions

Created by: Daniel Pereira

Tags indexing, matrix, sparse

1

Solution

16

Size

1

Solution

16

Size

Problem 1273. Max index of 3D array

Created by: Youssef Khmou

Tags maximum

4

Solutions

24

Size

4

Solutions

24

Size

Problem 1927. Find nth maximum

Created by: Awadhesh Srivastava

Tags number theory, n th max

3

Solutions

15

Size

3

Solutions

15

Size

Problem 1366. Finding peaks

Created by: Selvaraaju Murugesan

Tags basic matlab

1

Solution

21

Size

1

Solution

21

Size

Problem 1786. Create an index-powered vector

Created by: Swapnali Gujar

Tags indexing, power, vector power

2

Solutions

15

Size

2

Solutions

15

Size

Problem 1038. Change the sign of even index entries of the reversed vector

Created by: Selvaraaju Murugesan

Tags vectors, qmf

4

Solutions

21

Size

4

Solutions

21

Size

Problem 1451. Symmetry of vector

Created by: Selvaraaju Murugesan

Tags basic matlab

3

Solutions

14

Size

3

Solutions

14

Size

Problem 888. Create a vector whose elements depend on the previous element

Created by: Aurelien Queffurust

Tags vectorization

16

Solutions

21

Size

16

Solutions

21

Size

Problem 1229. Determine the number of odd integers in a vector

Created by: Jeremy

Tags matlab, vector, matrix

3

Solutions

20

Size

3

Solutions

20

Size

Problem 1193. Insert zeros into vector

Created by: Selvaraaju Murugesan

Tags basic matlab

5

Solutions

20

Size

5

Solutions

20

Size

Problem 1035. Generate a vector like 1,2,2,3,3,3,4,4,4,4

Created by: Binbin Qi

Tags zeros, for, ones

1

Solution

15

Size

1

Solution

15

Size

Problem 645. Getting the indices from a vector

Created by: Doug Hull

Tags indexing, basic matlab, ml101

1

Solution

19

Size

1

Solution

19

Size

Problem 1774. Free passes for everyone!

Created by: Alfonso Nieto-Castanon

Tags matlab, hack, freepass

9

Solutions

9

Size

9

Solutions

9

Size

Problem 885. Create logical matrix with a specific row and column sums

Created by: Amro

Tags matrix, logical, sum

14

Solutions

41

Size

14

Solutions

41

Size

Problem 875. Return a list sorted by number of consecutive occurrences

Created by: Jean-Marie Sainthillier

Tags vectors, indexing

7

Solutions

38

Size

7

Solutions

38

Size

Problem 795. Joining Ranges

Created by: Dirk Engel

Tags sorting, matrix manipulation, numeric inputs

9

Solutions

53

Size

9

Solutions

53

Size

Problem 672. Longest run of consecutive numbers

Created by: James

Tags vectors, consecutive, repeating

6

Solutions

36

Size

6

Solutions

36

Size

Problem 801. Construct an index vector from two input vectors in vectorized fashion

Created by: Christopher

Tags matrix manipulation, vectorization, poor_test_suite

2

Solutions

18

Size

2

Solutions

18

Size

Problem 652. Put two time series onto the same time basis

Created by: Ned Gulley

Tags interpolation, time series

8

Solutions

62

Size

8

Solutions

62

Size

Problem 859. Get the elements of diagonal and antidiagonal for any m-by-n matrix

Created by: Aurelien Queffurust

Tags diagonal, diag, anti-diagonal

13

Solutions

29

Size

13

Solutions

29

Size

Problem 924. intersection of matrices

Created by: Richard

Tags matrix, poor_problem_statement

7

Solutions

13

Size

7

Solutions

13

Size

Problem 555. "Low : High - Low : High - Turn around " -- Create a subindices vector

Created by: Freddy

Tags indexing, colon operator, basic matlab

3

Solutions

18

Size

3

Solutions

18

Size

Problem 856. Getting the indices from a matrix

Created by: Jean-Marie Sainthillier

Tags logical indexing

3

Solutions

19

Size

3

Solutions

19

Size

Problem 830. Fill a zeros matrix

Created by: Aurelien Queffurust

Tags logical operations

7

Solutions

18

Size

7

Solutions

18

Size

Problem 963. We love vectorized solutions. Problem 1 : remove the row average.

Created by: William Smith

Tags speed, vectorized, subtraction

2

Solutions

13

Size

2

Solutions

13

Size

Problem 690. Remove the two elements next to NaN value

Created by: Aurelien Queffurust

Tags nan, meshgrid, binary operation

14

Solutions

23

Size

14

Solutions

23

Size

Problem 584. middleAsColumn: Return all but first and last element as a column vector

Created by: Nicholas Howe

Tags matlab 101, basics

11

Solutions

17

Size

11

Solutions

17

Size

Problem 676. Reindex a vector

Created by: James

Tags handling vectors, indices

9

Solutions

17

Size

9

Solutions

17

Size

Problem 307. First non-zero element in each column

Created by: Julio

Tags matrix, poor_test_suite

5

Solutions

15

Size

5

Solutions

15

Size

Problem 895. Generate N equally spaced intervals between -L and L

Created by: @bmtran (Bryant Tran)

Tags math, wrong_test_suite

2

Solutions

16

Size

2

Solutions

16

Size

Problem 367. Specific Element Count

Created by: @bmtran (Bryant Tran)

Tags counting, sum, occurrences

3

Solutions

19

Size

3

Solutions

19

Size

Problem 589. Matrix indexing with two vectors of indices

Created by: Nicholas Howe

Tags basic, matlab 101, indexing

4

Solutions

16

Size

4

Solutions

16

Size

Problem 532. Return unique values without sorting

Created by: Aurelien Queffurust

Tags unique, sorted

3

Solutions

11

Size

3

Solutions

11

Size

Problem 640. Getting logical indexes

Created by: Doug Hull

Tags indexing, logical indexing, ml101

2

Solutions

11

Size

2

Solutions

11

Size

Problem 576. Return elements unique to either input

Created by: James

Tags vectors, differences, numeric inputs

4

Solutions

17

Size

4

Solutions

17

Size

Problem 824. Set the array elements whose value is 13 to 0

Created by: Aurelien Queffurust

Tags indexing, logical, logical indexing

3

Solutions

13

Size

3

Solutions

13

Size

Problem 528. Find the largest value in the 3D matrix

Created by: Bruce Raine

Tags basic matlab, 3d

2

Solutions

12

Size

2

Solutions

12

Size

Problem 867. Replicate elements in vectors

Created by: Jean-Marie Sainthillier

Tags vectors, indexing, basic matlab

9

Solutions

12

Size

9

Solutions

12

Size

Problem 19. Swap the first and last columns

Created by: Cody Team

Tags math, matlab 101, permutations

8

Solutions

24

Size

8

Solutions

24

Size

Problem 12. Fibonacci sequence

Created by: Cody Team

Tags sequences, fibonacci, siam

7

Solutions

22

Size

7

Solutions

22

Size

1 – 50 of 77