I'm sure some smarter person will find a faster method!
My solution passed on the third try; there's definitely some CPU timing mismatch going on!
Agreed, some of my solutions passed only part of the time.
Hi, just wondering whether someone could help me out here. I was expanding the testset, and I was trying x = [1:10 2:11] but I got an error "Error: Dimensions of matrices being concatenated are not consistent." I then tried x = [1 2 3 4], and x = 1:4; but got the same error. On my version of MATLAB all these statements work perfectly and I believe they are basic MATLAB syntax. x = [1; 2; 3; 4] worked fine however. In the end I had to transpose the matrices.
it even cannot pass on my own computer, but....
Jeremy, please increase the size of the third case. Performance tests are not made with small samples (unless they are run several times)...because many other factors may affect the time (alternating processes, server overload, memory usage, etc). A regular CPU is always multi-tasking.
About your problem with arrays, try adding a comma between lists.
My code did well for large samples, but I am sorry for the last test case. The sample is too small for performance tests, and not even using a lookup table was as fast as unique.
It was too tempting...
I thought I was being original by trying this. Guess not... :-(
Clever :), hadn't thought of that!
thanks for the hint!
given 3 sides, find area of this triangle
Right and wrong
Make a random, non-repeating vector.
Matrix with different incremental runs
Who is the smartest MATLAB programmer?
Penny flipping - calculate winning probability (easy)
Calculate the probability that at least two people in a group share the same birthday.
It's race time again! Write a function that is at least twice as fast as the test suite call of repmat().
Create matrix of replicated elements
Find the treasures in MATLAB Central and discover how the community can help you!
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
You can also select a web site from the following list:
Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location.
Contact your local office