Problem 52462. Easy Sequences 1: Find the index of an element
@Ramon, if you are submitting a question on Cody for everybody to solve, it is recommended you put atleast 3 test suites, mostly so that it encourages people to learn and not hard code solutions.
Thanks, @Dyuman. There are now 4 test suites.
-a+(1-(-1)^(n+1))/2 will be negative in the 4th test. I believe it should be: index(a-(1-(-1)^(n+1))/2).
This works fine in my MATLAB software. But not here.
Any comments, please?
function n = index(a)
for idx = 1:1000
b = idx*((-1)^(idx^3+1));
Because you are not doing what the question is asking
I think the last test case is wrong
Rahul Gulia, in the last test, there will be numbers greater than 1000. And the last test is not wrong. Just remember that indexes are always positive (I had trouble with that also, we are so focused on the sequence that we forget that indexes can't be negative).
Solution CommentsShow comments
Problem Recent Solvers40
Mysterious digits operation (easy)
More from this Author116
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!Start Hunting!