Given two input arrays like this:
Output a string that contains each letter the specified number of times, e.g.:
If given an invalid input (for example, a negative number), output the string 'ERROR'.
Now with improved tests, and reference solution (which I'm sure you can beat).
Times 2 - START HERE
Extract leading non-zero digit
Find perfect placement of non-rotating dominoes (easier)
Create a recurrence matrix for a vector of data
"Look and say" sequence
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