Problem 2699. From a given cell array of strings, extract the non-unique strings.
We are given a cell array of strings C. From this cell array we require to extract the subset of non-unique strings, returning the results as a column vector.
For example, if C = {'A', 'B', 'C', 'A', 'B'}, then the strings 'A' and 'B' are repeated, so the result should be {'A'; 'B'}. The order of occurrence of the strings should be preserved, so {'B'; 'A'} would not be an acceptable solution. The order of appearance of the strings is defined using the column-major format. For example, if C = {'Jack', 'Bob'; 'Dave', 'Amanda'} then the order of the strings is 'Jack', 'Dave', 'Bob', 'Amanda'.
Solution Stats
Problem Comments
Solution Comments
Show commentsProblem Recent Solvers32
Suggested Problems
-
2149 Solvers
-
Given a window, how many subsets of a vector sum positive
846 Solvers
-
359 Solvers
-
Mirror Image matrix across anti-diagonal
179 Solvers
-
Converting numbers back from extended form
114 Solvers
More from this Author4
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!