Cody

# Problem 53. Duplicates

Solution 2637790

Submitted on 1 Jul 2020 by 春樹 内糸
This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.

### Test Suite

Test Status Code Input and Output
1   Pass
strs = {'aa','bb','aa','aa'}; correct = {'aa'}; result = duplicates(strs); assert(isempty(setdiff(result,correct)) & isempty(setdiff(correct,result)))

C = 1×2 cell array {'aa'} {'bb'} ic = 1 2 1 1 a_counts = 3 1 idx = 2×1 logical array 1 0 dups = 1×1 cell array {'aa'}

2   Pass
strs = {'10','11','12'}; correct = {}; result = duplicates(strs); assert(isempty(setdiff(result,correct)) & isempty(setdiff(correct,result)))

C = 1×3 cell array {'10'} {'11'} {'12'} ic = 1 2 3 a_counts = 1 1 1 dups = 0×0 empty cell array

3   Pass
strs = {'zzz','zzz','zzz'}; correct = {'zzz'}; result = duplicates(strs); assert(isempty(setdiff(result,correct)) & isempty(setdiff(correct,result)))

C = 1×1 cell array {'zzz'} ic = 1 1 1 a_counts = 3 idx = logical 1 dups = 1×1 cell array {'zzz'}

4   Pass
strs = {'a','b','c','b','d','c'}; correct = {'b','c'}; result = duplicates(strs); assert(isempty(setdiff(result,correct)) & isempty(setdiff(correct,result)))

C = 1×4 cell array {'a'} {'b'} {'c'} {'d'} ic = 1 2 3 2 4 3 a_counts = 1 2 2 1 idx = 4×1 logical array 0 1 1 0 dups = 1×2 cell array {'b'} {'c'}

5   Pass
strs = {}; correct = {}; result = duplicates(strs); assert(isempty(setdiff(result,correct)) & isempty(setdiff(correct,result)))

C = 0×1 empty cell array ic = 0×1 empty double column vector a_counts = 0×1 empty double column vector dups = 0×0 empty cell array

### Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!