Cody

# Problem 53. Duplicates

Solution 1925076

Submitted on 7 Sep 2019
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### Test Suite

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

ans = 1×1 cell array {'aa'} ans = 1×1 cell array {'bb'} ans = 1×1 cell array {'aa'} ans = 1×1 cell array {'aa'} dups = 1×1 cell array {1×1 cell} ans = 1×1 cell array {'aa'} ans = 1×1 cell array {'aa'}

Error using char Cell elements must be character arrays. Error in duplicates (line 19) if char(strs(i)) == char(dups(k)) Error in Test1 (line 3) result = duplicates(strs);

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

ans = 1×1 cell array {'10'} ans = 1×1 cell array {'11'} ans = 1×1 cell array {'10'} ans = 1×1 cell array {'12'} ans = 1×1 cell array {'11'} ans = 1×1 cell array {'12'}

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

ans = 1×1 cell array {'zzz'} ans = 1×1 cell array {'zzz'} dups = 1×1 cell array {1×1 cell} ans = 1×1 cell array {'zzz'} ans = 1×1 cell array {'zzz'}

Error using char Cell elements must be character arrays. Error in duplicates (line 19) if char(strs(i)) == char(dups(k)) Error in Test3 (line 3) result = duplicates(strs);

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

ans = 1×1 cell array {'a'} ans = 1×1 cell array {'b'} ans = 1×1 cell array {'a'} ans = 1×1 cell array {'c'} ans = 1×1 cell array {'a'} ans = 1×1 cell array {'b'} ans = 1×1 cell array {'a'} ans = 1×1 cell array {'d'} ans = 1×1 cell array {'a'} ans = 1×1 cell array {'c'} ans = 1×1 cell array {'b'} ans = 1×1 cell array {'c'} ans = 1×1 cell array {'b'} ans = 1×1 cell array {'b'} dups = 1×1 cell array {1×1 cell} ans = 1×1 cell array {'b'} ans = 1×1 cell array {'d'} ans = 1×1 cell array {'b'} ans = 1×1 cell array {'c'} ans = 1×1 cell array {'c'} ans = 1×1 cell array {'b'} ans = 1×1 cell array {'c'} ans = 1×1 cell array {'d'} ans = 1×1 cell array {'c'} ans = 1×1 cell array {'c'}

Error using char Cell elements must be character arrays. Error in duplicates (line 19) if char(strs(i)) == char(dups(k)) Error in Test4 (line 3) result = duplicates(strs);

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