Problem 38. Return a list sorted by number of occurrences

Solution 1914049

Submitted on 28 Aug 2019 by Ethan Zhang

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Test	Status	Code Input and Output
1	Pass	x = [1 2 2 2 3 3 7 7 93] y_correct = [2 3 7 1 93]; assert(isequal(popularity(x),y_correct)) x = 1 2 2 2 3 3 7 7 93
2	Pass	x = [-1 19 20 -1 -1 87 19 34 19 -1 21 87 20 10 20 34 19 -1]; y_correct = [-1 19 20 34 87 10 21]; assert(isequal(popularity(x),y_correct))

Test

Status

Code Input and Output

Pass

x = [1 2 2 2 3 3 7 7 93] y_correct = [2 3 7 1 93]; assert(isequal(popularity(x),y_correct))

x = 1 2 2 2 3 3 7 7 93

Pass

x = [-1 19 20 -1 -1 87 19 34 19 -1 21 87 20 10 20 34 19 -1]; y_correct = [-1 19 20 34 87 10 21]; assert(isequal(popularity(x),y_correct))