Even though this problem is simple, it would be helpful to expand the test suite to prevent gaming the system.
This user (ALBERT ALEXANDER STONIER) appears to have gamed the system, with fraudulent "likes" of this unremarkable solution submitted by 'sock-puppet' accounts. —DIV
Which values occur exactly three times?
04 - Scalar Equations 2
Area of a triangle
Rotate a matrix for 180 degree
Remove the Zero
Is It a Palindrome?
Remove and Sort
Where is she?
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