The '-' in line 6 of y_correct for test case 4 should be a '~'.
You are absolutely correct. My apologies for this mistake. I should have tested this, and I thought I had for most testcases.
Which values occur exactly three times?
Find the two-word state names
Rotate input square matrix 90 degrees CCW without rot90
USC Fall 2012 ACM : Code Word Minimum Flipped Bits
Wayfinding 2 - traversing
Wayfinding 3 - passed areas
Mmm! Multi-dimensional Matrix Multiplication
Three grind is shipsstraigt
Return 'on' or 'off'
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