Tip: This kind of problem that seems incredibly hard usually have a formula (someone already researched this). Find the formula, and solve the problem.
Test for balanced parentheses
count to vector
Matrix to column conversion
Test of Quiz
GJam 2015 Rd1B: Counter Culture
Graceful Graph: Wichmann Rulers
Rubik's Cube: 30 Moves or Less : Cody Size
LMI Twins : Fuzzy Image matching
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