For example, chance is 100% for minimum 0 heads when a coin is tossed 7 times.
Chance is 50% for minimum 2 heads when a coin is tossed 3 times.
Chance is 0% for minimum 12 heads when a coin is tossed 11 times.
this problem could use some nontrivial testcases
First N Perfect Squares
Construct a string from letters and counts
Back to basics 8 - Matrix Diagonals
Basics: 'Find the eigenvalues of given matrix
Celsius to Kelvin
count any radix?
Minimum possible M of the maximum side of a triangle of given area A.
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