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
Twins in a Window
Back to basics 6 - Column Vector
Sort numbers by outside digits
Find the maximum number of decimal places in a set of numbers
Dick Van Dyck?
letter yes yes & letter no no
Dancing with wolves?
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