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
Make a checkerboard matrix
Renaming a field in a structure array
Program an exclusive OR operation with logical operators
Accessing elements on the diagonal
Predicting life and death of a memory-less light bulb
cos for boss?
Volume of this donut
give nth decimal place of pi
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