A pair of physicists toss a coin n times each.
What is the probability that they tossed the same number of heads?
Input: N % number of tosses
Test Suite will round to 6 places
This fails for test case 4 even though it is mathematically correct--it gives 0.27343749999999994 instead of 0.2734375, while the test suite asks for 0.273438; it seems as though a fair test generally has to be of the form abs(y-y_correct)<tol*abs(y_correct); rounding to some number of decimal places always allows for possibilities like this. (Not a complaint, just a point of interest.)
Flip the main diagonal of a matrix
Permute diagonal and antidiagonal
Next Lower Power of B
Side of a rhombus
Skyscrapers - Puzzle
Rubik's Mini Cube: Solve Randomized Cube in 11 Moves or Less; Score is by Time (msec)
Hamming Weight - Fast
GJam 2012 Qualifier: Tongues
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