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.)
Which values occur exactly three times?
Make a 1 hot vector
Sum the Digits of a Number
Play Tic Tac Toe : No Losses Allowed
Map all the indices of an Array Indices into a Vector giving Index vs Row and Column
PACMAT 07 - Optimized Ghosts, PAC 2X Ghost Speed, 4 Lives; Interactive Download
Angle between Two Vectors
Text File Read: 64 bit data set
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