An Armstrong number of three digits is an integer such that the sum of the cubes of its digits is equal to the number itself. For example, 153 is an Armstrong number since 1^3 + 5^3 + 3^3 = 153.
Rotate a Matrix
Getting the indices from a matrice
What number has this problem?
Simple date to serial no. conversion
Who invented zero?
find radius of cone
kmph to mps
Given a 4x4 matrix, swap the two middle columns
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