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.
Add two numbers
High school cafeteria
Generate a vector like 1,2,2,3,3,3,4,4,4,4
How many jokers?
construct matrix with identical rows
Given a 4x4 matrix, swap the two middle columns
Given area find sides
Equal to their cube
Find the logic
find radius of cone
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