[Problems] Summary of Problems Based on Mathematics and Probability

Submitted by heartin on Sat, 11/28/2015 - 20:08

  1. Write methods to implement the multiply, substract and divide operations for integers, using only the add operator.

    • Hint:

      • a + b => a + negate(b)

      • a * b => add b a times

      • x = a / b => a = bx.

  2. Find the kth number such that the only prime factors are 3,5 and 7

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