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Algorithms for Coding Interviews in Python

Solution: Nested Loop With Multiplication (Intermediate)

This review provides a detailed analysis of the different ways to solve the Nested Loop with Multiplication in an advanced problem.

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Solution

Python 3.5
n = 10  # can be anything, this is just an example
sum = 0
pie = 3.14
for var in range(1, n, 3):
    j = 1
    print(pie)
    while j < n:
        sum += 1
        j *= 3
print(sum)  # O(1)

  • Outer Loop: 1+4+7+10+⋯+n=n31+4+7+10+\cdots+n = \frac{n}{3} ...

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