Question

Question regarding python programming. What does g(31415927) return, for the following function definition? def g(x): (q,d) = (1,0) while q <= x: (q,d) = (q*10,d+1) return(d)

Answer 1

8, since we are checking when 10^d <=31415927 which is when d is 7.

Since we multiply q by 10 from 1 every time till it's smaller than x and the pair the function forms is (10^d,d) d from 0 till when it is greater than x, and line shows we are checking for 10^d.

Answer 2

Given:

g(31415927)

( q, d ) = ( 1, 0 )

Condition:  

q <= x

Then,

( q , d ) = ( q * 10, d + 1 )

Solution:

The loop returns a value if q > 31415927

When d = 8,

The value of q = 100000000 and so q > 31415927

Hence,  The function returns 8.

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