Work Till You Drop (due 31 Mar 2017)

Vyasa has to complete a programming assignment overnight. He has to write n lines of code before morning. He is dead tired and he tries drinking some black coffee to keep him awake. But each time he drinks a cup of coffee he stays awake for a short amount of time but his productivity goes down by a constant factor k

This is how he plans to write the program. He will write the first v lines of code, then drink his first cup of coffee. Since his productivity has gone down by a factor of k he will write v // k lines of code. He will have another cup of coffee and then write v // k**2 lines of code. He will have another cup of coffee and write v // k**3 lines of code and so on. He will collapse and fall asleep when v // k ** p becomes 0.

Now Vyasa does want to complete his assignment and maximize on his sleep. So he wants to figure out the minimum allowable value of v for a given productivity factor that will allow him to write at least n lines of code before he falls asleep.

Your input file will be called work.txt. Here is a typical file: 

2
7 2
59 9
The first line is T the number of test cases. This will be followed by T lines of input. Each line of input will have two numbers n and k. n is the number of lines of code to write and k is the productivity factor, where 1 ≤ n ≤ 106 and 2 ≤ k ≤ 10.

For each test case your output to the screen will be v lines of code the Vyasa has to write. For the above two test cases, the output will be: 

4
54
You have to modify the binary search algorithm to solve this problem.

You must complete this assignment on your own. You may not acquire from another person or the internet a partial or complete solution to this assignment. You may not show another student your solution to an assignment. You may not have another person (other than the instructor, TAs, or proctors) walk you through the solution. You may only discuss general ideas and approaches with other students but you may not develop code together.

You will submit the file Work.py. We will be looking at good documentation, design, and adherence to coding conventions. Your code must have the following header: 


#  File: Work.py 

#  Description:  

#  Student Name:  

#  Student UT EID:  

#  Course Name: CS 313E

#  Unique Number: 

#  Date Created:

#  Date Last Modified:

Use the Canvas system to submit your Work.py file. We should receive your work by 11 PM on Friday, 31 Mar 2017. There will be substantial penalties if you do not adhere to the guidelines. Remember Python is case sensitive. The name of your file must match exactly what we have specified.