Josephus Problem in Python

Published on 28 April 2022 (Updated: 02 February 2023)

Josephus Problem in Python

Welcome to the Josephus Problem in Python page! Here, you’ll find the source code for this program as well as a description of how the program works.

Current Solution

import sys  # for receiving inputs from command line

def josephus(n, k): # main routine
  if (n == 1):
    return 1
  else:
    return (josephus(n - 1, k) + k-1) % n + 1

n, k = 0, 0  # initialising the values 

try:
  n = int(sys.argv[1])  # input from CLI
  k = int(sys.argv[2])  # input from CLI

except:
  print("Usage: please input the total number of people and number of people to skip.")
  exit(1)

if (n <= k):
    print("Usage: please input the total number of people and number of people to skip.")
    exit(1)

print(josephus(n, k))

Josephus Problem in Python was written by:

If you see anything you’d like to change or update, please consider contributing.

How to Implement the Solution

No ‘How to Implement the Solution’ section available. Please consider contributing.

How to Run the Solution

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