Class6-Python-Module-Week4

1. Password

Write a Python program to check the validity of a password (input from users)

Rules :

At least 1 letter between [a-z] and 1 letter between [A-Z]
At least 1 number between [0-9].
At least 1 character from [$#@].
Minimum length 6 characters.
Maximum length 16 characters.

If password is not valid throw ValueError with a proper error message for each rule. If the password is valid print a success message. Use some from raise, except, assert, else and finally keywords.

2. Dice Percentage

Create an array with 6 elements named dice. Fill this array with the value zero. Generate a random number with a value between 1 and 6 (just like a dice) in a repetition 5000 times.

If the value is 1, increase the element 0 in the array by 1, the same applies to the values 2, 3, 4, 5 and 6. The dice[0] element indicates the number of times value 1 has occurred. Or in general: dice[x-1] indicates the number of times that x has been thrown.

At the end of the repetition, print the contents of the array as percentages with 2 decimal places. For example; "Percentage of throws of value 3 = 16.28%"

3. Basic Import

Create a Python module called my_dice.py and export the code you wrote in question 2 into a function called rollDice(number).

Changes:

Instead of repetition of 5000 times, makes a repetition of times of given number variable.
Instead of printing, return the array of percentages.

Then create a new module called main.py. Gets an input from the user using "Enter repetition number: ". Then call rollDice method with this user input. Lastly, print each probability. E.g. "The probability of 0 is 16.20"

4. The Greatest Common Divisor

As a user, I want to use a program which can calculate the greatest common divisor (GCD) of my inputs.

Acceptance Criteria:

Ask user the enter the number of inputs (n).
Ask user to enter n input numbers one by one.
Use try/except blocks to verify input entries and warn the user for Nan or non numerical inputs.
Calculate the greatest common divisor (GCD) of n numbers.
Use gcd function in module of math.

Hackerrank Questions