PPA-2

Question

Accept a positive integer as input and print the digits present in it from left to right. Each digit should be printed as a lower case word on a separate line. How would you use dictionaries to solve this problem?

Hint

It is good to retain the input as a string. A dictionary can be used to map each number to its corresponding word. An incomplete table is given for your reference:

Key	Value
0	zero
1	one
2	two

Can you create the dictionary using this table and complete the code?

Solution

We just need to iterate through the characters in the input and use the dictionary appropriately. Note the way in which the dictionary has been formatted: each key is written on a separate line. This has been done to improve readability.

mapper = {
    '0': 'zero',
    '1': 'one',
    '2': 'two',
    '3': 'three',
    '4': 'four',
    '5': 'five',
    '6': 'six',
    '7': 'seven',
    '8': 'eight',
    '9': 'nine'
}

num = input()

for digit in num:
    print(mapper[digit])

Video Solution