Given a number, print words for individual digits. It is not allowed to use if or switch.
Input: n = 123 Output: One Two Three Input: n = 350 Output: Three Five Zero
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The idea is to use an array of strings to store digit to word mappings. Below are steps.
Let input number be n.
- Create an array of strings to store digit to word mapping.
- Create another array digits to store individual digits of n.
- Traverse digits of n and store them in digits. Note that standard way of traversal by repeated storing n%10 and doing n = n/10, traverses digits in reverse order.
- Traverse the digits array from end to beginning and print words using the mapping created in step 1.
Below is the implementation of above idea.
Three Five Zero
Thanks to Utkarsh Trivedi for suggesting above solution.
Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above.
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