All Questions
3 questions
13
votes
3
answers
20k
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Counting permutations without repetitions for a number or a string
Can I make the following code faster with minor modifications? It times out on CodeWars website.
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- 781
6
votes
2
answers
7k
views
Making the same amount from different combinations of coins (top-down approach)
I was reading a typical interview question found here. Given an amount and a list of denominations, count the number of possible ...
6
votes
1
answer
6k
views
Letter Combinations of a Phone Number
I was asked to code a solution in Python in 15 mins. Print all possible word combinations for a given phone number. Numbers 0 and 1 will not be part of the phone number, the numbers can be repeated, ...
- 63