All Questions
4 questions
7
votes
5
answers
736
views
String combinations of 0 and 1
I was asked this question in an interview:
Given a string s consisting of 0, 1 and ...
- 499
3
votes
3
answers
12k
views
Letter combinations of phone dial pad number
In preparation for interviews, I have written a solution to this question:
Given a sequence of numbers (34128) and an input map such as a dial
pad on a phone (2->[a,b,c], 3->[d,e,f], 4->[g,h,i]) ...
- 1,997
1
vote
1
answer
2k
views
Print all permutations of a given string in Java
I want to print all permutations of a given string in Java. To do this I create one auxiliary array boolean used[] to check if I have used some character or not.
<...
- 861
5
votes
1
answer
20k
views
Print all possible combinations of size r, from an array of size n
This is my working solution for the following problem: given an array of integers of size n, print all possible combinations of size r.
Before I proceed to the solution, I have the following question:...
- 861