All Questions
6 questions
10
votes
4
answers
3k
views
First non-repeating Character, with a single loop in Python
I recently tried to solve the first non-repeating character problem. Please tell me if my solution is valid. I'm aiming for O(n) with a single loop.
My thinking is, it would be easy to tell you what ...
- 203
7
votes
2
answers
827
views
Number of occurrences of strings in array
This is a Hackerrank problem (https://www.hackerrank.com/challenges/sparse-arrays/problem).
We're given an array of strings and an array of queries, and have to return an array of the number of ...
- 1,159
4
votes
1
answer
178
views
Count the number of words and lines that have multiple vowels
I am working on this coding problem:
Count the number of words & lines that have more than X vowels for every Y words in every Z line.
Basically the input string has multiple lines and I need to ...
- 143
1
vote
1
answer
486
views
Removing a specific character and its neighbors from a string
Assume we have an string that contains the character 'c'. This character can be located anywhere within the string. The exercise ...
- 501
12
votes
2
answers
140
views
Re-arranging an obfuscated address
I'm getting address (physical address, not digital) input that's obfuscated, and looks like the following:
The plaintext version:
...
- 12k
4
votes
1
answer
3k
views
Lingo game using Python
You guess a word, and if its letter(s) is in the same spot as a hidden word's, you add [] around the letter. If it's in the hidden word, but not in the same spot, you add()).
As of now, I have a ...
- 41