All Questions
10 questions
3
votes
2
answers
1k
views
Counting the number of ways to decode a string
I am working on problem where I need to decode a string:
A message containing letters from A-Z is being encoded to numbers
using the following mapping:
'A' -> 1
'B' -> 2
...
'...
- 499
3
votes
2
answers
593
views
Find the longest sub string of a word after concatenation of given words array
An Array of N words is given. Each word consists of small letters ('a'-'z'). Our goal is to concatenate the words in such a way as to obtain a single word with longest possible substring composed of ...
- 31
1
vote
1
answer
500
views
Reinterpreting a string, treating < as a backspace character
I've come up with a solution to this coding challenge using recursion. In summary, the input is a string where the < symbol represents a backspace (up to 1 ...
- 369
1
vote
4
answers
3k
views
Split a long string using recursive function
I have executed a program which reads long string and divide the string on basis of specified input.
Well I am getting the correct output but would try it to be more efficient and readable.
Opinions ...
- 155
4
votes
1
answer
304
views
String permutations
So I have tried the famous string permutation algorithm.
Example for those who are not familiar with the algorithm:
ABC -> ...
- 143
3
votes
2
answers
2k
views
Longest repeating and non-overlapping substring
Given a string find the length of longest repeating non-overlapping substring in it. In other words, find 2 identical substrings of maximum length which do not overlap.
Examples:
Input : str = "...
3
votes
2
answers
3k
views
Non-Contiguous Substrings
Problem:
A non-contiguous substring of string \$s\$ is a sequence of \$k \geq 0\$ characters in \$s\$, in the order in which they occur in \$s\$. For instance, the set of all non-contiguous ...
- 139
2
votes
3
answers
732
views
To check if a string C is an interleaving of A and B Code
This is my code to check if a string C is an interleaving of Strings A and B. Please suggests optimizations, and where I can improve.
...
- 33
4
votes
1
answer
801
views
Printing all strings in a Boggle board
I am trying to print all the strings given in a N x N Boggle board. Its basically a N x N scrabble-like board where words can be made from a position - horizontally, vertically and diagonally.
Here ...
- 143
1
vote
1
answer
3k
views
Recursion to map phone number to strings
I am trying to solve the following via recursion: In a phone we have each digit mapped to a number.
Example:
...
- 627