I have a few sets, say 5 of them
{1,2,3}
{2,4}
{1,2}
{4,5}
{2,3,5}
Here, I need to choose at least 3 elements from any three sets(One element per set). Given that if an element is already selected, then it cannot be selected again.
Also check if any solution exists or not.
Eg
set {1,2,3} -> choos...
In this challenge, you will be "reversing" the alphabet or swapping a-z with z-a. This is commonly known as the Atbash cypher.
Because this transformation makes the output look like some foreign language, your code will need to be as short as possible.
Examples
abcdefghijklmnopqrstuvwxyz
zyx...
Background
A classical logic gate is an idealized electronic device implementing a Boolean function, i.e. one that takes a certain number of Boolean inputs and outputs a Boolean. We only consider two-input logic gates in this challenge.
There are \$2^{2 \times 2} = 16\$ distinct two-input logic g...
Your input is a non-empty set of non-empty sets of positive integers. For example:
{{1}, {2, 3}, {2,4}, {1,4}}
Your task is to output the maximal number of elements that can be picked from the sets with the following conditions:
You can only pick at most 1 element from a set
You can't pick the ...
You will be given as input a non-empty list of positive integers. For example:
[1,2,2,2,1]
You want to produce a ragged list as output which has this as its "depth map". This list should have the same elements in the same order but each element n should be at the depth equal to its value.
[1,[...
