| Tags | data-structures array-manipulation skill/java_intermediate |
| Hard Prerequisites | |
| IMPORTANT: Please review these prerequisites, they include important information that will help you with this content. | |
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| Soft Prerequisites |
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This project assumes you have gone through the reading for both data structures as well as collection, but for a quick recap for the purpose of this project:
Java has a collection framework that gives us a list of classes which help us efficiently deal with objects, one of these is called a dequeue/deque(double-ended queue). A deque is magical because it allows us to add or remove anything from either the front(head) or back(tail) of the queue.
You can implement a Deque by using either a LinkedList of an ArrayDeque class. For example
Deque queue = new LinkedList<>();
or
Deque queue = new ArrayDeque<>();
Now for the FUN part… Project time
intNumber = 9 // Number of integer in the set
subArraySize = 3 // Size of the subArray to consider
queue = 6 2 6 8 3 7 1 4 4 // integer sample
You have to print out the maximum number of unique integers among all possible adjacent subarrays of size subArraySize
Example of the project
Input
intNumber = 9
subArraySize = 3
queue = 6 2 6 8 3 7 1 4 4
Output
3
Explanation
r1 => (6 2 6) = Has 2 unique numbers
r2 => (2 6 8) = Has 3 unique numbers
r3 => (6 8 3) = Has 3 unique numbers
r4 => (8 3 7) = Has 3 unique numbers
r5 => (3 7 1) = Has 3 unique numbers
r6 => (7 1 4) = Has 3 unique numbers
r7 => (1 4 4) = Has 2 unique numbers
So the highest number of unique integer in a subArray is 3
If your code is correct it should return these outputs for these inputs
Input #1
intNumber = 8
subArraySize = 4
queue = 2 2 2 2 2 2 2 2
Output
1
Input #2
intNumber = 10
subArraySize = 3
queue = 7 5 5 7 5 5 7 5 5 6
Output
2
HAVE FUN!!