Array%
Intermediate%level%Questions:%
1.
Find%the%Union%and%Intersection%of%the%two%sorted%arrays.%
[practice here: https://practice.geeksforgeeks.org/problems/union-of-two-arrays/0 ]
2.
Write%a%program%to%cyclically%rotate%an%array%by%one.%
[Practice here: https://practice.geeksforgeeks.org/problems/cyclically-rotate-an-array-by-
one/0 ]
3.
You%are%given%a%list%of%n-1%integers%and%these%integers%are%in%the%range%
of%1%to%n.%There%are%no%duplicates%in%the%list.%One%of%the%integers%is%
missing%in%the%list.%Write%an%efficient%code%to%find%the%missing%integer.%
[Practice here: https://practice.geeksforgeeks.org/problems/missing-number-in-array/0 ]
4. F
ind%all%pairs%on%integer%array%whose%sum%is%equal%to%given%number
.
[Practice here: https://practice.geeksforgeeks.org/problems/count-pairs-with-given-sum/0 ]
5. F
ind%duplicates%in%an%array.
[Practice here : https://practice.geeksforgeeks.org/problems/find-duplicates-in-an-array/1 ]
6. S
ort%an%Array%using%Quicksort%algorithm.
[ Follow link: https://www.geeksforgeeks.org/quick-sort/ ]
7. F
ind%common%elements%in%three%sorted%arrays
[Practice here: https://practice.geeksforgeeks.org/problems/common-elements/0 ]
8. F
ind%the%first%repeating%element%in%an%array%of%integers.
[Practice here: https://practice.geeksforgeeks.org/problems/first-repeating-element/0 ]
9. F
ind%the%first%non-repeating%element%in%a%given%array%of%integers.%
[Solution: https://www.geeksforgeeks.org/non-repeating-element/ ]
