What is the difference between an external iterator and an internal iterator?
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Answer / Anjali Devi
"External iterators are a type of iterator that operates on containers outside of their implementation, allowing them to be used with different types of data structures without requiring changes to the code. They have access only to the container's elements and no knowledge of its internal representation.nnInternal iterators, on the other hand, are a type of iterator that has direct access to the container's implementation details, such as pointers or references to the container's data structure. This can lead to more efficient iteration but also means they are not portable across different container types."
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