Leetcode Problem 281. Zigzag Iterator
Leetcode Solutions
Queue of Pointers Approach
- Initialize a queue to store iterators for non-empty input vectors.
- For
next(), pop an iterator from the queue, retrieve the current element, and move the iterator to the next element. - If the popped iterator still has elements, push it back to the queue.
- For
hasNext(), check if the queue is not empty.
Two-Pointers Approach
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