Question 1

What is the two pointer technique?

Accepted Answer

The two pointer technique is an algorithmic approach that uses two pointers to iterate through a data structure, typically an array or a list, from opposite ends or in a coordinated manner to solve problems efficiently, often in linear time.

Question 2

When should you use the two pointer technique?

Accepted Answer

The two pointer technique is ideal for problems involving sorted arrays or linked lists where you need to find a pair of elements that satisfy a certain condition, or for problems like reversing an array, finding palindromes, or detecting cycles.

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