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Grokking the Coding Interview Patterns in Go

Two Sum

Explore how to solve the Two Sum problem by identifying two indices whose values add up to a target number. This lesson helps you implement a linear-time solution in Go, improving your ability to identify patterns and optimize coding interview problems.

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Statement

For the given array of integers arr and a target t, you have to identify the two indices that add up to generate the target t. Moreover, you can’t use the same index twice, and there will be only one solution.

Note: We will assume that the array is zero-indexed and the output order doesn’t matter.

Constraints:

  • 2≤2 \leq arr.length ≤103\leq 10^3
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