Grokking the Coding Interview: Patterns for Coding Questions
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Solution: Maximum Size Subarray Sum Equals k
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Problem Statement

Given an array of integers nums and an integer k, find the length of the longest subarray that sums to k. If no such subarray exists, return 0.

Examples

Example 1:

  • Input: nums = [1, 2, 3, -2, 5], k = 5
  • Output: 2
  • Explanation: The longest subarray with a sum of 5 is [2, 3], which has a length of 2.

Example 2:

  • Input: nums = [-2, -1, 2, 1], k = 1
  • Output: 2
  • Explanation: The longest subarray with a sum of 1 is [-1, 2], which has a length of 2.

Example 3:

  • Input:

.....

.....

.....

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