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Grokking the Coding Interview Patterns in Go

Solution: Longest Subsequence With Limited Sum

Explore how to solve the longest subsequence problem by sorting the array, building prefix sums, and applying binary search to quickly find subsequences with sums not exceeding query values. Understand the step-by-step algorithm and its time and space complexity to improve your coding interview skills.

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Statement

You are given an integer array, nums, of length n, and an integer array, queries, of length m.

For each element in queries, determine the maximum number of elements that can be selected from nums to form a subsequenceA subsequence is formed by removing zero or more elements from the array without changing the order of the remaining elements. such that the sum of the selected elements is less than or equal to the query value.

Return an array answer of length m, where answer[i] represents the size of the largest subsequence of nums whose sum is less than or equal to queries[i].

Constraints

  • n ==== nums.length

  • m ==== queries.length

  • ...