Rust Coding Practice

Solve Count Factor Pairs using Rust Language

Solve Count Factor Pairs using Rust to enhance your skills with rust coding practice , master coding concepts, and prepare for interviews with practical exercises and detailed solutions.

Count Factor Pairs

Difficulty : Easy

Categories :

  • Mathematics

Given an array of positive integers arr, find the count of factor pairs for each number. A factor pair of a number n is a pair (a,b) where a * b = n. Order matters in the pair, so (a,b) and (b,a) are considered different if a ≠ b.

Constraints:

  • 1 ≤ arr.length ≤ 10^4
  • 1 ≤ arr[i] ≤ 10^5
  • Return results in the same order as input array

Examples:

Input: arr = [12,8]
Output: [6,4]
Explanation: 
For 12, factor pairs are: (1,12), (12,1), (2,6), (6,2), (3,4), (4,3)
For 8, factor pairs are: (1,8), (8,1), (2,4), (4,2)
Input: arr = [16,7,9]
Output: [5,2,3]
Explanation:
For 16: (1,16), (16,1), (2,8), (8,2), (4,4)
For 7: (1,7), (7,1)
For 9: (1,9), (9,1), (3,3)

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Arrays A collection of elements stored in contiguous memory locations, allowing efficient random access and manipulation.

Linked Lists A linear data structure where each element (node) points to the next, offering dynamic memory allocation and efficient insertions/deletions.

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Graphs A collection of nodes (vertices) connected by edges, representing relationships, widely used in networking, routing, and social networks.

Dynamic Programming An optimization technique that solves problems by breaking them into overlapping subproblems and storing their results.

Backtracking A problem-solving method that explores all possibilities recursively, backtracking when a solution is not feasible.

Sorting Algorithms Techniques for arranging elements in a specific order, such as quicksort, mergesort, and bubble sort, essential for data organization.

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Mathematics A field of study involving numbers, calculations, and logical reasoning, forming the foundation for algorithms and problem-solving.

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