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CodeSignal

Mastering Hashes, Two Pointers, and Additional Algorithms in Ruby

via CodeSignal

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Overview

Explore key programming algorithms involving Hashes, Sets, and two-pointer techniques. This course will boost your skills in optimizing data structures and refining your problem-solving strategies.

Syllabus

  • Unit 1: Complexity Analysis and Optimization in Ruby
    • Calculate Total Points Between Towns in Integerland
    • Finding the Smallest Absolute Difference in an Array
    • Optimized Replacement in Arrays
  • Unit 2: Optimizing Array Comparisons with Ruby Sets
    • Common Characters Extraction Task
    • Check Celestial Body Presence Using Set
    • Movie Recommendation System
  • Unit 3: Optimizing Array Manipulation Using Ruby Hashes
    • String Partition Challenge
    • Breaking Maximum Words in a String
    • Construct a Method to Find Minimum Word Distances in a List
  • Unit 4: Efficient Pair Finding with the Two-Pointer Technique in Ruby
    • Find Chocolate Pairs with Zero Sweetness
    • Maximum Sum Subarray Using Two-Pointer Technique
    • Finding the Longest Subarray with a Given Sum
  • Unit 5: Optimizing Array Processing with Ruby Techniques
    • Find Closest Half in Arrays
    • Identify the Person with the Most Connections within Two Degrees
    • Longest Substring with K Distinct Characters

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