Solve Coding Challenges Across Five Programming Languages — PickAClass
⏱ 2h 30m 📚 25 lessons

Solve Coding Challenges Across Five Programming Languages

Learn core algorithmic patterns and implement efficient solutions using Python, Kotlin, C++, C#, and PHP for technical interview preparation.

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  • 🌐 In English
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About this course

Preparing for coding interviews requires mastering core data structures and algorithms and being able to implement them efficiently. This course provides practical, step-by-step solutions to common foundational coding problems, demonstrating how the same logic is applied and optimized across five popular programming languages. You will gain deep comparative insight into language-specific structures and performance considerations. What you'll learn: * Understand the core principles of common data structures, including arrays, linked lists, hash maps, and stacks. * Apply fundamental algorithmic techniques such as recursion, iteration, two-pointers, and sliding window patterns. * Analyze and calculate the time and space complexity (Big O notation) for various solutions to ensure performance efficiency. * Practice translating algorithmic logic into clean, idiomatic code in Python, C++, C#, Kotlin, and PHP. * Configure local development environments and practice basic testing methodologies for validating solutions. The course begins by establishing foundational concepts and complexity analysis before diving into categorized problem sets. Each challenge is broken down conceptually, followed by a detailed, comparative implementation walkthrough in all five languages. This course is designed for absolute beginners to programming or those with basic knowledge looking to solidify their understanding of algorithms and prepare for entry-level technical assessments. No prior experience with specific data structures or advanced algorithms is required. Start building your portfolio of efficient, multi-lingual coding solutions today.

What you'll get

  • 📜 Certificate of completion
    Add it to your LinkedIn profile
  • 💬 Personal AI tutor
    Stuck on a lesson? Ask your built-in tutor anything, any time.
  • ♾️ Lifetime access
    Come back anytime, no expiry
  • 📱 Phone or computer
    Works anywhere, any device
  • 💸 14-day refund
    No questions asked
  • Short & focused
    2h 30m of practical content

Certificate of completion

Every course you complete on PickAClass issues a credential like this — original, with its own code, verifiable by URL, and detailed about what was actually demonstrated.

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PickAClass
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Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
Solve Coding Challenges Across Five Programming Languages
Skills demonstrated
Behavioral pattern analysis
Foundational
1.2 hrs
Decision-architecture frameworks
Proficient
1.4 hrs
A/B test design
Proficient
1.7 hrs
Behavioral copywriting
Advanced
1.9 hrs
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PickAClass — Name Surname
Solve Coding Challenges Across Five Programming Languages
Page 2 of 2
Performance detail
Coursework summary
Lessons completed 14 / 14
Practice questions 26 / 28
Assignments submitted 4 (avg 4.5 / 5)
Capstone project Reviewed — 4.6 / 5
Total practice 6.2 hrs
Performance benchmark
Cohort rank Top 12% of 1,625
Time to completion 11 days (median: 22)
Mastery score 91 / 100
Practice-question score 94%
Skill verification Verified Skill Path
Verify this credential
pickaclass.com/certificates/PCC-2026-X4F7-AP19
Issued under the academic standards of PickAClass. Skill levels reflect assessed performance against the course's competency rubric. This is an original credential of this platform.

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Frequently asked

What do I need to take this course? +

Just a phone or computer with internet. No installs, no special hardware.

How do I pay? +

By card via Stripe. We don’t store card details — Stripe handles them securely.

Can I get a refund? +

Yes — full refund within 14 days, no questions asked.

How long will I have access? +

Forever. Once you purchase, the course is yours to revisit anytime.

Will I get a certificate? +

Yes. On completion you'll receive a certificate you can add to your LinkedIn profile.

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