LZ4 THINKING
CODE INTELLIGENCE TEST
POWERED BY LZ4.AI · TEST YOUR LIMITS · SELECT DIFFICULTY
◆ EASY
Basic syntax, core concepts, beginner fundamentals.
10 questions
◆ MEDIUM
Intermediate patterns, algorithms, data structures.
10 questions
◆ HARD
Deep internals, performance, advanced CS theory.
10 questions
◆ ULTRA
Senior/Staff level. Language specs, compiler theory, OS internals.
10 questions
◆ MIXED
All difficulties combined. Full spectrum challenge.
15 questions
Q 1 / 10 JAVASCRIPT EASY 

      

      

      
    


    
    

      

        

          
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