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5-question demo · West Bengal -JECA - Data Structures

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Question 1 of 5
What is an array? What are different types of arrays?
Why: This answer defines array clearly, lists all major types with examples, explains memory representation concept, and provides practical usage context. Meets 50-80 word requirement for short answer.
Question 2 of 5
What are the limitations of array?
Why: Comprehensive coverage of all major limitations with examples and time complexity analysis. Alternative solutions mentioned for complete understanding.
Question 3 of 5
Describe how the arrays are represented in memory?
Why: Complete explanation with formulas for 1D, 2D row-major, and column-major mapping. Numerical examples and memory layout table included.
Question 4 of 5
What is a sparse matrix? How sparse matrices can be represented in memory?
Why: Definition, real-world example, three standard representations with data structures, memory comparison, and applications. Complete coverage.
Question 5 of 5
Consider the linear array A[5:100], B[−5:20] and C[20]. Find the number of elements in each array. Suppose Base(A)=0x800 and w=4 words per memory cell for A. Calculate the address of A[50] and B[15].
Why: Complete solution with formula derivation, step-by-step calculation, bounds checking, and memory verification.