Array Operations and Searching
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Questions and Answers

What is an array in the context of Computer Programming?

  • A variable that stores a single value.
  • A fixed-size, unsequenced collection of elements of mixed data types.
  • A sequence of data items that are of the same type. (correct)
  • A sequence of data items that are of different types.

What is the significance of the size of an array?

  • It determines the number of elements in the array. (correct)
  • It determines the data type of the array.
  • It determines the data type of each element.
  • It determines the index of the first element.

What happens when an array is declared with too few elements?

  • Overflow error occurs.
  • Syntax error occurs.
  • Underflow error occurs. (correct)
  • Runtime error occurs.

What is the index of the first element in an array?

<p>0 (D)</p> Signup and view all the answers

What is the initialization of the integer array X?

<p>int X = {3, 1, 7, 2, 6, 9, 4, 8, 5, 10} (D)</p> Signup and view all the answers

How are elements in an array stored?

<p>Contiguously (B)</p> Signup and view all the answers

What is the null character that terminates a character array?

<p>/0 (A)</p> Signup and view all the answers

What is the formula to calculate the midpoint in a binary search algorithm?

<p>MID = (R + L)/2 (B)</p> Signup and view all the answers

What is the index of the element 5 in the array X = {3, 1, 7, 2, 6, 9, 4, 8, 5, 10}?

<p>4 (A)</p> Signup and view all the answers

What is the purpose of the sorting operation in an array?

<p>To put the data in order either numerically or alphabetically (B)</p> Signup and view all the answers

Which of the following sorting algorithms is based on the divide and conquer technique?

<p>Merge Sort (C)</p> Signup and view all the answers

What is the characteristic of the Shell Sort algorithm?

<p>All of the above (D)</p> Signup and view all the answers

What is the primary benefit of the shell sort algorithm over insertion sort?

<p>It avoids large shifts in the data (B)</p> Signup and view all the answers

What is the formula used to calculate the interval in shell sort?

<p>h = h * 3 + 1 (C)</p> Signup and view all the answers

What is the main idea behind the quick sort algorithm?

<p>Partitioning the array into smaller subarrays (A)</p> Signup and view all the answers

How do you declare a two-dimensional array in a programming language?

<p>Using two pairs of square brackets (A)</p> Signup and view all the answers

What is the size of a two-dimensional array?

<p>Row x column (D)</p> Signup and view all the answers

What is the error in the following declaration: int x={{2,4,6,8},{10,12,1,3,14},{5,7,9,11}};

<p>The rows have different numbers of elements (D)</p> Signup and view all the answers

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