Q6

3)

What is the error in the following code snippet?

const int WORDCOUNT = 100;

string words[WORDCOUNT];

for (int i = 0; i <= WORDCOUNT; i++)

{

  cout << words[i] << endl;

}

		Cannot define an array of strings
		Infinite loop
		Array index out of bounds
		Skips elements in the array

4)

Why is it unnecessary to explicitly use the & symbol whenpassing a one-dimensional array as a reference parameter?

		It is not allowable to pass arrays by reference in C++
		Only the elements of an array can be passed by reference
		Only two-dimensional arrays can be passed by reference
		One dimensional arrays are always passed by reference in C++

7)

1. Consider the following code snippet:

   int arr[3][3] = {  { 1, 2, 3 },  { 4, 5, 6 }};

   int val = arr[0][2] + arr[2][0];

   cout << val;

   What is the output of the given code snippet on execution?

   		3
   		4
   		5
   		6

8)

The algorithm below is called:

bool found = false;

int low = 0, pos =0, high = size - 1;

while (low <= high && !found)

{

   pos = (low + high) / 2;  // Midpoint of the subsequence

   if (values[pos] == searched_value) { found = true; }

   else if (values[pos] < searched_value)

   { low = pos + 1; } // Look in second half

   else

   { high = pos - 1; } // Look in first half

}

		Selection sort
		Linear search
		Binary sort
		Binary search

9)

Which one of the following is a correct declaration for afunction named passvect with the vector num of size 5 as areference parameter?

		void passvect(vector& num(5))
		void passvect(vector num)
		void passvect(vector& num)
		void passvect(num)

10)

What is the result of the following definition of a vector?

vector points;

		The statement causes a compile-time error as the size of thevector is not defined.
		The statement creates a vector of size 0.
		The statement creates a vector with unlimited size.
		The statement creates a vector of size 1.

11)

The selection sort uses two primary operations to put theelements of an array in order:

		find the minimum; and insert
		find the minimum; and swap
		divide and conquer; and swap
		insert; and copy

13)

What should be ensured for calculating the smallest value in avector?

		The vector contains at least one element.
		The vector contains at least two elements.
		The vector contains the maximum value in the first element.
		The vector contains the least value in the first element.

14)

1. What is the value of the variable sum after thefollowing code snippet is run?

   vector series(10);

   int sum = 0;

   for (int cnt = 0; cnt < series.size(); cnt++)

   {

    series[cnt] = cnt + 1;

    sum = sum + series[cnt];

   }

   		50
   		55
   		0
   		1

15)

1. What should be ensured for calculating the largest value in avector?

   		The vector contains at least one element.
   		The vector contains at least two elements.
   		The vector contains the minimum value in the first element.
   		The vector contains the maximum value in the first element.

17)

What is the result of the following definition of a vector?

vector chkdata;

		The statement causes a compile time error as the size of thevector is not defined.
		The statement creates a vector of size 0.
		The statement creates a vector with unlimited size.
		The statement creates a vector of size 1.

18)

What does "adapting array algorithms" mean in the context ofproblem solving?

		Converting scalar algorithms to handle arrays
		Changing and/or combining common algorithms like searching,swapping, and sorting
		Adjusting array index values to meet the requirements of theproblem
		None of these

20)

Consider the following line of code:

int somearray[50];

Which one of the following options is a valid line of code fordisplaying the twenty-eighth element of somearray?

		cout << somearray[28];
		cout << somearray(28);
		cout << somearray(27);
		cout << somearray[27];

Answer rating: 100% (QA)

The detailed answer for the above question is provided below Question 6 3 c Array index out of bounds In this code snippet the for loop iterates from 0 to WORDCOUNT which means that it will try to acc... View the full answer