Question 1

If an array can store 100 values, what would be the first index?

Accepted Answer

0

Question 2

What is the output of the following code?

#include <iostream>

using namespace std;

int main()

{

    int a[] = {1,2,3,4};

    int b[] = {5,6,7,8};

    cout << a[0] << " " << b[0];

    return 0;

}

Accepted Answer

15

Question 3

How do you initialize an array in C+?

Accepted Answer

int arr[3] = {1,2,3};

type arrayName [arraySize] = { elements }

Question 4

What is the output of the program?

#include <iostream>

using namespace std;

int main()

{

    int myArray[] = {1,2,3,4,5};

    for (int i = 0; i<5; i++)

    {

        cout <<  myArray[i] << " ";

        i++;

    }

}

Accepted Answer

1 3 5

Question 5

What is the output of the following code?

#include <iostream>

using namespace std;

int main()

{

    char grade[] = {'A','B','C'};

    int n = grade[0];

    cout << "GRADE = " << grade[0] << " " << n ;

    return 0;

}

Accepted Answer

GRADE = A 65

Question 6

What is the index number of the last element of an array with 50 elements?

Accepted Answer

49

Question 7

Which of the following correctly declares an array?

Accepted Answer

double price[5];

Question 8

It is an array that consists of more than one row and more than one column.

Accepted Answer

two dimensional array

Question 9

An array composed of 6 rows and 2 columns, what would be the array declaration?

Accepted Answer

int a[6][2];

Question 10

#include <iostream>

using namespace std;

int main () {

   int a[3][2] = { {0,0}, {1,2}, {2,4} };

   for ( int i = 0; i < 3; i++ )

      for ( int j = 0; j < 2; j++ ) {

           cout << a[i][j]<< " ";

      }

   return 0;

}

Accepted Answer

0 0 1 2 2 4

Question 11

What is the output of the given program?

#include <iostream>
using namespace std;

int main () {
    int items[3][5] =  { {-1, 1, 3, 4, 45},

           {4, 3, 99, 0, 7},
           {3, 2, 66, 94,8} ;

    cout << items[1][2];
   return 0;
}

Accepted Answer

99

Question 12

In the array int x[3][4], how many rows were created?

Accepted Answer

3

Question 13

In the array is int x[10][6], how many columns were created?

Accepted Answer

6

Question 14

Which of the following is a two-dimensional array?

Accepted Answer

int my Array[20[20];

Question 15

#include <iostream>

using namespace std;

int main () {

    int a[5][2] = { {0,0}, {1,2}, {2,4}, {3,6}, {4,8}};

    int sum = a[2][0]+a[1][1];

    cout << sum << endl;

   return 0;

}

Accepted Answer

4

Question 16

#include<iostream>
 using namespace std;
int main (){
   int array[] = {0,2,4,6,7,5,3};
   int n, result = 0;

   for (n=0;n < 8;n++){ 
       result += array[n]; }
   cout << result;
   return 0;
    }

Accepted Answer

27

Question 17

In a single dimension array, the starting index is always _____________.

Accepted Answer

0

Question 18

If an array myArray = {15, 45, 67, 34}, what statement should you choose to change the last value to 3?

Accepted Answer

myArray[3] = 3;

Question 19

Which of the following accesses the tenth element stored in an array?

Accepted Answer

array[9];

Question 20

What is the index number of the last element of an array with 100 elements?

Accepted Answer

99

Question 21

What is the correct array declaration?

Accepted Answer

int arr2[15];

Question 22

In C++, an Array is:

an array contains more than one element
a group of elements of the same type
array elements are stored in memory in continuous or contiguous locations

Accepted Answer

all of the given

Question 23

#include <iostream>
using namespace std;

int main(){
    int a[2][2] = {{2,4},{6,8}};

    int i, j;

    for (i = 0; i < 2; i++)

        for (j = 0; j < 2; j++)

            cout << a[i][j] << " ";

    return 0;
}

Accepted Answer

2 4 6 8

Question 24

In an array, int a[3][2], what is the last index value of the column?

Accepted Answer

1

Question 25

If you will be making a table of values, composed of 3 rows and 5 columns, what would be the array declaration?

Accepted Answer

int a[3][5];

Question 26

If the array has a syntax of data_type array_name[x][y]; What does y represent?

Accepted Answer

columns

Question 27

In the array is int arr[11][5], how many rows were created?

Accepted Answer

11

Question 28

If you will be making a table of values, composed of 3 rows and 3 columns, what would be the array declaration?

Accepted Answer

int a[3][3];

Question 29

In the array is int x[3][4], how many columns were created?

Accepted Answer

4

Question 30

What is the index number of the last element of an array with 20 elements?

Accepted Answer

19

Question 31

Which of the following correctly declares an array?

Accepted Answer

float prices[3];

Question 32

What is the index number of the last element of an array with 29 elements?

Accepted Answer

28

Question 33

What is the output of the program?

#include <iostream>

using namespace std;

int main()

{

    int myArray[] = {1,2,3,4,5,6};

    for (int i = 0; i<6; i++)

    {

           cout <<  myArray[i] << " ";

    }

}

Accepted Answer

1 2 3 4 5 6

Question 34

#include <iostream>

using namespace std;

int main()

{

    double marks[3] = {90.5, 92.5, 96.5};

    int a=0;

    while(a<3)

    {

        cout << marks[a] << " ";

        a++;

    }

    return 0;

}

Accepted Answer

90.5 92.5 96.5

Question 35

It is used to store multiple values in a single variable, instead of declaring separate variables for each value

Accepted Answer

array

Question 36

A series of elements of the same type placed in contiguous memory locations that can be individually referenced by adding an index to a unique identifier.

Accepted Answer

Array

Question 37

In order to have an array with 5 rows and 10 columns, the correct declaration should be:

Accepted Answer

int x[5][10];

Question 38

What is the index number of the last element of an array with 15 elements?

Accepted Answer

14

Question 39

Check the array below:

int array[3][5]

 {

  { 1, 2, 3, 4, 5 }, 

  { 6, 7, 8, 9, 10 }, 

  { 11, 12, 13, 14, 15 } 

};

What’s the index of the array where it contains the value 12?

Accepted Answer

array [2][1]

Question 40

In the array is int x[100][50], how many rows were created?

Accepted Answer

100

Question 41

An array composed of 6 rows and 4 columns, what would be the array declaration?

Accepted Answer

int a[6][4];

Question 42

In order to have an array with 2 rows and 9 columns, the correct declaration should be:

Accepted Answer

int x[2][9];

Question 43

In a given array int x[3][4] = {{0,1,2,3}, {4,5,6,7}, {8,9,10,11}}; how many columns are there?

Accepted Answer

4

Question 44

#include <iostream>

using namespace std;

int main()

{

    int a[2][2] = {{1,2},{3,4}};

    int i, j;

    for (i = 0; i < 2; i++)

        for (j = 0; j < 2; j++)

            cout << a[i][j];

    return 0;

}

Accepted Answer

1234

Question 45

In a given array int x[3][4] = {{0,1,2,3},

                                                                {4,5,6,7},

                                                                {8,9,10,11}}; 

What is index of 7?

Accepted Answer

x[1][3]

[CP 2 - CCS0007] M2

Arrays

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