DS EXP1

Which of these best describes an array?

• A data structure that shows a hierarchical behavior

• Container of objects of similar types

• Arrays are immutable once initialized

• Array is not a data structure

How do you initialize an array in C

• int arr[3] = (1,2,3);

• int arr(3) = {1,2,3};

• int arr[3] = {1,2,3};

• d) int arr(3) = (1,2,3);

In general, the index of the first element in an array is __________

• 0

• -1

• 2

• 1

Elements in an array are accessed _____________

• randomly

• sequentially

• exponentially

• logarithmically

What is the length of an array when its first index is denoted by i and last index is denoted by j

• length of array = i + j

• length of array = j - i -1

• length of array = j - i

• length of array = j - i + 1

What is the output ?

void main(){

int arr[2]= {1, 0, 10};

int x;

for(int i =0;i<n;i++){

x += arr[i]

}

printf("%d", x);

}

• 11

• Compilation Error

• Run Time Error

• None

What is the output ?

void main(){

int arr[2]= {1, 0, 10};

for(int i =0;i<n;i++){

x += arr[i]

}

printf("%d", x);

}

• 11

• Compilation Error

• Run Time Error

• None

If an array of float type contains 10 elements, what is the size of the array in bytes

• 40 Bytes

• 80 Bytes

• 4 Bytes

• 160 Bytes

If integer requires 2 bytes, what will be the size of below:

int array[3][4] = (0);

• 24

• 12

• 7

• I dont know

Condition for printing upper triangle matrix

• if (i > j)

• if (i < j)

• if (i == j)

• if (i != j)