CBSE Class 11 Computer Science Worksheet Set I Solved

1. What is an array? How does it differ from ordinary variable? 

2. What is the difference between these two statements?

i) int sum[10];    ii) m[1]=10;

3. Consider the following array declaration:

float Z[10][5];
i) Find the number of elements in the array.
ii) Find the total number of bytes required to store the array.

4. What output does the following code fragment produce:
int item[ ]={15, 28,50,32,48}, sum=0, i=0;
while(i < 5)
{ if(item[i] > 15)
sum+=item[i];
i++;}
cout<<”Sum= ” <

5. Write a program to accept 5 strings, reverse and store each string in the same array and display the resultant strings.

6. Write a program to accept 10 integers to an array. Sort the array elements in descending order and display the sorted array. 37. Write a program to accept a matrix A of size 3 x 3 of integers. Store the transpose of this matrix in another 3 x 3 matrix B and display the transposed matrix.

8. Write a program to accept a sentence and count the number of words in it and display the count.

9. Write a program to accept an array of ‘n’ integers. Accept another integer from the user and check whether that integer is present in the array or not and display proper message.

VALUE POINTS

1. An array is a collection of variables of the same type under one name. Arrays are defined in the same manner as ordinary variable except that each array name must be accompanied by a size specification(ie number of elements) 

2. i) It declares an array of size 10
ii) It initializes the second array element with value 10

3. i) 50 elements
ii) 50*4= 200 bytes 

4. Sum = 158
2 marks for correct output

5. for declaration & input statements 
for correct logic 
for displaying 

6. for declaration & input statements 
for correct logic 
for displaying 

7. for declaration & input statements 
for correct logic
for displaying

8. for declaration & input statements 
for correct logic 
for displaying

9. for declaration & input statements 
for correct logic 
for displaying

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