MODULE-6

	EX -25 –DISPLAYING ARRAYS USING POINTERS

AIM

Write a c program to read and display an array of any 6 integer elements using pointer

ALGORITHM

Step 1: Start the program. Step 2: Declare the following: • Integer variable i for iteration. • Integer variable n to store the number of elements. • Integer array arr[10] to hold up to 10 elements. • Integer pointer parr and initialize it to point to the array arr. Step 3: Read the value of n (number of elements) from the user. Step 4: Loop from i = 0 to i < n: • Read an integer value and store it in the address parr + i using pointer arithmetic. Step 5: Loop from i = 0 to i < n: • Print the element at *(parr + i) using pointer dereferencing. Step 6: End the program.

PROGRAM

OUTPUT

RESULT

Thus the C program to read and display an array of any 6 integer elements using pointer has been executed

	EX-26-AREA-OF-RECTANGLE-USING- POINTER

AIM To write a C Program to find area of rectangle using pointer.

ALGORITHM

1. Start the program.
2. Read two numbers.
3. Calculate the area of rectangle using the formula area=(x)(*y)
4. Display the result.
5. Stop the program.

PROGRAM

OUTPUT

RESULT Thus the program to find area of rectangle using pointer has been executed successfully

	EX-27-DYNAMIC-MEMORY-ALLOCATION

AIM To write a C Program to print 'WELCOME' using malloc() and free().

ALGORITHM

1. Start the program.
2. Read a string variable.
3. Allocate memory using malloc().
4. Display the string.
5. Remove the allocated memory using free().
6. Stop the program.

PROGRAM

OUTPUT

RESULT Thus the program to print 'WELCOME' using malloc() and free() has been executed successfully

	EX-28-STUDENT-INFORMATION-USING-STRUCTURE

AIM

To write a C Program to store the student information and display it using structure.

ALGORITHM

1. Start the program.
2. Create a student structure with name, roll number and marks as members.
3. Using structure variable read the structure members and print them.
4. Stop the program.

PROGRAM

OUTPUT

RESULT

Thus the program to store the student information and display it using structure has been executed successfully

	EX-29-EMPLOYEE-STRUCTURE-SALARY-CALCULATION

AIM

To write a C Program to read and store the data of 3 employees and calculate their Gross Salary using the concept of structure.

ALGORITHM

1. Start the program.
2. Create an employee structure with name, id and salary details as members.
3. Using structure variable read the structure members.
4. Calculate the gross salary and print the details.
5. Stop the program.

PROGRAM

OUTPUT

	EX – 30 -STUDENTS MARK -TOTAL &AVERAGE USING STRUCURE

AIM Create a C program to calculate the total and average of student using structure.

ALGORITHM

Step 1: Start the program. Step 2: Define a struct student with: • name: a character array (size 10) for the student's name (not used in the logic). • rollno: an integer for the student's roll number (also unused). • subject[5]: an array to store marks of 5 subjects. • total: an integer to store total marks. Step 3: Declare an array s[2] of type struct student for 2 students. Also declare variables n, i, and j for input and iteration. Step 4: Input Loop (i = 0 to 1): • Read an integer n (but it's not used later — possibly intended for roll number or placeholder). • Loop j = 0 to 4: o Read 5 subject marks into s[i].subject[j]. Step 5: Total Marks Calculation Loop (i = 0 to 1): • Initialize s[i].total to 0. • Loop j = 0 to 4: o Add each subject mark to s[i].total. Step 6: Override Total (Hardcoded): • Set s[0].total = 374; • Set s[1].total = 383; This step overwrites the computed totals. It seems like testing or hardcoded totals — unnecessary if you’re already calculating them. Step 7: Output Loop (i = 0 to 1): • Print s[i].total for each student. Step 8: End the program.

PROGRAM

OUTPUT

RESULT

Thus the C program to calculate the total and average of student using structure has been executed successfully.