Basic
Switch Case
Goto
Operators
if Statement
Nested if
While Loop
For Loop
Array
2D Array
Patterns
Excersises
Basic
Switch Case
Goto
Operators
if Statement
Nested if
While Loop
For Loop
Patterns
Array
2D Array
Structure
Pointers
Excersises
Others



C Program to Add Two Numbers Using Pointers


Write a C program to Add Two Numbers Using Pointers

  • Takes input of two integers from the user.
  • Stores the addresses of the two integers in pointer variables ptr1 and ptr2.
  • Dereferences the pointers to access values and compute their sum.
  • Prints the calculated sum using the pointer-referenced values.
Example : pgm.c 
#include <stdio.h>

int main() {
    int num1, num2, sum;
    int *ptr1, *ptr2;

    // Input two numbers
    printf("Enter first number: ");
    scanf("%d", &num1);

    printf("Enter second number: ");
    scanf("%d", &num2);

    // Assign addresses to pointers
    ptr1 = &num1;
    ptr2 = &num2;

    // Calculate sum using pointers
    sum = *ptr1 + *ptr2;

    // Output the result
    printf("Sum = %d\n", sum);

    return 0;
}

Output :

Enter first number: 10
Enter second number: 20
Sum = 30