[Solved] What will be the output of this C program?int main() { int arr[3] = {1, 2, 3}; int *p = arr; printf("%d", *(p + 2)); return 0; } | C

C - Basics and Execution Environment

What will be the output of this C program?

int main() {
    int arr[3] = {1, 2, 3};
    int *p = arr;
    printf("%d", *(p + 2));
    return 0;
}

A1

BCompilation error

C2

D3

Step-by-Step Solution

Solution:

Step 1: Understand pointer arithmetic
Pointer p points to arr[0]. Adding 2 moves to arr[2].
Step 2: Access the value at arr[2]
arr[2] is 3, so *(p + 2) is 3.
Final Answer:
3 -> Option D
Quick Check:
Pointer arithmetic accesses arr[2] = 3 [OK]

Quick Trick: Pointer + index accesses array element at that index [OK]

Common Mistakes:

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