[Solved] Identify the error in this C code snippet:int main() { int a = 5; int *p; *p = a; return 0; } — Ans: Pointer p is not initialized before dereferencing | C

C - Basics and Execution Environment

Identify the error in this C code snippet:

int main() {
    int a = 5;
    int *p;
    *p = a;
    return 0;
}

AVariable a is not declared

BMissing semicolon after int *p

CPointer p is not initialized before dereferencing

DReturn type of main is incorrect

Step-by-Step Solution

Solution:

Step 1: Check pointer initialization
Pointer p is declared but not assigned an address before use.
Step 2: Understand dereferencing uninitialized pointer
Dereferencing p without initialization causes undefined behavior or crash.
Final Answer:
Pointer p is not initialized before dereferencing -> Option C
Quick Check:
Uninitialized pointer dereference = Error [OK]

Quick Trick: Always initialize pointers before using * to avoid errors [OK]

Common Mistakes:

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