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Point out the error, if any in the program. #include int main() { int P = 10; switch(P) { case 10: printf("Case 1"); case 20: printf("Case 2"); break; case P: printf("Case 2"); break; } return 0; }

Error: No default value is specified
Error: Constant expression required at line case P:
Error: There is no break statement in each case.
No error will be reported.

Correct Answer: Error: Constant expression required at line case P:

Explanation:

The compiler will report the error "Constant expression required" in the line case P: . Because, variable names cannot be used with case statements.

The case statements will accept only constant expression.

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