Question

can someone helo with this quesiton

1. Identify and explain which of the following expressions are valid and which are not valid as shown with an arrow. char c; char *ptr; int f, ptr = &f; ptr = &,#,; ptr- &500; ptr = &(ft3);

Answer 1

char c; // valid
char *ptr; // valid
int f; //valid
ptr = &c; // valid
ptr = &f; // invalid
ptr = &'#'; // invalid
ptr = &500; // invalid
ptr = &(f+3); // invalid