C Pointers

array is int str[25]

declare and initialize a pointer to the array called str?


declare a pointer to the array str?

Using pointer notation , write an expression that will refer to the value of 9?

Code:

typedef struct
{
   char name[20];
   int medal;
   int members;
} TEAM;

declare a pointer called ptr to be a pointer to a structure variable of type TEAM?

 

I'm not quite sure if you mean two pointers or just one to the array or the value of 9... is that the 9th element in the array?

Code:

int arr[25] = { 0 }, *p1 = arr, *p2;
p2 = p1; 

printf("%d", *(p2 + 8)); // 9th element

the struct *would* be something like

Code:

TEAM team1 = { "test", 1, 2 }, *p1,
     team2[2] = { { "team1", 1, 1 }, { "team2", 2, 2 } }, *p2, *p3;

p1 = &team1; // single struct
puts(p1->name);

p2 = team2; // if struct array
puts((p2 + index_position)->name); // where index_position is target element

p3 = &team2[0]; // specific element within array
puts(p3->name);