I can not understand pointer in c++

Question

can you help me?

Answer 1

You should remember that pointer points address of memory which is reserved for variable. Try excercise operators & and * .

int var;
int *p; //declare pointer p of type int
p = &var // now pointer points to address of variable var

cout << p ; //it shows address of memory where is var
cout << *p; // now it shows value of variable var