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1 int *pointerToInt;
2 double *pointerToDouble;
3 char *pointerToChar;
4 char **pointerToPointerToChar;
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#include <stdio.h>
int main()
{
int x=9;
int *ptr;
ptr=&x;
printf("Address of ptr is : %p\n", ptr);
printf("value of ptr is : %d", *ptr);
return 0;
}