C Program For Pointers

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Program 1

// Pointer Practical
#include<stdio.h>
#include<conio.h>
void main()
{
    int a=10,*p,*r,b=50;
    p=&a;
    r=&b;
    ++*p;  //a=11
    ++*r;    //b=51
    a=a+5; //a=16
    b=b+5;//b=56
    r=&a;
    ++*p; //a=17
    ++*r;  // a=18

    printf("a=%d b=%d *p=%d *r=%d ",a,b,*p,*r);


    //  p=&a;
    //  ++*p;  //Value 
    //  printf("\n\n %d \t %d ",a,*p);
    //  ++p;  //Address 
    //  printf(" \n\n %d \t  %d ",a,*p);


    // int a=10,*p,**r;
    // p=&a;
    // r=&p;
    // printf("\nValue of a %d",a);
    // printf("\nValue of p %u",p);
    // printf("\nValue of *p %d",*p);
    // printf("\nValue of r %u",r);
    // printf("\nValue of *r %u",*r);
    // printf("\nValue of **r %d",**r);
    // ++**r;
    // printf("\nValue of a %d",a);
}

 

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