Task 1

#include<stdio.h>
int main()
{
    int v=3;
    int *pv;

    pv= &v;
    printf("n*pv=%d v=%d", *pv, v);
    *pv=0;
    printf("nn*pv=%d v=%d", *pv, v);
}



                 Task2 
                   
#include<stdio.h>
void funct1(int u, int v);
void funct2(int *pu, int *pv);
main()
{
    int u=1;
    int v= 3;
    printf("nBefore caliing funct1: u=%d  v=%d", u,v);
    funct1(u,v);
    printf("nAfter caliing funct1: u=%d  v=%d", u,v);

    printf("nBefore caliing funct2: u=%d  v=%d", u,v);
    funct2(&u,&v);
    printf("nAfter caliing funct2: u=%d  v=%d", u,v);

}

void funct1(int u, int v)
{
    u=0;
    v=0;
    printf("nWritten funct1:  u=%d v=%d", u,v);
    return;
}
void funct2(int *pu, int *pv)
{
    *pu=0;
    *pv=0;
    printf("nWritten funct1:  *pu=%d *pv=%d", *pu,*pv);
    return;
}