Q1)  What is the output displayed by the below code?

#include<stdio.h>
#include<string.h>
int f(int a,int b)
{
     if(a==0)
         return b;
     else if(a==1)
         return b+1;
     else
         return f(a-1,a+b+5);
}
int main()
{
     int a=3,b=4;
     int z;
     z=f(a,b);
     printf("%d",z);
     return 0;
}

Q2)  What is the output displayed by the below program?

#include<stdio.h>
int f(int a)
{
     int p=1;
     if(a>0)
          return p+f(a-1);
     else
     {
          p=p+1;
          return a+p;
     }

}
int main()
{
      int a=2;
      int z;
      z=f(a);
      printf("%d",z);
      return 0;
}

Q3)  What is the output displayed by the below code?

#include<stdio.h>
int main( )
{
     static char[3][4]={"lmno","uvwx","fghi"};
     putchar(**a);
     return 0;
}

Q4)  choose the correct option.

#include<stdio.h>
void swap(int a,int b)
{
     int temp;
     temp=a;
     a=b;     
     b=temp;
}
In order to exchange the values of two variables x and y

Q5)  What is the output displayed by the below code?

#include<stdio.h>
struct node
{
     char x,y,z;
};
int main()
{
     struct node p={'1','0','a'+2};
     struct node *q=&p;
     printf("%c %c",*((char *)q+1),*((char *)q+2));
     return 0;
}

Q6)  What is the output displayed by the below code?

#include<stdio.h>
int main()
{
     int arr[]={1,2,3,4,5,6,7,8,9,0,1,2,5};
     int *ip=arr+4;
     printf("%d",(ip[1]));
     return 0;
}

Q7)  What does the following function return?

int t(int a,int b,int c)
{
     if((a>=b) && (c<b))
          return b;
     else if(a>=b)
          return t(a,c,b);
     else
          return t(b,a,c);
}

Q8)  What is theoutput displayed by the below code?

#include<stdio.h>
void swap(int *x,int *y)
{
     static int *temp;
     temp=x;
     x=y;
     y=temp;
}
void printab()
{
     static int i, a=-3,b=-6;
     i=0;
     while(i<=4)
     {
          if((i++)%2==1)
               continue;
          a=a+i;
          b=b+i;
     }
     swap(&a,&b);
     printf("a=%d,b=%d\n",a,b);
}
int main()
{
     printab();
     printab();
     return 0;
}

Q9)  What is the output displayed by the below program?

#include<stdio.h>
int main()
{
     char num=127;
     num=num+1;
     printf("%d",num);
     return 0;
}

Q10)  What is the output displayed by the below program?

#include<stdio.h>
int main()
{
     char *ptr="learning%s";
     printf(ptr);
     return 0;
}

Q11)  What is the output displayed by the below program?

#include<stdio.h>
int main()
{
     static int num=3;
     if(--num)
     {
          main();
          printf("%d",num);
     }
     return 0;
\}

Q12) What is the output displayed by the below code?

#include<stdio.h>
void f(int c[][3])
{
     ++c;
     c[1][1]=15;
}
int main()
{
     int a[3][3]={{1,2,3},{4,5,6},{7,8,9}};
     f(a);
     printf("%d",a[2][1]);
     return 0;
}

Q13)  What is the output displayed by the below code?

#include<stdio.h>
int main()
{
     int a[]={1.3,2.7,3.5,4.8,5};
     int *ptr=a,i;
     for(i=0;i<5;i++)
     {
          printf("%d ",*ptr);
          ++ptr;
     }
     return 0;
}

Q14)  What is the output displayed by the below code?

#include<stdio.h>
int main()
{
    int a[]={0,1,2,3,4};
    int *p[]={a,a+1,a+2,a+3,a+4};
    int **ptr=p;
    ++*ptr;
    printf("%d%d%d",ptr-p,*ptr-a,**ptr);
    return 0;
}

Q15)  Assume int and pointer take 4 and 4 bytes of memory respectively.

What is the output displayed by the below code?

#include<stdio.h>
int main()
{
     int a[]={1,2,3,4,5};
     printf("%d", sizeof(&a));
     return 0;
}