Practice Pointers – What is the output of the following C Program?
#include
void main()
{
char *p;
int *q;
long *r;
p=q=r=0;
p++;
q++;
r++;
printf("%p...%p...%p",p,q,r);
}
Practice Variable Number of Arguments – What will be output of the following “c” code?
#include
int main(){
float **(*ptr)[4]=(float **(*)[4])0;
ptr+=5;
printf("%d %d",ptr,sizeof ptr);
return 0;
}
Practice Basic Concept – What is the output of the following C Program?
#include
void main(){
int i;
for(i=0;i<5;i++){
int x=0;
printf("%d",x);
x++;
}
}
Practice Structures, Unions, Enums – What is the output of the following program ?
#include
void main()
{
struct xx
{
int x=3;
char name[]="hello";
};
struct xx *s=malloc(sizeof(struct xx));
printf("%d",s->x);
printf("%s",s->name);
}
Practice Expressions – What will be output of the following “c” code?
#include
#include
void main(){
int a,i=4;
a=- -i+- -i+- -5;
printf("%d %d",a,i);
}
Practice Control Instructions – What is the output of the following C Program?
#include
int main(){
for(printf("1");!printf("0");printf("2"))
printf("Aditya");
return 0;
}
Practice Variable Number of Arguments – What will be output of the following “c” code?
#include
void main()
{
float me = 1.1;
double you = 1.1;
if(me==you)
printf("I love U");
else
printf("I hate U");
}
Practice Declarations and Initializations – What is the output of the following problem ?
#include
#define max
int main(){
printf("%d",max);
return 0;
}
Practice Declarations and Initializations – What is the output of the following problem ?
int main()
{
int const * p=5;
printf("%d",++(*p));
return 0;
}
Practice Arrays – What is the output of the following problem ?
int main()
{
char s[ ]="man";
int i;
for(i=0;s[ i ];i++)
printf("
%c%c%c%c",s[ i ],*(s+i),*(i+s),i[s]);
return 0;
}
Practice Functions – What is the output of the following problem ?
#include
int main() {
int factorial(int n);
int i,ans;
ans = factorial(5);
printf("
Factorial by recursion = %d
", ans);
return 0;
}
int factorial(int n)
{
if (n <= 1)
return (1);
else
return ( n * factorial(n-1));
}
Practice Structures, Unions, Enums – What is the output of the following problem ?
#include
struct {
int x;
int y;
union {
int id_no;
char *name;
}b;
}s,*st;
int main()
{
st = &s;
st->x=10;
st->b.id_no = 101;
printf("%d %d
",s.x,s.b.id_no);
return 0;
}
Practice Control Instructions – What is the output of the following problem ?
#include
int main()
{
int i;
for (i=9;i<13; i++)
printf("%d %0x ",i,i);
return 0;
}
Practice Arrays – What is the output of the following problem ?
#include
int main()
{
func(1);
return 0;
}
func(int i){
static char *str[] = {"One","Two", "Three", "Four"};
printf("%s
",str[i++]);
return;
}
Practice Strings – What is the output of the following problem ?
#include
int main()
{
int len=4;
char *st="12345678";
st = st + len;
printf("%c
",*st);
return 0;
}