1. what is the output of the following program ? “alloc failed or alloc successful” ?
#include<stdio.h>
void alloc(int *p)
{
p=(int*)malloc(10*sizeof(*p));
}
main()
{
int *p=NULL;
alloc(p);
if(NULL==p)
printf("alloc failed");
else
printf("alloc successful");
}
Ans: alloc failed
make changes to get “alloc successful” as output.
2. what is the output of the program ?
#include<stdio.h>
main()
{
struct node
{
int a;
int b;
int c;
};
struct node s={3,5,6};
struct node *pt=&s;
printf("%d",*(int*)pt);
}
Ans: 3
3. what is the output of the following program ?
#include<stdio.h>
main()
{
printf(3+"Hello World");
}
Ans: lo World
4. what is the output of the following program ?
#include<stdio.h>
main()
{
int a=0;
if(a=2)
printf("I am inside IF\n");
printf("It is correct");
}
Ans:
I am inside IF
It is correct
5. what is the output ?
#include<stdio.h>
main()
{
unsigned i=5;
if(i > -5)
printf("it is less than -5");
}
Ans: No output
