Interview Questions

UST Global- Interview Experience

Interview Questions

UST Global- Interview Questions I


Find Output of the Following C Program

Program 1
	#include<stdio.h>
	main()
	{
		int i=3,*j,k;
		j=&i;
		printf("%d\n",i**j*i+*j);
	}


Program 2

	#include<stdio.h>
	main()
	{
		int x=1,y=1;
		for(;y;printf("x=%d y=%d \n",x,y))
			y=x++<=2;
	}


Program 3

	main()
	{
		int k;
		int i=1;
		int j=sizeof(k=i*5);
		printf("i=%d j=%d k=%d\n",i,j ,k);
	}


Program 4

	main()
	{
		int i=0;
		do
			i++;
		printf("%d\n",i);
		while(i<=5);
		printf("i=%d\n",i);
	}


Program 5

	main()
	{
		int x,y,z;
		x=y=z=0;
		++x || ++y && ++z;
		printf("x=%d y=%d z=%d\n",x,y,z);
	}


Program 6

	main()
	{
		int i=1;
		do
		{
			printf("%d\n",i);
			i++;
			if(i<5)
				continue;
		}while(!(i-2));
		printf("%d\n",i);
	}


Program 7

	main()
	{
	char a[]="abcdef";
	char *p=a;
	printf("%s\n",p++ +3);
	printf("%c\n",*p);
	}


Program 8

	main()
	{
	int i,arr[5]={1,2,3,4,5},*p;
	p=arr+4;
	for(i=0;i<2;i++)
	printf("%d %d\n",*(p-i),-p[-i]);
	}


Program 9

	union 
	{
		int x;
		char y;
		struct
		{
			char x;
			char y;
			int xy;
		}p;
	
	}q;
	main()
	{
		printf("%d\n",sizeof(q));
	}


Program 10

	#define INCREMENT(x)  ++x + 3
	main()
	{
		char *ptr="pointers";
		int x=10;
		printf("%s\n",INCREMENT(ptr));
		printf("%d\n",INCREMENT(x));
	}


Program 11

	#define square(x) x*x
	main()
	{
	int x=36/square(6);
	printf("x=%d\n",x);
	}


Program 12

	main()
	{
	int a[5]={1,2,3,4,5};
	void *ptr=&a;
	ptr=ptr + sizeof(int);
	printf("%d\n",*ptr);
	}


Program 13

	main()
	{
	int i,arr[5]={23,34,45,67,68};
	int *p=arr;
	for(i=2;i<4;i++)
	{
	printf("%d\n",*p++);
	printf("%d\n",++*p);
	}
	}


Program 14

	main()
	{
	printf("%d\n",fun(3,5));
	}
	int fun(int a,int b)
	{
	if(a>b)
	return 0;
	return b+fun(a,b-1);
	}


Program 15

	#include<stdio.h>
	main()
	{
	FILE fp;
	printf("%d\n",sizeof(fp));
	}

Interview Questions

UST Global- Interview Experience

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Interview Questions

UST Global- Interview Questions I

UST Global- Interview Questions I

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