| Other C Code Interview Questions |
| |
| Question | Asked @ | Answers |
| |
| main()
{
char c;
int i = 456;
clrscr();
c = i;
printf("%d", c);
}
a. 456
b. -456
c. random number
d. none of the above | HCL | 1 |
| #define SQR(x) x * x
main()
{
printf("%d", 225/SQR(15));
}
a. 1
b. 225
c. 15
d. none of the above | HCL | 1 |
| Give a oneline C expression to test whether a number is a
power of 2?
| Motorola | 16 |
| main()
{
printf("%x",-1<<4);
} | | 1 |
| void main()
{
int k=ret(sizeof(float));
printf("\n here value is %d",++k);
}
int ret(int ret)
{
ret += 2.5;
return(ret);
} | | 1 |
| #include"math.h"
void main()
{
printf("Hi everybody");
}
if <stdio.h> will be included then this program will must
compile, but as we know that when we include a header file
in "" then any system defined function find its defination
from all the directrives. So is this code of segment will
compile? If no then why? | | 2 |
| Given only putchar (no sprintf, itoa, etc.) write a routine
putlong that prints out an unsigned long in decimal. | | 5 |
| #include<conio.h>
main()
{
int x,y=2,z,a;
if(x=y%2) z=2;
a=2;
printf("%d %d ",z,x);
} | | 1 |
| main()
{
int i=-1,j=-1,k=0,l=2,m;
m=i++&&j++&&k++||l++;
printf("%d %d %d %d %d",i,j,k,l,m);
} | | 1 |
| main()
{
void swap();
int x=10,y=8;
swap(&x,&y);
printf("x=%d y=%d",x,y);
}
void swap(int *a, int *b)
{
*a ^= *b, *b ^= *a, *a ^= *b;
} | | 1 |
| void main()
{
int const * p=5;
printf("%d",++(*p));
} | | 1 |
| #include<stdio.h>
main()
{
const int i=4;
float j;
j = ++i;
printf("%d %f", i,++j);
} | | 1 |
| main( )
{
int a[ ] = {10,20,30,40,50},j,*p;
for(j=0; j<5; j++)
{
printf(“%d” ,*a);
a++;
}
p = a;
for(j=0; j<5; j++)
{
printf(“%d ” ,*p);
p++;
}
} | | 1 |
| void ( * abc( int, void ( *def) () ) ) (); | | 1 |
| What are the following notations of defining functions known as?
i. int abc(int a,float b)
{
/* some code */
}
ii. int abc(a,b)
int a; float b;
{
/* some code*/
} | | 1 |
| Give a one-line C expression to test whether a number is a
power of 2. | Microsoft | 8 |
| main()
{
unsigned char i=0;
for(;i>=0;i++) ;
printf("%d\n",i);
} | | 1 |
| How do you sort a Linked List (singly connected) in O(n)
please mail to pawan.10k@gmail.com if u can find an
anser...i m desperate to knw... | Oracle | 3 |
| main()
{
int a=10,*j;
void *k;
j=k=&a;
j++;
k++;
printf("\n %u %u ",j,k);
} | | 1 |
| main()
{
int i=300;
char *ptr = &i;
*++ptr=2;
printf("%d",i);
} | | 1 |
| |
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