| Other C Code Interview Questions |
| | | Question | Asked @ | Answers | | | | How to swap two variables, without using third variable ? | HCL | 48 | | 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 | | how to return a multiple value from a function? | Wipro | 2 | | How will you print % character?
a. printf(\%)
b. printf(\\%)
c. printf(%%)
d. printf(\%%) | HCL | 1 | | int i;
main(){
int t;
for ( t=4;scanf("%d",&i)-t;printf("%d\n",i))
printf("%d--",t--);
}
// If the inputs are 0,1,2,3 find the o/p | | 1 | | main()
{
int i=_l_abc(10);
printf("%d\n",--i);
}
int _l_abc(int i)
{
return(i++);
} | | 1 | | void main()
{
if(~0 == (unsigned int)-1)
printf(You can answer this if you know how values are
represented in memory);
} | | 1 | | main()
{
printf("%d", out);
}
int out=100; | | 1 | | main()
{
register int a=2;
printf("Address of a = %d",&a);
printf("Value of a = %d",a);
} | | 1 | | #define prod(a,b) a*b
main()
{
int x=3,y=4;
printf("%d",prod(x+2,y-1));
} | | 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 | | #define clrscr() 100
main()
{
clrscr();
printf("%d\n",clrscr());
} | | 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 | | What is the hidden bug with the following statement?
assert(val++ != 0); | | 1 | | main()
{
char a[4]="HELLO";
printf("%s",a);
} | | 1 | | void func1(int (*a)[10])
{
printf("Ok it works");
}
void func2(int a[][10])
{
printf("Will this work?");
}
main()
{
int a[10][10];
func1(a);
func2(a);
}
a. Ok it works
b. Will this work?
c. Ok it worksWill this work?
d. None of the above | HCL | 1 | | #include<stdio.h>
main()
{
const int i=4;
float j;
j = ++i;
printf("%d %f", i,++j);
} | | 1 | | Declare an array of N pointers to functions returning
pointers to functions returning pointers to characters? | | 1 | | union u
{
struct st
{
int i : 4;
int j : 4;
int k : 4;
int l;
}st;
int i;
}u;
main()
{
u.i = 100;
printf("%d, %d, %d",u.i, u.st.i, u.st.l);
}
a. 4, 4, 0
b. 0, 0, 0
c. 100, 4, 0
d. 40, 4, 0 | HCL | 1 | | void pascal f(int i,int j,int k)
{
printf(%d %d %d,i, j, k);
}
void cdecl f(int i,int j,int k)
{
printf(%d %d %d,i, j, k);
}
main()
{
int i=10;
f(i++,i++,i++);
printf(" %d\n",i);
i=10;
f(i++,i++,i++);
printf(" %d",i);
} | | 1 | | | | For more C Code Interview Questions Click Here |
|
Ask Questions on ANYTHING, that arise in your Daily Life at 
Site Map
