| Other C Code Interview Questions |
| |
| Question | Asked @ | Answers |
| |
| #define SQR(x) x * x
main()
{
printf("%d", 225/SQR(15));
}
a. 1
b. 225
c. 15
d. none of the above | HCL | 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 |
| void main()
{
int i=5;
printf("%d",i++ + ++i);
} | | 1 |
| What is the output of the program given below
main()
{
signed char i=0;
for(;i>=0;i++) ;
printf("%d\n",i);
} | | 1 |
| main()
{
int i=5;
printf(“%d”,i=++i ==6);
} | | 1 |
| main()
{
static int var = 5;
printf("%d ",var--);
if(var)
main();
} | | 1 |
| #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 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 |
| Given an array of characters which form a sentence of
words, give an efficient algorithm to reverse the order of
the words (not characters) in it.
| Microsoft | 7 |
| main()
{
char c=' ',x,convert(z);
getc(c);
if((c>='a') && (c<='z'))
x=convert(c);
printf("%c",x);
}
convert(z)
{
return z-32;
} | | 1 |
| 1)
int i=5;
j=i++ + i++ + i++;
printf("%d",j);This code gives the answer 15.But if we
replace the value of the j then anser is different?why?
2)int i=5;
printf("%d",i++ + i++ + i++);
this givs 18. | Infosys | 6 |
| Which version do you prefer of the following two,
1) printf(“%s”,str); // or the more curt one
2) printf(str); | | 1 |
| Derive expression for converting RGB color parameters to
HSV values | | 1 |
| main()
{
int i=5,j=6,z;
printf("%d",i+++j);
} | | 1 |
| main()
{
if ((1||0) && (0||1))
{
printf("OK I am done.");
}
else
{
printf("OK I am gone.");
}
}
a. OK I am done
b. OK I am gone
c. compile error
d. none of the above | HCL | 1 |
| void ( * abc( int, void ( *def) () ) ) (); | | 1 |
| void main()
{
int const * p=5;
printf("%d",++(*p));
} | | 1 |
| main()
{
int i, j, *p;
i = 25;
j = 100;
p = &i; // Address of i is assigned to pointer p
printf("%f", i/(*p) ); // i is divided by pointer p
}
a. Runtime error.
b. 1.00000
c. Compile error
d. 0.00000 | HCL | 1 |
| Is the following code legal?
typedef struct a
{
int x;
aType *b;
}aType | | 1 |
| #include <stdio.h>
main()
{
char * str = "hello";
char * ptr = str;
char least = 127;
while (*ptr++)
least = (*ptr<least ) ?*ptr :least;
printf("%d",least);
} | | 1 |
| |
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