| Other C Code Interview Questions |
| |
| Question | Asked @ | Answers |
| |
| main()
{
int i=5,j=6,z;
printf("%d",i+++j);
} | | 1 |
| Give a one-line C expression to test whether a number is a
power of 2. | Microsoft | 8 |
| main()
{
int x=5;
clrscr();
for(;x==0;x--) {
printf("x=%d\n”", x--);
}
}
a. 4, 3, 2, 1, 0
b. 1, 2, 3, 4, 5
c. 0, 1, 2, 3, 4
d. none of the above | HCL | 1 |
| main()
{
float i=1.5;
switch(i)
{
case 1: printf("1");
case 2: printf("2");
default : printf("0");
}
} | | 1 |
| main()
{
int i=300;
char *ptr = &i;
*++ptr=2;
printf("%d",i);
} | | 1 |
| union u
{
union u
{
int i;
int j;
}a[10];
int b[10];
}u;
main()
{
printf("\n%d", sizeof(u));
printf(" %d", sizeof(u.a));
// printf("%d", sizeof(u.a[4].i));
}
a. 4, 4, 4
b. 40, 4, 4
c. 1, 100, 1
d. 40 400 4 | HCL | 1 |
| Give a oneline C expression to test whether a number is a
power of 2?
| Motorola | 16 |
| plz send me all data structure related programs | | 2 |
| Which version do you prefer of the following two,
1) printf(“%s”,str); // or the more curt one
2) printf(str); | | 1 |
| Write a prog to accept a given string in any order and flash
error if any of the character is different.
For example : If abc is the input then abc, bca, cba, cab
bac are acceptable, but aac or bcd are unacceptable. | Microsoft | 5 |
| How to swap two variables, without using third variable ? | HCL | 46 |
| main()
{
int i=-1;
+i;
printf("i = %d, +i = %d \n",i,+i);
} | | 1 |
| void main()
{
void *v;
int integer=2;
int *i=&integer;
v=i;
printf("%d",(int*)*v);
} | | 1 |
| main()
{
unsigned char i=0;
for(;i>=0;i++) ;
printf("%d\n",i);
} | | 1 |
| how to return a multiple value from a function? | Wipro | 2 |
| #include<stdio.h>
main()
{
struct xx
{
int x=3;
char name[]="hello";
};
struct xx *s;
printf("%d",s->x);
printf("%s",s->name);
} | | 1 |
| Is the following code legal?
struct a
{
int x;
struct a *b;
} | | 1 |
| write a program to Insert in a sorted list | Microsoft | 4 |
| main()
{
int i=-1;
-i;
printf("i = %d, -i = %d \n",i,-i);
} | | 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 |
| |
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