| Other C Code Interview Questions |
| |
| Question | Asked @ | Answers |
| |
| main()
{
float f=5,g=10;
enum{i=10,j=20,k=50};
printf("%d\n",++k);
printf("%f\n",f<<2);
printf("%lf\n",f%g);
printf("%lf\n",fmod(f,g));
} | | 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 |
| String copy logic in one line. | NetApp | 9 |
| main()
{
int i=5;
printf("%d%d%d%d%d%d",i++,i--,++i,--i,i);
} | | 1 |
| Finding a number which was log of base 2 | NetApp | 1 |
| main()
{
int c[ ]={2.8,3.4,4,6.7,5};
int j,*p=c,*q=c;
for(j=0;j<5;j++) {
printf(" %d ",*c);
++q; }
for(j=0;j<5;j++){
printf(" %d ",*p);
++p; }
} | | 1 |
| const int perplexed = 2;
#define perplexed 3
main()
{
#ifdef perplexed
#undef perplexed
#define perplexed 4
#endif
printf("%d",perplexed);
}
a. 0
b. 2
c. 4
d. none of the above | HCL | 1 |
| main()
{
int *j;
{
int i=10;
j=&i;
}
printf("%d",*j);
} | | 1 |
| enum colors {BLACK,BLUE,GREEN}
main()
{
printf("%d..%d..%d",BLACK,BLUE,GREEN);
return(1);
} | | 1 |
| How can u say that a given point is in a triangle?
1. with the co-ordinates of the 3 vertices specified.
2. with only the co-ordinates of the top vertex given. | | 1 |
| main()
{
extern int i;
i=20;
printf("%d",sizeof(i));
} | | 1 |
| Sorting entire link list using selection sort and insertion
sort and calculating their time complexity | NetApp | 1 |
| main()
{
int i=4,j=7;
j = j || i++ && printf("YOU CAN");
printf("%d %d", i, j);
} | | 1 |
| main()
{
while (strcmp(“some”,”some\0”))
printf(“Strings are not equal\n”);
} | | 1 |
| char inputString[100] = {0};
To get string input from the keyboard which one of the
following is better?
1) gets(inputString)
2) fgets(inputString, sizeof(inputString), fp) | | 1 |
| Link list in reverse order. | NetApp | 7 |
| Is this code legal?
int *ptr;
ptr = (int *) 0x400; | | 1 |
| Print an integer using only putchar. Try doing it without
using extra storage. | | 1 |
| #include<stdio.h>
main()
{
struct xx
{
int x=3;
char name[]="hello";
};
struct xx *s=malloc(sizeof(struct xx));
printf("%d",s->x);
printf("%s",s->name);
} | | 1 |
| main ( )
{
static char *s[ ] = {“black”, “white”, “yellow”,
“violet”};
char **ptr[ ] = {s+3, s+2, s+1, s}, ***p;
p = ptr;
**++p;
printf(“%s”,*--*++p + 3);
} | | 1 |
| |
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