| Other C Code Interview Questions |
| | | Question | Asked @ | Answers | | | | main()
{
while (strcmp(“some”,”some\0”))
printf(“Strings are not equal\n”);
} | | 1 | | int swap(int *a,int *b)
{
*a=*a+*b;*b=*a-*b;*a=*a-*b;
}
main()
{
int x=10,y=20;
swap(&x,&y);
printf("x= %d y = %d\n",x,y);
} | | 1 | | main()
{
signed int bit=512, i=5;
for(;i;i--)
{
printf("%d\n", bit = (bit >> (i - (i -1))));
}
}
a. 512, 256, 128, 64, 32
b. 256, 128, 64, 32, 16
c. 128, 64, 32, 16, 8
d. 64, 32, 16, 8, 4 | HCL | 1 | | 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( )
{
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 | | main()
{
int i, j;
scanf("%d %d"+scanf("%d %d", &i, &j));
printf("%d %d", i, j);
}
a. Runtime error.
b. 0, 0
c. Compile error
d. the first two values entered by the user | HCL | 1 | | void main()
{
int *i = 0x400; // i points to the address 400
*i = 0; // set the value of memory location pointed by i;
} | | 1 | | main()
{
int i=5;
printf("%d%d%d%d%d%d",i++,i--,++i,--i,i);
} | | 1 | | main()
{
printf("%d", out);
}
int out=100; | | 1 | | How to read a directory in a C program?
| | 4 | | main()
{
char a[4]="HELLO";
printf("%s",a);
} | | 1 | | void main()
{
void *v;
int integer=2;
int *i=&integer;
v=i;
printf("%d",(int*)*v);
} | | 1 | | int i,j;
for(i=0;i<=10;i++)
{
j+=5;
assert(i<5);
} | | 1 | | Is the following statement a declaration/definition. Find
what does it mean?
int (*x)[10]; | | 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 | | program to find the roots of a quadratic equation | HP | 3 | | void main()
{
int k=ret(sizeof(float));
printf("\n here value is %d",++k);
}
int ret(int ret)
{
ret += 2.5;
return(ret);
} | | 1 | | main()
{
struct date;
struct student
{
char name[30];
struct date dob;
}stud;
struct date
{
int day,month,year;
};
scanf("%s%d%d%d", stud.rollno, &student.dob.day,
&student.dob.month, &student.dob.year);
} | | 1 | | What is the hidden bug with the following statement?
assert(val++ != 0); | | 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 | | | | For more C Code Interview Questions Click Here |
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