| Other C Interview Questions |
| |
| Question | Asked @ | Answers |
| |
| can you explain in brief what is "r+" mode in a file... i
know that it si used to read and modify rhe existing
content.... but explalanation about the file pointer in "r+"
mode i wann to know??????????? | Cognizent | 1 |
| How can I make a program in c to print 'Hello' without
using semicolon in the code? | C-DAC | 3 |
| difference of two no's with out using - operator | | 4 |
| what is the output?
#define fun(a,b,t) (g ##t=(a),(a)=(b),(b)=g##t)
float gfloat;
main()
{
float a=1.12,b=3.14;
fun (a,b,float);
printf("na=%4.2f,b=%4.2f",a,b);
}
A)Error in Defining Macro
B)a=1.12,b=3.14
C)a=3.14,b=1.12
D)None of the Above
| Accenture | 2 |
| what is meant by the "equivalence of pointers and arrays" in
C? | Satyam | 3 |
| 5. What kind of sorting is this:
SORT (k,n)
1.[Loop on I Index]
repeat thru step2 for i=1,2,........n-1
2.[For each pass,get small value]
min=i;
repeat for j=i+1 to N do
{
if K[j]<k[min]
min=j;
}
temp=K[i];K[i]=K[min];K[min]=temp;
3.[Sorted Values will be returned]
A)Bubble Sort
B)Quick Sort
C)Selection Sort
D)Merge Sort
| Accenture | 1 |
| What is the difference between null pointer and the void
pointer? | | 2 |
| f(x,y,z)
{
y = y+1;
z = z+x;
}
main()
{
int a,b;
a = 2
b = 2;
f(a+b,a,a);
print a;
}
what is the value of 'a' printed | | 4 |
| the number 138 is called well ordered number because the
three digits in the number (1,3,8) increase from left to right
(1<3<8). the number 365 is not well ordered coz 6 is larger
than 5.
write a program that wull find and display all possible
three digit well ordered numbers.
sample:
123,124,125,126,127,128,129,134
,135,136,137,138,139,145,146,147
148
149,156.......789 | | 3 |
| explain memory layout of a C program | | 1 |
| a=0;
b=(a=0)?2:3;
a) What will be the value of b? why
b) If in 1st stmt a=0 is replaced by -1, b=?
c) If in second stmt a=0 is replaced by -1, b=?
| Geometric-Software | 5 |
| what is a static function | Satyam | 9 |
| #define swap1(a,b) a=a+b;b=a-b;a=a-b;
main()
{
int x=5,y=10;
swap1(x,y);
printf("%d %d\n",x,y);
swap2(x,y);
printf("%d %d\n",x,y);
}
int swap2(int a,int b)
{
int temp;
temp=a;
b=a;
a=temp;
return;
}
what are the outputs? | Ramco | 4 |
| C program code
int zap(int n)
{
if(n<=1)then zap=1;
else zap=zap(n-3)+zap(n-1);
}
then the call zap(6) gives the values of zap
[a] 8 [b] 9 [c] 6 [d] 12 [e] 15
| Wipro | 4 |
| What is false about the following
A compound statement is
a.A set of simple statments
b.Demarcated on either side by curly brackets
c.Can be used in place of simple statement
d.A C function is not a compound statement.
| TCS | 1 |
| main()
{
char *p1="Name";
char *p2;
p2=(char *)malloc(20);
while(*p2++=*p1++);
printf("%s\n",p2);
}
| CitiGroup | 3 |
| void main()
{
int i=5;
printf("%d",i++ + ++i);
} | ME | 6 |
| What is difference between the following 2 lines….
int temp = (int)(0x00);
int temp = (0x00int);
| Bosch | 3 |
| which one is not preprocessor directive
a)#if b)#elif c)#undef d)#pragma
| Wipro | 11 |
| what does exit() do? | Cadence | 3 |
| |
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