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Frequently Asked C interview questions and answers for freshers

(#M40018711) C QUESTION C- QUESTIONS Keep an EYE

To scan a and b given below, which of the following scanf() statement will you use?
#include
float a;
double b;

Options
1) scanf("%f %f", &a, &b);
2) scanf("%Lf %Lf", &a, &b);
3) scanf("%f %Lf", &a, &b);
4) scanf("%f %lf", &a, &b);

Asked In C (6 years ago)

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(#M40166240) C QUESTION juspay interview question Keep an EYE

You are given a forest (it may contain a single tree or more than one tree) with N nodes.

Each node is given an integer value 0 to (N­-1).

You have to find:
The depth of forest at which maximum number of nodes are present.
N can be very large. Aim for an algorithm with a time complexity of O(N).

INPUT FORMAT

An integer T, denoting the number of testcases, followed by 2T lines, as each testcase will contain 2 lines.
First line of each testcase has the value of N.
Second line of each testcase has list of N values where the number at index i is the parent of node i. The parent of root is -1. ( The index has the range [0, N­-1] ).

OUTPUT FORMAT

For each testcase given, output a single line that has the depth of forest at which maximum number of nodes are present. If multiple depths has same number of nodes, then deepest depth should be selected.

SAMPLE INPUT

2

6

5 -1 1 1 5 2

13

4 3 -1 -1 1 2 7 3 1 4 2 1 2



SAMPLE OUTPUT

3

1

Asked In C Mohamed yasin (4 Months ago)

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(#M40029221) C QUESTION C Keep an EYE

main()
{
static int var = 5;
printf("%d ",var--);
if(var)
main();
}
find output

Asked In C MAN (6 years ago)

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(#M40018705) C QUESTION C- QUESTIONS Keep an EYE

Which of the following is the correct order of evaluation for the below expression?
z = x + y * z / 4 % 2 - 1

Options
1) * / % + - =
2) = * / % + -
3) / * % - + =
4) * % / - + =

Asked In C (6 years ago)

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(#M40018722) C QUESTION C- QUESTIONS Keep an EYE

In C, if you pass an array as an argument to a function, what actually gets passed?

Options
1) Value of elements in array
2) First element of the array
3) Base address of the array
4) Address of the last element of array

Asked In C (6 years ago)

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(#M40156423) C QUESTION Keep an EYE

int main()
{
printf(“%s %s”,(“Zoho” “corp”), (“Campus” ”corpp”),(“Zoho” “Corporation”);
}

Asked In C sanju (3 years ago)

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(#M40028783) C QUESTION Technical Question on c Keep an EYE

Predict the output or error(s) for the following programmes:
void main()
{i
nt const * p=5;
printf("%d",++(*p));
}
Answer: Compiler error: Cannot modify a constant value.
Explanation: p is a pointer to a "constant integer". But we tried to change the value of the
"constant integer".
38. main()
{
char s[ ]="man";
int i;
for(i=0;s[ i ];i++)
printf("n%c%c%c%c",s[ i ],*(s+i),*(i+s),i[s]);
}

Asked In C MAN (6 years ago)

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(#M40031857) C QUESTION Keep an EYE

What is the output of this C code?

#include
int main()
{
int i = 10;
void *p = &i;
printf("%dn", (int)*p);
return 0;
}
a) Compile time error
b) Segmentation fault/runtime crash
c) 10
d) Undefined behaviour

Asked In C Rajendra Singh (5 years ago)

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(#M40152256) C QUESTION Keep an EYE

Which of the following is the correct syntax for declaration of a structure?
Select one:
struct_name;
Struct struct_name;
struct
{
Struct_name;
}
struct struct_name;

Asked In C priya (4 years ago)

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(#M40018723) C QUESTION C- QUESTIONS Keep an EYE

What will happen if in a C program you assign a value to an array element whose subscript exceeds the size of array?

Options
1) The element will be set to 0.
2) The compiler would report an error.
3) The program may crash if some important data gets overwritten.
4) The array size would appropriately grow.

Asked In C (6 years ago)

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