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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 (7 years ago)

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(#M40018713) C QUESTION C- QUESTIONS Keep an EYE

The keyword used to transfer control from a function back to the calling function is

Options
1) switch
2) goto
3) go back
4) return

Asked In C (7 years ago)

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(#M40157098) C QUESTION Where's my car! Keep an EYE

he year is 2050. The population surge has taken over our metropolitan cities. High rise buildings are on a rise. And as usual, with the increase in population, the problem of parking in the city has increased manifold.

To reduce the problem of parking, the government has built multi-storey parking lots all over the city. Imagine the city as an X-Y grid. And there are roads connecting all the neighbouring grid points except diagonals. And there is a pre-defined intersection interval 'I' for parking lots such that at every I th intersection, there is a parking lot, starting from (0,0). For example, for a city of grid size 4x7 and I=3, you'll have 6 parking lots at (0,0), (0,3), (0,6), (3,0), (3,3) and (3,6).

Asked In C jeyapriya (3 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 (5 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 (11 Months ago)

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(#M40156418) C QUESTION memory Keep an EYE

A 10-bit unsigned integer has the following range:
Options:
[1] 0 to 1000
[2] 0 to 1024
[3] 1 to 1025
[4] 0 to 1023

Asked In C JANARTHANAN RAM (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 (7 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 (7 years ago)

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(#M40032280) C QUESTION Keep an EYE

Which header file should be included to use functions like malloc() and calloc()?

Options
1) memory.h
2) stdlib.h
3) string.h
4) dos.h

Asked In C Mallela Srilakshmi (6 years ago)

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(#M40031339) C QUESTION Problem solving Keep an EYE

Q. What is the output of the following program?

void main(){
int a=1;
while(a++ <= 1)
while(a++ <= 2);
printf("%d",a);
}

Asked In C Dinesh thatti (6 years ago)

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