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Frequently Asked C interview questions and answers for freshers

(#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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(#M40165491) C QUESTION Keep an EYE

Consider the following code:

for i= m to n increment 2
{ print "Hello!" }

Assuming m < n and exactly one of (m,n) is even, how many times will Hello be printed?
Option 1 : (n - m + 1)/2
Option 2 : 1 + (n - m)/2
Option 3 : 1 + (n - m)/2 if m is even, (n - m + 1)/2 if m is odd
Option 4 : (n - m + 1)/2 if m is even, 1 + (n - m)/2 if m is odd

Asked In C Dastagiri Sha (1 year ago)

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(#M40165900) C QUESTION write a program for replace characters in astring with other characters Keep an EYE

ex:apple
op:other characters wat u give

Asked In C Divya (10 Months ago)

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(#M40029231) C QUESTION C Keep an EYE

output??
#define int char
main()
{i
nt i=65;
printf("sizeof(i)=%d",sizeof(i));
}
Answer: sizeof(i)=1
Explanation: Since the #define replaces the string int by the macro char
50. main()
{i
nt i=10;
i=!i>14;
Printf ("i=%d",i);
}
Answer: i=0
Explanation: In the expression !i>14 , NOT (!) operator has more precedence than ‘ >’ symbol. !
is a unary logical operator. !i (!10) is 0 (not of true is false). 0>14 is false (zero).

Asked In C MAN (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 (2 Months ago)

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(#M40029374) C QUESTION C Keep an EYE

Q. In header files whether functions are declared or defined?

A. Functions are declared within header file. That is function prototypes exist in a header file,not function bodies. They are defined in library (lib).

Asked In C MAN (5 years ago)

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(#M40125974) C QUESTION Main function Keep an EYE

Function main is the starting point of execution of a program. Which of the following options shall help in making an executable program without the
use of main function in the program?
1. Any function can be made and marked as starting point using a language dependent syntax
2. Two macros can be used. One to hold the name of a function and its working and the other to call the first macro
3. Any program without a main function shall not do anything but can only produce a blank screen
4. It is not possible to run a program without a main function in a program

Asked In C Rinkalkumar Kalola (4 years ago)

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(#M40018741) C QUESTION C- QUESTIONS Keep an EYE

What will be the output of the program?
#include
int main()
{
char str[]="C-program";
int a = 5;
printf(a >10?"Psn":"%sn", str);
return 0;
}
Options
1) C-program
2) Ps
3) Error
4) None of above

Asked In C (6 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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(#M40018748) C QUESTION C- QUESTIONS Keep an EYE

In which order do the following gets evaluated
1. Relational
2. Arithmetic
3. Logical
4. Assignment

Options
1) 2134
2) 1234
3) 4321
4) 3214

Asked In C (6 years ago)

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