C Code Interview Questions
Questions Answers Views Company eMail

Given an array of size N in which every number is between 1 and N, determine if there are any duplicates in it. You are allowed to destroy the array if you like.

ABC, eBay, Goldman Sachs, Google, HUP, Microsoft, TATA,

21 45785

Write a routine to draw a circle (x ** 2 + y ** 2 = r ** 2) without making use of any floating point computations at all.

Mentor Graphics, Microsoft,

2 21373

Given only putchar (no sprintf, itoa, etc.) write a routine putlong that prints out an unsigned long in decimal.

Fusion Systems GmbH,

6 19189

Give a one-line C expression to test whether a number is a power of 2.

Microsoft,

10 23774

Given an array of characters which form a sentence of words, give an efficient algorithm to reverse the order of the words (not characters) in it.

Wipro,

2 9954

Give a very good method to count the number of ones in a 32 bit number. (caution: looping through testing each bit is not a solution)

Microsoft,

7 28207

program to Reverse a linked list

Aricent, Microsoft, Ness Technologies,

12 56976

write a program to Insert in a sorted list

Microsoft,

4 13457

Program to Delete an element from a doubly linked list.

College School Exams Tests, Infosys,

4 32136

Write a function to find the depth of a binary tree.

Adobe, Amazon, EFI, Imagination Technologies,

13 86026

Write a routine that prints out a 2-D array in spiral order

Microsoft,

3 16508

Write, efficient code for extracting unique elements from a sorted list of array. e.g. (1, 1, 3, 3, 3, 5, 5, 5, 9, 9, 9, 9) -> (1, 3, 5, 9).

Intel, Microsoft, TCS,

13 35141

Given a list of numbers ( fixed list) Now given any other list, how can you efficiently find out if there is any element in the second list that is an element of the first list (fixed list)

Disney, Google, ZS Associates,

3 13252

Print an integer using only putchar. Try doing it without using extra storage.

2 19634

How to swap two variables, without using third variable ?

AB, ADP, BirlaSoft, Cisco, Cygnet Infotech, HCL, Hewitt, Honeywell, HP, IBM, Infosys, Manhattan, Microsoft, Mobius, Percept, Satyam, SofTMware, TCS, Wipro, Yamaha,

104 222989


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Un-Answered Questions { C Code }

Given a spherical surface, write bump-mapping procedure to generate the bumpy surface of an orange

2849


why do you use macros? Explain a situation where you had to incorporate macros in your proc report? use a simple instream data example with code ?

2248


How can you relate the function with the structure? Explain with an appropriate example.

2909


How can I Create a C program in splitting set of characters to specific subsets. Example: INPUT SET OF CHARACTERS: Therefore, my dear brothers and sisters, stand firm. Let nothing move you. Always give yourselves fully to the work of the Lord, because you know that your labor in the Lord is not in vain. SPLIT INTO HOW MANY CHARACTERS PER SUBSETS: 10 OUTPUT: Therefore, my dear b rothers an d sisters, stand fir m. Let not hing move you. Alway s give you rselves fu lly to the work of t he Lord, b ecause you know that your labo r in the L ord is not in vain.

1916


A program that will create a movie seat reservation. The program will display the summary seats and its status. The user will be ask what seat no. to be reserved, then it will go back again to the summary to display the updated seat status. If the seat no. is already reserved then it will prompt an error message. And also if the input seat no is out of range then it will also prompt an error message. The program is continuously running. Termination of the program will depends on how the programmer will apply. Sample output: Movie Seats Reservation Summary of Seats: Seat 1: Available Seat 2: Available Seat 3: Available Seat 4: Available Seat 5: Available Enter seat no. (Press 0 to terminate Or the assigned seat capacity) : 1 Movie Seats Reservation Summary of Seats: Seat 1: Reserve Seat 2: Available Seat 3: Available Seat 4: Available Seat 5: Available Enter seat no. (Press 0 to terminate Or the assigned seat capacity) : 6 The Seat no. is out of range! Movie Seats Reservation Summary of Seats: Seat 1: Reserve Seat 2: Available Seat 3: Available Seat 4: Available Seat 5: Available Enter seat no. (Press 0 to terminate Or the assigned seat capacity) : 1 The Seat no. is already reserved! Movie Seats Reservation Summary of Seats: Seat 1: Reserve Seat 2: Available Seat 3: Available Seat 4: Available Seat 5: Available Enter seat no. (Press 0 to terminate Or the assigned seat capacity) : 0 GoodBye... Thank You!!!

1827






Cluster head selection in Wireless Sensor Network using C programming language.

3092


Design an implement of the inputs functions for event mode

2948


how to programme using switch statements and fuctions, a programme that will output two even numbers, two odd numbers and two prime numbers of the users chioce.

2130


What is data _null_? ,Explain with code when u need to use it in data step programming ?

2806


3) Int Matrix of certain size was given, We had few valu= es in it like this. =97=97=97=97=97=97=97=97=97=97=97 1 = | 4 | | 5 | &= nbsp; | 45 =97=97=97=97=97=97=97=97=97=97=97 &n= bsp; | 3 | 3 | 5 | = | 4 =97=97=97=97=97=97=97=97=97=97=97 34 |&nbs= p; 3 | 3 | | 12 | &= nbsp; =97=97=97=97=97=97=97=97=97=97=97 3 | &nbs= p; | 3 | 4 | = | 3 =97=97=97=97=97=97=97=97=97=97=97 3 | = ; | | | = ; 3 | =97=97=97=97=97=97=97=97=97=97=97 &= nbsp; | | 4 | = ; | 4 | 3 We w= ere supposed to move back all the spaces in it at the end. Note: = If implemented this prog using recursion, would get higher preference.

3313


How do you verify if the two sentences/phrases input is an anagram using predefined functions in string.h and by using arrays?

2006


In a gymnastic competition, scoring is based on the average of all scores given by the judges excluding the maximum and minimum scores. Let the user input the number of judges, after that, input the scores from the judges. Output the average score. Note: In case, more than two judges give the same score and it happens that score is the maximum or minimum then just eliminate two scores. For example, if the number of judges is 5 and all of them give 10 points each. Then the maximum and minimum score is 10. So the computation would be 10+10+10, this time. The output should be 10 because 30/3 is 10.

2365


write a function to give demostrate the functionality of 3d in 1d. function prototye: change(int value,int indexX,int indexY,int indexZ, int [] 1dArray); value=what is the date; indexX=x-asix indexY=y-axis indexZ=z-axis and 1dArray=in which and where the value is stored??

4127


Set up procedure for generating a wire frame display of a polyhedron with the hidden edges of the object drawn with dashed lines

3013


What is full form of PEPSI

1848