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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 65875

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 35442

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

Fusion Systems GmbH,

6 34398

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

Microsoft,

10 40470

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 11608

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 43898

program to Reverse a linked list

Aricent, Microsoft, Ness Technologies,

12 74455

write a program to Insert in a sorted list

Microsoft,

4 15574

Program to Delete an element from a doubly linked list.

College School Exams Tests, Infosys,

4 46551

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

Adobe, Amazon, EFI, Imagination Technologies,

13 103570

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

Microsoft,

3 18197

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 40530

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 27287

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

2 34029

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 265842


Post New C Code Questions

Un-Answered Questions { C Code }

write a c program to input initial & final time in the format hh:mm and find the time intervel between them? Ex inputs are initial 06:30 final 00:05 and 23:22 final 22.30

2758


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

3403


how to create a 3x3 two dimensional array that will give you the sums on the left and bottom columns

3702


why nlogn is the lower limit of any sort algorithm?

2895


Write a Program in 'C' To Insert a Unique Number Only. (Hint: Just Like a Primary Key Numbers In Database.) Please Some One Suggest Me a Better Solution for This question ??

2540


Develop a routine to reflect an object about an arbitrarily selected plane

3694


write a program for area of circumference of shapes

2630


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.

2731


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

3515


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

3809


What is the difference between proc means and proc tabulate ? explain with a simple example when you have to use means or tabulate?

4620


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.

3008


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 ?

2823


#include int main(void) { int a=4, b=2; a=b<>2 ; printf("%d",a); return 0; }

1692


Can you send Code for Run Length Encoding Of BMP Image in C Language in linux(i.e Compression and Decompression) ?

4460