C Interview Questions
Questions Answers Views Company eMail

write a program to swap Two numbers without using temp variable.

Wipro, TCS, HCL, Satyam, Focus, Microsoft, HP, Infosys, Mannar Company, EMC, GreyB, Hitech, Huawei, Miles Software, Odessa Technologies,

75 146133

Can you think of a way when a program crashed before reaching main? If yes how?

2 4485

Write the program for displaying the ten most frequent words in a file such that your program should be efficient in all complexity measures.

Google,

3 20921




Consider a language that does not have arrays but does have stacks as a data type.and PUSH POP..are all defined .Show how a one dimensional array can be implemented by using two stacks.

Google,

3 6731

Technical Ability Test: This was difficult. three questions to be attempted in 60 min. The Coplete Technical Paper was as follows: Write the Pseudo code for the following: 1. Wrie a function which returns the most frequent number in a list of integers. Handle the case of more than one number which meets this criterion. public static int[] GetFrequency(int[] list) 2. Counting in Lojban, an artificial language developed over the last fourty years, is easier than in most languages The numbers from zero to nine are: 0 no 1 pa 2 re 3 ci 4 vo 5 mk 6 xa 7 ze 8 bi 9 so Larger numbers are created by gluing the digit togather. For Examle 123 is pareci Write a program that reads in a lojban string(representing a no less than or equal to 1,000,000) and output it in numbers. 3. Where now stands that small knot of villages known as the Endians, a mighty forest once stood. Indeed, legand has it that you could have stoodon the edge of the wood and seen it stretch out for miles, were it not for the trees getting in the way. In one section of the forest, the trees stood in a row and were of hight from 1 to n, each hight occurring once and once only. A tree was only visible if there were no higher trees before it in the row. For example, if the heights were 324165, the only visible trees would have been those of height 3,4 & 6. Write a Program that takes an array of integers representing the heights of the trees in the row as input and prints the list of the visible trees. //////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////// ////////////////// Ques1: Given an array containing k nos in the range 1..n and another scratch array of size n. Write an program to remove the duplicates from the array. Ques2: Given a table of the form: Product Sold on A 1/1/1980 B 1/1/1980 C 1/1/1980 A 1/1/1980 B 1/1/1980 C 2/1/1980 A 2/1/1980 There are 30 products and 10,000 records of such type. Also the month period during which sales happened is given to u. Write the program to display the result as: Product Month No. of copies A January 12 A February 15 A March 27 B January 54 B February 15 B March 10 C January 37 Ques3: Definition of priority queue was given. We have to implement the priority queue using array of pointers with the priorities given in the range 1..n. The array could be accessed using the variable top. The list corresponding to the array elements contains the items having the priority as the array index. Adding an item would require changing the value of top if it has higher priority than top. Extracting an item would require deleting the first element from the corresponding queue. The following class was given: Ques4: An array of size 5X5 is given to us. The elements from 1 to 25 are to be inserted in the array, such that starting from a particular position for an element i, the next element i+1can be inserted only at the mentioned positions (u,v), and if these all positions are occupied then it returns giving a count of how many positions have been occupied in the array: //////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////// ////////////////// Example: if the starting element is 1 with the given positions (1,2), then next element 2 can be placed at any one of the positions marked with *. _ _ _ _ _ 1 _ _ _ * _ _ _ _ _ _ _ * _ _ * _ _ _ _ 2. Four questions of programming in c++, questions were:( 1:30 hr) a) Bubble sort through recursion b) Display Pattern: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 … c) Perform the functionality of 2-D array through 1-D array and in it the functions to be performed were: (1) Display the array in 2-D format (2) Display a particular element (3) Display a particular row (4) Display a particular column d) Give an efficient program for string matching like: Text: this is the code in the text which you have to search by code Pattern: Code Count the no. of occurrences of the pattern to be searched //////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////// ////////////////// a) suppose u r given a 4*3 rectangle like (take these values from user) Now u have to calculate the no. of squares in this rectangle like: No. of squares of dimension 1 is 12 No. of squares of dimension 2 is 6 No. of squares of dimension 3 is 2 No. of squares of dimension 4 is 0 Total no. of squares are 20. b) Suppose u r given a string. U have to find the occurance of the characters A-Z in that string. Each character must appear in the string and must appear only once. If It that occurs in string more than one time return 1 showing it is a perfect string otherwise return 0 showing it is not a perfect string. c) Suppose u r given 10000 marks. U have to pick up top 20 top marks from them and display it on the screen. (Use the optimal sorting algorithm) d) Suppose u have a chess board. U have to insert 8 queens on the chessboard in the style that the queens don’t intersect in the diagonals, columns and rows. If they intersect return 1 else return 0.(that is no more than one queen should be present either in row or column or diagonals.) If the queen is inserted at a position in the chessboard, its count is 1.

Nagarro,

2604

2. Counting in Lojban, an artificial language developed over the last fourty years, is easier than in most languages The numbers from zero to nine are: 0 no 1 pa 2 re 3 ci 4 vo 5 mk 6 xa 7 ze 8 bi 9 so Larger numbers are created by gluing the digit togather. For Examle 123 is pareci Write a program that reads in a lojban string(representing a no less than or equal to 1,000,000) and output it in numbers.

Nagarro,

3 5627

what is volatile in c language?

Honeywell, Cap Gemini, TCS, HCL, Tech Mahindra,

9 24369

what is the diference between pointer to the function and function to the pointer?

Infosys,

2 3467




what is the use of call back function in c?tell me with example

Bosch,

2 14883

difference between semaphores and mutex?

1 8458

write a fuction for accepting and replacing lowercase letter to'Z' with out using inline function.

Temenos,

5 8745

related to rdbms query .

2 5019

what is difference between array and structure?

IBM, Motorola, CTS, HCL, Google, TCS, College School Exams Tests,

44 109646

Given an array of length N containing integers between 1 and N, determine if it contains any duplicates.

SilverKey,

3 8209

Given an array of numbers, except for one number all the others occur twice. Give an algorithm to find that number which occurs only once in the array.

6 8559


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Un-Answered Questions { C }

if the area was hit by a virus and so the decrease in the population because of death was x/3 and the migration from other places increased a population by 2x then annually it had so many ppl. find our the population in the starting.

3344


Want to know how to write a C program that connects to a MySQL server and checks if the InnoDB plug-in is installed on it. If so, your program should print the total number of disk writes by MySQL.

853


Input is "rama loves rajesh and rajesh Loves rama also and rajesh wear gloves and bloves" To print output is count the numbers of times repeted the word love without case sensitive.

779


Which driver is a pure java driver

205


All technical questions

779






write a program to convert a expression in polish notation(postfix) to inline(normal) something like make 723+* (2+3) x 7 (not sure) just check out its mainly printing expression in postfix form to infix.

2580


‘SAVEPOINT’ and ‘ROLLBACK’ is used in oracle database to secure the data comment. Give suitable examples of each with sql command.

1204


how logic is used

771


what are the 10 different models of writing an addition program in C language?

723


4-Take two sets of 5 numbers from user in two arrays. Sort array 1 in ascending and array 2 in descending order. Perform sorting by passing array to a function mySort(array, sortingOrder). Then multiply both the arrays returned from function, using metric multiplication technique in main. Print result in metric format.

895


write a programe to accept any two number and check the following condition using goto state ment.if a>b,print a & find whether it is even or odd and then print.and a

718


GIVEN A FLOATING POINT NUMBER HOW IS IT ACTUALLY STORED IN MEMORY ? CAN ANYONE EXPLAIN?? THE 32 BIT REPRESENTATION OF A FLOATING POINT NUMBER ALLOTS: 1 BIT-SIGN 8 BITS-EXPONENT 23 BITS-MANTISSA

723


given post order,in order construct the corresponding binary tree

1644


how can use subset in c program and give more example

789


what are bit fields? What is the use of bit fields in a structure declaration?

786