C Interview Questions
Questions Answers Views Company eMail

Write a C/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 maximum number of concurrent threads that the InnoDB plug-in can create.

IBM,

728

Go through this linked list concept.While traversing through the singly linked list sometimes the following code snippet "while(head != NULL)" is used and other times "while(head->link != NULL)"is used(Here head is the pointer pointing to the first node,node has two parts data part and link part).What is the difference between head != NULL and Head->link != NULL and in which situation are they used?

Oracle,

1 1731

Which weighs more, a gram of feathers or a gram of gold?

2 2525




There are 8 billiard balls, and one of them is slightly heavier, but the only way to tell was by putting it on a weighing scale against another. What's the fewest number of times you'd have to use the scale to find the heavier ball?

Microsoft, TCS,

5 4647

I didn't count the ducks that I saw in line, but I do remember that one duck was in front of two ducks, another duck behind two ducks. How many ducks did I see?

2 3940

program in c to print 1 to 100 without using loop

Wipro,

9 5601

. Write a program to get a string and to convert the 1st letter of it to uppercase

HTC,

2 3695

what is a function method?give example?

1029




Code for calculating square root without using library function, of math.h

IBM,

4 20788

main() { int a; a=++100; printf("%d",a); getch(); }

4 2185

print the palindrome numbers in between 0 to n

1 1800

write a program to reverse a every alternetive words in a string in a place. EX: Input is "this is the line of text" Output should be "shit is eht line fo text" Please any one tell me code for that.

TCS,

777

write a c program that if the given number is prime, and their rearrangement(permute) of that number is also prime. Ex: Input is "197" is prime Output: 791,917,179 is also prime. Please any one tell me tha code for that

3 2530

void main(int n) { if(n==0) return; main(--n); printf("%d ",n); getch(); } how it work and what will be its output...............it any one know ans plz reply

652

What is the difference between specifying a constant variable like with constant keyword and #define it? i.e what is the difference between CONSTANT FLOAT A=1.25 and #define A 1.25

655


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Un-Answered Questions { C }

You are to write your own versions of strcpy() and strlen (). Call them mystrcpy() and mystrlen(). Write them first as code within main(), not as functions, then, convert them to functions. You will pass two arrays to the function in the case of mystrcpy(), the source and target array.

957


hi any body pls give me company name interview conduct "c" language only

771


what is a function method?give example?

1029


how do you write a function that takes a variable number of arguments? What is the prototype of printf () function?

712


Write a program to display all the prime nos from 1 to 1000000, your code should not take time more than a minute to display all the nos.

808






write a program that reads lines(using getline), converts each line to an integer using atoi, and computes the average of all the numbers read. also compute the standard deviation.

1064


Suppose we have a table name EMP as below. We want to perform a operation in which, I want to change name ‘SMITH’ from as ‘SMITH JAIN’. Also I want to change the name of the column from ENAME to E_NAME. EMPNO ENAME JOB MGR HIREDATE SAL 7369 SMITH Coder 7902 17-DEC-80 800 7499 ALLEN SALESMAN 7698 20-FEB-81 1600 7521 WARD SALESMAN 7698 22-FEB-81 1250

675


how do you programme Carrier Sense Multiple Access

752


please help me..... please codes and flowchart plz turbo c lang po yan.....please asap response... 3. Make an astrology program. The user types in his or her birthday (month, day, and year as integer), and the program responds with the user’s zodiac sign, horoscope, and other information related to it. If the user’s birth year falls into a leap year, your program should display an appropriate message for it. NOTES: Conditional Statements: it should be with graphics

2030


write a program to concatenation the string using switch case?

754


#define MAX 3 main() { printf("MAX = %d ",MAX ); #undef MAX #ifdef MAX printf("Vector Institute”); #endif }

1668


How to write a code for reverse of string without using string functions?

763


Topics: Structures, Arrays, Searching and Sorting Assume there is a small mobile computer device including a hard disk and a slot for a memory card. The device shall be used to backup photos e.g. during holiday. Every time a memory card is connected all photos of the card are copied into a new folder automatically. And your task is to develop some basic controlling software to show, add, remove, search and sort the directories of photos. Step by Step Implementation 1.Define two symbolic constants, one to hold the total volume of the disk (e.g. VOLUME) and another one to hold the number of entries the files system of the device can handle (MAXFOLD). 2.Define a new structure data type named DATE to store a date consisting of year, month and day as unsigned values. 3.Define an other structure data type FOLDER to store the information of one folder of photos: ◦A title as character array of appropriate length ◦The location (event) the photos are taken as character array of appropriate length ◦The date of the day the photos are copied to the disk using the just defined data type DATE ◦The number of photos as natural number ◦And the size of the folder in MB as floating point value 4.Define the following global variables and initialise them: ◦disk as an array with MAXFOLD elements of data type FOLDER ◦folders as natural value to count the number of folders currently stored at the disk (valid elements in the array) TEST: Now you should be able to compile the code the first time without any warning or error. In the menu only "p" to print and "q" to quit will work!. 5.Now complete the functions given by their prototype: float freeSpace ();The function has to calculate the sum of the size component of all elements currently stored in the disk array. The function shall return the free space of the disk by the difference between the available total volume and the calculated sum. TEST: To test this function you only need to uncomment printing the "statusline" at the function actionmenu(). Compare the calculated value with a manual calculation of the example values given above. unsigned isBefore (DATE, DATE);The function checks if one date is before the other. There are 3 different possibilities which have to be handled. Imagine for example these 3 different combinations of values: ◦2010-01-01 : 2010-01-02 ◦2010-01-01 : 2010-02-01 ◦2010-01-01 : 2009-01-01 The function shall just return the result of the comparison. unsigned isEqual (DATE, DATE);The function checks if one date is equal to the other, all components have to be compared. The function shall just return the result of the comparison. int findByDate (DATE);As the array is should be kept in order (sorted by date) implement a binary search for a folder by its date here. You need only to adapt the binary search we used in the exercise. Use the 2 comparing functions above where appropriate. The function shall return the index of the element which was found or -1. TEST: Now you can try searching a folder by date via the "s" in the menu. Activate the corresponding part in the main function. int isSpaceLeft (FOLDER);This function compares the free space of the disk with the size of folder given with the parameter list. The function shall return 1 if there is enough space to add the folder, otherwise 0 (just the result of the comparison). void SortByDate ();This function shall implement the InsertionSort using the component date as key. Use the provided algorithm/souce code of the exercise as template. If you need a comparison between dates, use the function isBefore you have written again. void addFolder (FOLDER);The function has to check if the disk has additional capacities to add the new folder (number of folders and space left). If at least one of these conditions is false print an error message and return -1. Else there has to be added an other test to avoid 2 folder elements with the same date (use the findByDate function here. If there is no folder with the new date simply attach the new folder at the end of the array and call the sorting algorithm afterwards to keep the order in the array. TEST: Now you can try to add a folder via the "a" in the menu. Activate the corresponding part in the main function. void delDir (int);This function removes one element of the disk array. The input parameter contains the index of the element to delete. Deletion can simply be done by moving all elements at the right one to the left (overwriting the element to delete. The function may get a -1. This has to be checked first (certainly there is nothing to delete then!) Don't forget to decrement the counter of elements at the end. TEST: Now you can try to remove a folder by date via the "r" in the menu. Activate the corresponding part in the main function. unsigned findAllOfLocation(char[], FOLDER[]);This is an optional additional task: The function shall find all elements with the given value for the component location (first input parameter). The array elements which are found have to be added to the FOLDER array (second input parameter). As this parameter is an array we can use the result later in the main function. There kernel of function implements a modified linear search on the disk array (it does not stop if one element is found bat continues search until the location of all elements is checked). The finally function shall return the number of elements found in the disk array. TEST: Now you can try to add a folder by date via the "l" in the menu. Activate the corresponding part in the main function.

1115


write a c program to print the next of a particular no without using the arithmetic operator or looping statements?

2012


Write a c program to demonstrate character and string constants?

872