C Interview Questions
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the factorial of non-negative integer n is written n! and is defined as follows: n!=n*(n-1)*(n-2)........1(for values of n greater than or equal to 1 and n!=1(for n=0) Perform the following 1.write a c program that reads a non-negative integer and computes and prints its factorial. 2. write a C program that estimates the value of the mathematical constant e by using the formula: e=1+1/!+1/2!+1/3!+.... 3. write a c program the computes the value ex by using the formula ex=1+x/1!+xsquare/2!+xcube/3!+....

Ignou,

2 16625

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.

1154

What are the uses of pre-processor directives?

2 3916




Write a function that accepts two numbers,say a and b and makes bth bit of a to 0.No other bits of a should get changed.

Wipro, Scientific Atlanta,

2 2526

Hi, main() { } Is a user defined function or Built in Functionn

Honeywell, Yahoo,

26 22143

program to find the magic square

Infosys,

1 3955

Program to trim a given character from a string.

NetApp,

5 4939

what is the mean of c languages.

Polaris,

1 2142




HOW TO FIND OUT THE RREVERS OF A GIVEN DIGIT NUMBER IF IT IS INPUT THROUGH THE KEYBORD BY USING C LANGUAGE

Wipro,

3 2686

how to find out the reverse number of a digit if it is input through the keyboard?

6 6044

atoi, which takes a string and converts it to an integer. 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

1282

write the function int countchtr(char string[],int ch);which returns the number of timesthe character ch appears in the string. for example the call countchtr("she lives in Newyork",'e') would return 3.

6 4005

a number whose only prime factors are 2,3,5, and 7 is call humble number,,write a program to find and display the nth element in this sequence.. sample input : 2,3,4,11,12,13, and 100.. sample output : the 2nd humble number is 2,the 3rd humble number is 3,the 4th humble number is ,the 11th humble number is 12, the 12th humble number is 14, the 13th humble number is 15, the 100th humble number is 450.

2687

a number is perfect if it is equal to the sum of its proper divisor.. 6 is perfect number coz its proper divisors are 1,2 and three.. and 1+2+3=6... a number is deficient if the sum of its proper divisor is less than the number.. sample: 8 is deficient, coz its proper divisors are 1,2 and 4, and 1+2+4=7. abundant number, if the sum of its proper divisor is greater than the number.. sample..12 is abundant coz 1+2+3+4+6=16 which is geater than 12. now write a program that prompts the user for a number, then determines whether the number is perfect,deficient and abundant..

1 4925

the number 138 is called well ordered number because the three digits in the number (1,3,8) increase from left to right (1<3<8). the number 365 is not well ordered coz 6 is larger than 5. write a program that wull find and display all possible three digit well ordered numbers. sample: 123,124,125,126,127,128,129,134 ,135,136,137,138,139,145,146,147 148 149,156.......789

5 13570


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Un-Answered Questions { C }

please explain clearly about execution of c program in detail,in which stage are the printf sacnf getting into exeecutable code

903


1) write a program to generate 1st n fibonacci prime numbers using Nested if 2) write a program to generate twin prime numbers from m to n using nested if 3) write a program to check whether a given integer is a strong number or not using nested if 4) Write a program to generate prime factors of a given integer using nested if 5)write a program to generate prime numbers from m to n using nested if 6)write a program to generate perfect numbers from m to n using nested if 7)write a program to generate the pallindromes from m to n using neste if 8)write a program to generate armstrong numbers from m to n using nested if 9)write a program to generate strong numbers from m to n using nested if

3255


Hai,I have done with my bachelor of commerce and planing to ms,please suggest me how to convince vo for shifting from commerce to computers. Visa on 8 DEC 2014  Npu university

867


 write a program that will open the file, count the number of occurences of each word in the the complete works of shakespeare.  You will then tabulate this information in another file.

1031


#include int main(){ int i=10; int *ptr=&i; *ptr=(int *)20; printf("%d",i); return 0; } Output: 20 can anyone explain how came the output is 20

274






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

839


why programs in c are running with out #include? some warnings are display in terminal but we execute the program we get answer why? eg: main() { printf("hello world "); }

470


7-Given an index k, return the kth row of the Pascal's triangle. For example, when k = 3, the row is [1,3,3,1]. For reference look at the following standard pascal’s triangle.

1310


code for replace tabs with equivalent number of blanks

807


write a program for the normal snake games find in most of the mobiles.

1125


write a program to print the consecutive repeated character from the given string... input string is : hhhhjkutskkkkkggggj output should be like this: hhhhkkkkkgggg anyone help me...

701


The purpose of this exercise is to benchmark file writing and reading speed. This exercise is divided into two parts. a). Write a file character by character such that the total file size becomes approximately >10K. After writing close the file handler, open a new stream and read the file character by character. Record both times. Execute this exercise at least 4 times b). Create a buffer capable of storing 100 characters. Now after generating the characters, first store them in the buffer. Once the buffer is filled up, store all the elements in the file. Repeat the process until the total file size becomes approximately >10K.While reading read a while line, store it in buffer and once buffer gets filled up, display the whole buffer. Repeat the exercise at least 4 times with different size of buffer (50, 100, 150 …). Records the times. c). Do an analysis of the differences in times and submit it in class.

850


How do we make a global variable accessible across files? Explain the extern keyword?

695


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.

1154


how many errors in c explain deply

878