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 16919

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.

1235

What are the uses of pre-processor directives?

2 3971




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.

Scientific Atlanta, Wipro,

2 2596

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

Honeywell, Yahoo,

26 22489

program to find the magic square

Infosys,

1 4011

Program to trim a given character from a string.

NetApp,

5 5041

what is the mean of c languages.

Polaris,

1 2192




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

Wipro,

3 2748

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

6 6126

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

1327

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 4155

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.

2762

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 4978

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 14041


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Un-Answered Questions { C }

What is your favorite subject?

184


2) Write a program that will help Air Traffic Control for an airport to view the sequence of flights ready for take-off. The airport can accommodate 10 flights waiting for take-off at any point in time. Each flight has a unique 3 digit numeric identifier.  Each time a flight takes-off, Air Traffic Control adds a flight to the waitlist. Each time a flight is added to the waitlist, the list of flights waiting to take-off must be displayed.  When a flight is cleared for take-off, Air Traffic Control removes the flight from the waitlist. Each time a flight takes-off, the list of flights waiting to take-off must be displayed.  Sequence of take-off is the sequence of addition to the waitlist

1841


The program will first compute the tax you owe based on your income. User is prompted to enter income. Program will compute the total amount of tax owed based on the following: Income Tax 0 - $45,000 = 0.15 x income $45,001 - $90,000 = 6750 + 0.20 x (income – 45000) $90,001 - $140,000 = 15750 + 0.26 x (income – 90000) $140,001 - $200,000 = 28750 + 0.29 x (income – 140000) Greater than $200,000 = 46150 + 0.33 x (income – 200000) Dollar amounts should be in dollars and cents (float point numbers with two decimals shown). Tax is displayed on the screen.

300


program to find error in linklist.(i.e find whether any node point wrongly to previous nodes instead of next node)

939


hi friends how r u as soon in satyam my interview is start but i m very confusued ta wat i do plz help me frndz wat can i do plz tell me some question and answers related with "C" which r asked in the interview .

1119






PROGRAM TO WRITE CONTENTS OF 1 FILE IN REVERSE TO ANOTHER FILE,PROGRAM TO COPY 1 FILE TO ANOTHER BY SPECIFYING FILE NAMES AS COMMAND LINE

783


write a program to copy the string using switch case?

1699


Write a C++ program to generate 10 integer numbers between - 1000 and 1000, then store the summation of the odd positive numbers in variable call it sum_pos, then find the maximum digit in this variable regardless of its digits length.

879


what is the difference between north western polytechnique university and your applied colleges?? please give ur answers for this. :)

1206


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.

1393


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

887


please give me some tips for the placement in the TCS.

976


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

2177


what are non standard function in c

709


What is the purpose of the following code? Is there any problem with the code? void send(int count, short *to, short *from) { /* count > 0 assumed */ register n = (count + 7) / 8; switch (count % 8) { case 0: do { *to = *from++; case 7: *to = *from++; case 6: *to = *from++; case 5: *to = *from++; case 4: *to = *from++; case 3: *to = *from++; case 2: *to = *from++; case 1: *to = *from++; } while (--n > 0); } }

1026