C Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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 total number of disk writes by MySQL

1829

write a program to find the given number is prime or not

Accenture, Vasutech,

2 4770

HOW TO SOLVE A NUMERICAL OF LRU IN OS ??????

2698

What is C++

4 5560

write a c programming using command line argument,demonstrate set operation(eg;union,intersection,difference) example output is c:>setop 12 34 45 1 union 34 42 66 c:>setop 12 34 1 42 66 c:>setop 12 34 diff 12 56 67 78 setop 12 34

2187

You have given 2 array. You need to find whether they will create the same BST or not. For example: Array1:10 5 20 15 30 Array2:10 20 15 30 5 Result: True Array1:10 5 20 15 30 Array2:10 15 20 30 5 Result: False One Approach is Pretty Clear by creating BST O(nlogn) then checking two tree for identical O(N) overall O(nlogn) ..we need there exist O(N) Time & O(1) Space also without extra space .Algorithm ?? DevoCoder guest Posted 3 months ago # #define true 1 #define false 0 int check(int a1[],int a2[],int n1,int n2) { int i; //n1 size of array a1[] and n2 size of a2[] if(n1!=n2) return false; //n1 and n2 must be same for(i=0;ia1[i+1]) && (a2[i]>a2[i+1]) ) ) return false; } return true;//assumed that each array doesn't contain duplicate elements in themshelves }

Facebook,

3189

How to add two numbers without using semicolon at runtime

2 7642

how to write a program which adds two numbers without using semicolon in c

2 6698

void main() { for(; 0 ;) ... { printf("hello"); ... } getch(); }

1 3688

which of 'arrays' or 'pointers' are faster?

5 11980

void main() { int x=25,y=32; clrscr(); x=x++ + y++; y=++x + ++y; printf("%d%d",x,y); }

5 7686

1.int a=10; 2.int b=20; 3. //write here 4.b=30; Write code at line 3 so that when the value of b is changed variable a should automatically change with same value as b. 5.

2156

which operator is known as dummy operator in c?

Wipro,

2 12889

why array index always starts from zero??

TCS,

4 7485

all c language question

Wipro,

2442

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Un-Answered Questions { C }

What are local static variables?

1154

List some basic data types in c?

1029

Explain what is the difference between a string and an array?

1171

Is main a keyword in c?

1138

How can I remove the leading spaces from a string?

1171

Write a program to print factorial of given number using recursion?

1019

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.

2079

Explain how do you print only part of a string?

1222

What is struct node in c?

1075

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...

1938

What is union and structure?

1126

What is main () in c language?

1134

Write a program to generate the Fibinocci Series

1242

Q.1 write a program to create binary tree 1 to 16 numbers? Q.2 write a program to creat a binary search tree for the member that is given by user?

2545

Did c have any year 2000 problems?

1112

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