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 4772

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

2698

What is C++

4 5565

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

2189

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,

3191

How to add two numbers without using semicolon at runtime

2 7645

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

2 6699

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

1 3690

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

5 11985

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

5 7692

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 12891

why array index always starts from zero??

TCS,

4 7491

all c language question

Wipro,

2444

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Un-Answered Questions { C }

What are the different types of objects used in c?

1034

What is return type in c?

1141

What do you mean by keywords in c?

1154

Explain what does the function toupper() do?

1079

Write a C program in Fibonacci series.

1093

What is adt in c programming?

1169

What is dynamic variable in c?

1035

how many key words availabel in c a) 28 b) 31 c) 32

1083

Why do we use & in c?

1006

Explain how can type-insensitive macros be created?

999

What is an auto variable in c?

1240

Can you mix old-style and new-style function syntax?

1103

Not all reserved words are written in lowercase. TRUE or FALSE?

1236

What is spark map function?

1145

What is a loop?

1064

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