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C Tutorial Interview Questions

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int main() { extern int i; printf("%d ", i); { int i = 10; printf("%d ", i); } } (a) 0 10 (b) Compiler Error (c) 0 0 (d) 10 10 Solution: Option ( b) Why we get compilation error??

How to write functions in c program without using headerfile.

How abstraction done in C?

How to do a simple program simulation of a Rotation game? A player chooses to move a box encompassing four numbers, and then chooses to either rotate the numbers clockwise or counterclockwise.

How can numbers be separated by comma in C?(1200 - 1,200) The number can be up to 9 digits.

I WANT DISPLAY 1111 1222 1233 1234 SEND ME ANS PLZZZZZZZ

What is the output of the following program: Int x = 3, y = 2; foo(x, y) { x = x + 2; y = y + 3; printf (?%d %d?, x,y); } main0 { int x,y; x = 5; y = 5; printf (?%d %d?, x,y); } a) 7 8 5 5 b) 5 5 5 5 c) 5 5 3 2 d) 7 8 7 8

Write character a to z in random seqence in one dimensional array then how to get 'ABC' and then directly get the 'PQR' ?

A lift can accept a maximum load of 1000 kg.write a program to check how many people enter lift & what is the total weight currently present in the lift? If it exceeds maximum limit,set a variable for overweight.if overweight variable is set ring alarm.

What are the standard predefined macros ?

What is the purpose of realloc( ) ?

How can you restore a redirected standard stream ?

What is Preprocessor ?

Can a file other than a .h file be included with #include ?

How do you print an address ?

What is the difference between a string copy (strcpy) and a memory copy (memcpy)? When should each be used?

When should a type cast be used ?

What is a null pointer assignment error? What are bus errors, memory faults, and core dumps?

How can do search for data in a linked list ?

When does the compiler not implicitly generate the address of the first element of an array ?

What is page thrashing ?

When should the register modifier be used? Does it really help ?

When should the volatile modifier be used ?

What is the result of using Option Explicit ?

Difference between const char* p and char const* p

Can you tell me how to check whether a linked list is circular ?

How to reduce a final size of executable ?

What is the output of printf("%d") ?

What is hashing ?

#include main() { int x,y=2,z,a; if(x=y%2) z=2; a=2; printf("%d %d ",z,x); }

main() { int i=5; printf("%d%d%d%d%d%d",i++,i--,++i,--i,i); }

#define int char main() { int i=65; printf("sizeof(i)=%d",sizeof(i)); }

void main() { int const * p=5; printf("%d",++(*p)); }

Can we have nested header files in C?

What is the difference between object and reference?

How to write a 'C' program to read an array of 10 numbers and print the prime nums? this is what i wrote could someone tell me where is my mistake? can i use here flag at all? #include void main () { int arr[10], i, j, flag; for (i=0;i<10;i++) scanf ("%d", &arr[i]); for (i=0;i<10;i++) { flag=1; for (j=2;j<=(arr[i]/2); j++) { if (arr[i]%j==0) { flag=0; break; } } } for (i=0;i<10;i++) { if (flag=1) printf ("%d", arr[i]); }

Which language is not high-level language?

What is data independence? what is transaction process application? Discuss the main charecteristics of data approach how it differs from traditional file system!

How to find size of an datatype without using sizeof operator?

How to find GCD of four numbers?

Write a program to accept any number up to six digit and print in words. for ex:1234=one two three four

What is type integration? And what is integer type integration?

What is :- Token , identifier , block , parameter , argument , scope of variable , Macro ?

What is the code to find our age,for example if my date of birth is 4/12/1986 and today date is 16/11/2008 answer should give our year,month,no of days

What is the difference between unix and linux.

How to convert decimal to octal and hexadecimal?

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