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

C Interview Questions

Questions Answers Views Company eMail

1)what is the error in the following stmt where str is a char array and the stmt is supposed to traverse through the whole character string str? for(i=0;str[i];i++) a)There is no error. b)There shud be no ; after the stmt. c)The cond shud be str[i]!='\0' d)The cond shud be str[i]!=NULL e)i shud be initialized to 1

4 5522

main() { enum{red,green,blue=6,white}; pf("%d%d%d%d", red,green,blue,white); return 0; } a)0 1 6 2 b)0 1 6 7 c)Compilation error d)None of the above

6 16069

4)What would be the output? main() { int num=425; pf("%d",pf("%d",num)); } a)Comp error b)4425 c)4253 d)3435 e)none

10 12745

6)What would be the output? main() { int u=1,v=3; pf("%d%d",u,v); funct1(&u,&v); pf("%d%d\n",u,v); } void funct1(int *pu, int *pv) { *pu=0; *pv=0; return; } a)1 3 1 3 b)1 3 1 1 c)1 3 0 0 d)1 1 1 1 e) 3 1 3 1

4 7770

what wud be the output? main() { char *str[]={ "MANISH" "KUMAR" "CHOUDHARY" }; printf("\nstring1=%s",str[0]); printf("\nstring2=%s",str[1]); printf("\nstring3=%s",str[2]); a)string1=Manish string2=Kumar string3=Choudhary b)string1=Manish string2=Manish string3=Manish c)string1=Manish Kumar Choudhary string2=(null) string3=(null) d)Compiler error

Infosys,

9 11507

what will be the output of this program main() { int i=1; while (i<=10); { i++; } }

11 13463

main() { char x; while(x=0;x<=255;x++) printf("\nAscii value %d Charater %c",x,x); }

2 11370

main() { charx; while (x=0;x<=255;x++) printf("\nAscii value %d Character %c,x,x); }

2 9145

main() { intj; while9j<=10) { printf("\n%d",j); j=j+1; } }

4 11903

how to find the sizof of any datatype using bit manipulations

3 6180

How do I declare an array of N pointers to functions returning pointers to functions returning pointers to characters?

CMC, Wipro,

2 8866

SIR PLS TELL ME THE CODE IN C LANGUAGE TO PRINT THE FOLLOWING SERIES 1 1 2 1 1 2 3 2 1 1 2 3 4 3 2 1 1 2 3 2 1 1 2 1 1

4 6380

what is the output of the program?? #include main ( ) { int a=010,sum=0,tracker: for(tracker=0;tracker<=a;tracker++) sum+=tracker; printf(“ %d\n”,sum); } what is the difference between a=10 and a=010??

Oracle,

3 11664

write a program for 4 4 3 3 3 3 2 2 2 2 2 2 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 2 2 2 2 2 2 3 3 3 3 4 4

1 3938

program to find out date after adding 31 days to a date in the month of febraury also consider the leap year

3093

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Un-Answered Questions { C }

What is output redirection?

1222

what are enumerations in C

1163

What is difference between array and structure in c?

1192

Explain setjmp()?

1071

given post order,in order construct the corresponding binary tree

2785

explain what are actual arguments?

1091

How can I implement a delay, or time a users response, with sub-second resolution?

1078

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

What are nested functions in c?

1021

Explain what is the use of a semicolon (;) at the end of every program statement?

1229

Do pointers store the address of value or the actual value of a variable?

1081

Differentiate between calloc and malloc.

1273

Is it possible to have a function as a parameter in another function?

1081

write a program fibonacci series and palindrome program in c

1046

What is the ANSI C Standard?

1269

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