C Interview Questions
Questions Answers Views Company eMail

What will be the output of the following program #include void main() { int i=20; i-=i+++++i++; printf("%d",i); }

5 2625

what is difference between getchar,putchar functions and printf and scanf function? does putchar show output only when input given to it

DIT,

5 19119

program for reversing a selected line word by word when multiple lines are given without using strrev

IBM,

1153




What is the meaning of int *x[]();?

1 1583

Write a program to replace n bits from the position p of the bit representation of an inputted character x with the one's complement. Method invertBit takes 3 parameters x as input character, p as position and n as the number of positions from p. Replace n bits from pth position in 8 bit character x. Then return the characters by inverting the bits.

Infosys,

2817

In cryptography, you could often break the algorithm if you know what was the original (plain) text that was encoded into the current ciphertext. This is called the plain text attack. In this simple problem, we illustrate the plain text attack on a simple substitution cipher encryption, where you know each letter has been substituted with a different letter from the alphabet but you don’t know what that letter is. You are given the cipherText as the input string to the function getwordSets(). You know that a plain text "AMMUNITION" occurs somewhere in this cipher text. Now, you have to find out which sets of characters corresponds to the encrypted form of the "AMMUNITION". You can assume that the encryption follows simple substitution only. [Hint: You could use the pattern in the "AMMUNITION" like MM occurring twice together to identify this]

Infosys,

1137

how to introdu5ce my self in serco

764

At a shop of marbles, packs of marbles are prepared. Packets are named A, B, C, D, E …….. All packets are kept in a VERTICAL SHELF in random order. Any numbers of packets with these names could be kept in that shelf as in this example: bottom of shelf ---> [AAAJKRDFDEWAAYFYYKK]-----Top of shelf. All these packets are to be loaded on cars. The cars are lined in order, so that the packet could be loaded on them. The cars are also named [A, B, C, D, E,………….]. Each Car will load the packet with the same alphabet. So, for example, car ‘A’ will load all the packets with name ‘A’. Each particular car will come at the loading point only once. The cars will come at the loading point in alphabetical order. So, car ‘B’ will come and take all the packets with name ‘B’ from the shelf, then car ‘C’ will come. No matter how deep in the shelf any packet ‘B’ is, all of the ‘B’ packets will be displaced before the ‘C’ car arrives. For that purpose, some additional shelves are provided. The packets which are after the packet B, are kept in those shelves. Any one of these shelves contains only packets, having the same name. For example, if any particular shelf is used and if a packet with name X is in it, then only the packets having names X will be kept in it. That shelf will look like [XXXXXXX]. If any shelf is used once, then it could be used again only if it is vacant. Packets from the initial shelf could be unloaded from top only. Write a program that finds the minimum total number of shelves, including the initial one required for this loading process.

Infosys,

914




c program to compute AREA under integral

Infosys,

932

At a shop of marbles, packs of marbles are prepared. Packets are named A, B, C, D, E …….. All packets are kept in a VERTICAL SHELF in random order. Any numbers of packets with these names could be kept in that shelf as in this example: bottom of shelf ---> [AAAJKRDFDEWAAYFYYKK]-----Top of shelf. All these packets are to be loaded on cars. The cars are lined in order, so that the packet could be loaded on them. The cars are also named [A, B, C, D, E,………….]. Each Car will load the packet with the same alphabet. So, for example, car ‘A’ will load all the packets with name ‘A’. Each particular car will come at the loading point only once. The cars will come at the loading point in alphabetical order. So, car ‘B’ will come and take all the packets with name ‘B’ from the shelf, then car ‘C’ will come. No matter how deep in the shelf any packet ‘B’ is, all of the ‘B’ packets will be displaced before the ‘C’ car arrives. For that purpose, some additional shelves are provided. The packets which are after the packet B, are kept in those shelves. Any one of these shelves contains only packets, having the same name. For example, if any particular shelf is used and if a packet with name X is in it, then only the packets having names X will be kept in it. That shelf will look like [XXXXXXX]. If any shelf is used once, then it could be used again only if it is vacant. Packets from the initial shelf could be unloaded from top only. Write a program that finds the minimum total number of shelves, including the initial one required for this loading process.

Infosys,

1017

to write a program, that finds the minimum total number of shelves, including the initial one, required for this loading process. The packets are named A, B, C, D, E …….. Any numbers of packets with these names could be kept in the shelf, as in this example: [ZZLLAAJKRDFDDUUGGYFYYKK]. All packets are to be loaded on cars. The cars are lined in order, so that the packets could be loaded on them. The cars are also named [A, B, C, D, E,………….].

TCS, Infosys,

2 4262

a<<1 is equivalent to a) multiplying by 2 b) dividing by 2 c) adding 2 d)none of the above

HCL, NBN,

2 6140

The operation of a stair case switch best explains the a) or operation b) and operation c)exclusive nor operation d)exclusive or operation Which of the following is/are syntactically correct? a) for(); b) for(;); c) for(,); d) for(;;);

Public Service Commission, HCL,

1 7073

b) 4 c) 6 d) 7 32. Any C program a) must contain at least one function b) need not contain ant function c) needs input data d) none of the above 33. Using goto inside for loop is equivalent to using a) continue b) break c) return d)none of the above 34. The program fragment int a=5, b=2; printf(“%d”,a+++++b); a) prints 7 b)prints 8 c) prints 9 d)none of the above 35. printf(“ab” , “cd”,”ef”); prints a) ab abcdef c) abcdef, followed by garbage value d) none of the above 36. Consider the following program segment. i=6720; j=4; while((i%j)==0) { i=i/j; j=j+1; } On termination j will have the value a) 4 b) 8 c) 9 d) 6720

HCL,

1 4625

#define f(g,h) g##h main O int i=0 int var=100 ; print f ("%d"f(var,10));} wat would be the output??

761


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Un-Answered Questions { C }

how to build a exercise findig min number of e heap with list imlemented?

740


void main(int n) { if(n==0) return; main(--n); printf("%d ",n); getch(); } how it work and what will be its output...............it any one know ans plz reply

700


cavium networks written test pattern ..

2122


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); } }

937


Hai what is the different types of versions and their differences

742






C language questions for civil engineering

327


Take an MxN matrice from user and then sum upper diagonal in a variable and lower diagonal in a separate variables. Print the result

553


i want to switch my career from quailty assurance engineering to development kindly guide me from which programming language its better for me to start plz refer some courses or certifications too i have an experience of 1.5 yrs in QA field.Kindly guide me

731


praagnovation

756


i have to apply for the rbi for the post of officers. i need to know abt the entrance questions whether it may be aps or techinical....

763


How do we make a global variable accessible across files? Explain the extern keyword?

653


write a program to print largest number of each row of a 2D array

1100


difference between Low, Middle, High Level languages in c ?

808


find the output? void r(int a[],int c, int n) { if(c>n) { a[c]=a[c]+c; r(a,++c,n); r(a,++c,n); } } int main() { int i,a[5]={0}; r(a,0,5); for(i=0;i<5;i++) printf("\n %d",a[i]); getch(); }

1003


PLS U SENS ME INTERVIEW O. MY EMAIL ADD, SOFIYA.SINGH@GMAIL.COM

911