53. For the following C program
void main()
{
unsigned char c;
for(c=0;c!=256;c=c+2)
printf("%d",c);
getch();
}
(a) 127
(b) 128
(c) 256
(d) infinitely
Ans: (d)
54. For the following program
int i;
i=0;
repeat
i=i+1; <====== PASCAL PROGRAM
print i;
until(i<10)
end
No. of times the loop is executed?
55. For the following program
Convert (int A,var ,int B;int c)
{A=10;
B=4-;
C=120;
}
Convert (inta,b,c)
{ <====== PASCAL PROGRAM
a=1;
b=4;
c=12;
}
56. For the following program
Procedure A
Begin
--------
end <====== PASCAL PROGRAM
Procedure B No. Of errors in the program ?(1,2,3,none)
Begin
-----------
end
57. For the following program
int i;
i=2;
i++;
if(i==4)
{printf(i=4);
}
else
{printf(i=3);
}
Output of the program ?
a) 4
b) 3
c) unpredictable
d) none
Ans. (b)
58. What is FAT?.
a) File Allocation Table
b) File Access Table
c) FDD Allocation Table
d) None of the above
Ans. (a)
. What does the following program print?
#include
int sum,count;
void main(void)
{<> for(count=5;sum+=--count;)
printf("%d",sum);
}
a. The pgm goes to an infinite loop b. Prints 4791010974 c. Prints 4791001974
d. Prints 5802112085 e. Not sure
2. What is the output of the following program?
#include
void main(void)
{
int i;<> for(i=2;i<=7;i++)
printf("%5d",fno());
}
fno()
{
staticintf1=1,f2=1,f3;
return(f3=f1+f2,f1=f2,f2=f3);
}
a. produce syntax errors b. 2 3 5 8 13 21 will be displayed c. 2 2 2 2 2 2 will be displayed
d. none of the above e. Not sure
3. What is the output of the following program?
#include
void main (void)
{
int x = 0x1234;
int y = 0x5678;
x = x & 0x5678;
y = y | 0x1234;
x = x^y;
printf("%x\t",x);
x = x | 0x5678;
y = y & 0x1234;
y = y^x;
printf("%x\t",y);
}
a. bbb3 bbb7 b. bbb7 bbb3 c. 444c 4448
d. 4448 444c e. Not sure
4. What does the following program print?
#include
void main (void)
{
int x;
x = 0;
if (x=0)
printf ("Value of x is 0");
else
printf ("Value of x is not 0");
}
a. print value of x is 0 b. print value of x is not 0 c. does not print anything on the screen
d. there is a syntax error in the if statement e. Not sure
5. What is the output of the following program?
#include
#include
int foo(char *);
void main (void)
{
char arr[100] = {"Welcome to Mistral"};
foo (arr);
}
foo (char *x)
{
printf ("%d\t",strlen (x));
printf ("%d\t",sizeof(x));
return0;
}
a. 100 100 b. 18 100 c. 18 18 d. 18 2 e. Not sure
6. What is the output of the following program?
#include
display()
{
printf ("\n Hello World");
return 0;
}
void main (void)
{
int (* func_ptr) ();
func_ptr = display;
printf ("\n %u",func_ptr);
(* func_ptr) ();
}
a. it prints the address of the function display and prints Hello World on the screen
b. it prints Hello World two times on the screen
c. it prints only the address of the fuction display on the screen
d. there is an error in the program e. Not sure
7. What is the output of the following program?
#include
void main (void)
{
int i = 0;
char ch = 'A';
do
putchar (ch);
while(i++ < 5 || ++ch <= 'F');
}
a. ABCDEF will be displayed b. AAAAAABCDEF will displayed
c. character 'A' will be displayed infinitely d. none e. Not sure
8. What is the output of the following program?
#include
#define sum (a,b,c) a+b+c
#define avg (a,b,c) sum(a,b,c)/3
#define geq (a,b,c) avg(a,b,c) >= 60
#define lee (a,b,c) avg(a,b,c) <= 60
#define des (a,b,c,d) (d==1?geq(a,b,c):lee(a,b,c))
void main (void)
{
int num = 70;
char ch = '0';
float f = 2.0;
if des(num,ch,f,0) puts ("lee..");
else puts("geq...");
}
a. syntax error b. geq... will be displayed c. lee.. will be displayed
d. none e. Not sure
9. Which of the following statement is correct?
a. sizeof('*') is equal to sizeof(int) b. sizeof('*') is equal to sizeof(char)
c. sizeof('*') is equal to sizeof(double) d. none e. Not sure
10. What does the following program print?
#include
char *rev(int val);
void main(void)
{
extern char dec[];
printf ("%c", *rev);
}
char *rev (int val)
{
char dec[]="abcde";
return dec;
}
a. prints abcde b. prints the address of the array dec
c. prints garbage, address of the local variable should not returned d. print a e. Not sure
11. What does the following program print?
void main(void)
{
int i;
static int k;
if(k=='0')
printf("one");
else if(k== 48)
printf("two");
else
printf("three");
}
a. prints one b. prints two c. prints three
d. prints one three e. Not sure
12. What does the following program print?
#include
void main(void)
{
enum sub
{
chemistry, maths, physics
};
struct result
{
char name[30];
enum sub sc;
};
struct result my_res;
strcpy (my_res.name,"Patrick");
my_res.sc=physics;
printf("name: %s\n",my_res.name);
printf("pass in subject: %d\n",my_res.sc);
}
a. name: Patrick b. name: Patrick c. name: Patrick
pass in subject: 2 pass in subject:3 pass in subject:0
d. gives compilation errors e. Not sure
13. What does
printf("%s",_FILE_); and printf("%d",_LINE_); do?
a. the first printf prints the name of the file and the second printf prints the line no: of the second printf in the file
b. _FILE_ and _LINE_ are not valid parameters to printf function
c. linker errors will be generated d. compiler errors will be generated e. Not sure
14. What is the output of the following program?
#include
void swap (int x, int y, int t)
{
t = x;
x = y;
y = t;
printf ("x inside swap: %d\t y inside swap : %d\n",x,y);
}
void main(void)
{
int x;
int y;
int t;
x = 99;
y = 100;
swap (x,y,t);
printf ("x inside main:%d\t y inside main: %d",x,y);
}
a. x inside swap : 100 y inside swap : 99 x inside main : 100 y inside main : 99
b. x inside swap : 100 y inside swap : 99 x inside main : 99 y inside main : 100
c. x inside swap : 99 y inside swap : 100 x inside main : 99 y inside main : 100
d. x inside swap : 99 y inside swap : 100 x inside main : 100 y inside main : 99
e. Not sure
15. Consider the following statements:
i) " while loop " is top tested loop ii) " for loop " is bottom tested loop
iii) " do - while loop" is top tested loop iv) " while loop" and "do - while loop " are top tested loops.
Which among the above statements are false?
a. i only b. i & ii c. iii & i d. ii, iii & iv e. Not sure
16. Consider the following piece of code:
char *p = "MISTRAL";
printf ("%c\t", *(++p));
p -=1;
printf ("%c\t", *(p++));
Now, what does the two printf's display?
a. M M b. M I c. I M d. M S e. Not sure
17. What does the following program print?
#include
struct my_struct
{
int p:1;
int q:1;
int r:6;
int s:2;
};
struct my_struct bigstruct;
struct my_struct1
{
char m:1;
};
struct my_struct1 small struct;
void main (void)
{
printf ("%d %d\n",sizeof (bigstruct),sizeof (smallstruct));
}
a. 10 1 b. 2 2 c. 2 1 d. 1 1 e. Not sure
18. Consider the following piece of code:
FILE *fp;
fp = fopen("myfile.dat","r");
Now fp points to
a. the first character in the file.
b. a structure which contains a char pointer which points to the first character in the file.
c. the name of the file. d. none of the above. e. Not sure.
19. What does the following program print?
#include
#define SQR (x) (x*x)
void main(void)
{
int a,b=3;
a = SQR (b+2);
}
a. 25 b. 11 c. 17 d. 21 e. Not sure.
20. What does the declaration do?
int (*mist) (void *, void *);
a. declares mist as a function that takes two void * arguments and returns a pointer to an int.
b. declares mist as a pointer to a function that has two void * arguments and returns an int.
c. declares mist as a function that takes two void * arguments and returns an int.
d. there is a syntax error in the declaration. e. Not sure.
21. What does the following program print?
#include
void main (void)
{
int mat [5][5],i,j;
int *p;
p = & mat [0][0];
for (i=0;i<5;i++)
for (j=0;j<5;j++)
mat[i][j] = i+j;
printf ("%d\t", sizeof(mat)); <> i=4;j=5;
printf( "%d", *(p+i+j));
}
a. 25 9 b. 25 5 c. 50 9 d. 50 5 e. Not sure
22. What is the output of the following program?
#include
void main (void)
{
short x = 0x3333;
short y = 0x4321;
long z = x;
z = z << 16;
z = z | y;
printf("%1x\t",z);
z = y;
z = z >> 16;
z = z | x;
printf("%1x\t",z);
z = x;
y = x && y;
z = y;
printf("%1x\t",z);
}
a. 43213333 3333 1 b. 33334321 4321 4321 c. 33334321 3333 1
d. 43213333 4321 4321 e. Not sure
23. What is the output of the following program?
#include
void main (void)
{
char *p = "Bangalore";
#if 0
printf ("%s", p);
#endif
}
a. syntax error #if cannot be used inside main function b. prints Bangalore on the screen
c. does not print anything on the screen
d. program gives an error "undefined symbol if" e. Not sure
24. If x is declared as an integer, y is declared as float, consider the following expression:
y = *(float *)&x;
Which one of the following statments is true?
a. the program containing the expression produces compilation errors;
b. the program containing the expression produces runtime errors;
c. the program containing the expression compiles and runs without any errors;
d. none of the above e. Not sure
25. What is the return type of calloc function?
a. int * b. void * c. no return type: return type is void
d. int e. Not sure
1.Max value of SIGNED int
2. A long C program is given -- try to be familiar with few of the concepts listed below
int *num={10,1,5,22,90};
main()
{
int *p,*q;
int i;
p=num;
q=num+2;
i=*p++;
print the value of i, and q-p, and some other operations are there.
}
how the values will change?
3. One pointer diff is given like this:
int *(*p[10])(char *, char*)
Explain the variable assignment
4. char *a[4]={"jaya","mahe","chandra","buchi"};
What is the value of sizeof(a) /sizeof(char *)
5. For the following C program
void fn(int *a, int *b)
{int *t;
t=a;
a=b;
b=t;
}
main()
{int a=2;
int b=3;
fn(&a,&b);
printf("%d,%d", a,b);
}
What is the output?
a) Error at runtime
b) Compilation error
c) 2 3
d) 3 2
6. For the following C program
#define scanf "%s is a string"
main()
{printf(scanf,scanf);
}
What is the output.
Ans. %s is string is string
7. For the following C program
{char *p="abc";
char *q="abc123";
while(*p=*q)
print("%c %c",*p,*q);
}
a) aabbcc
b) aabbcc123
c) abcabc123
d) infinate loop
8. What is the value of the following:
printf("%u",-1)
a) -1
b) 1
c) 65336
9. For the following C program
#define void int
int i=300;
void main(void)
{int i=200;
{int i=100;
print the value of i;}
print the value of i;}
What is the output?
10. For the following C program
int x=2;
x=x<<2;
printf("%d ",x);
Ans. 8
11. For the following C program
int a[]={0,0X4,4,9}; /*some values are given*/
int i=2;
printf("%d %d",a[i],i[a]);
What is the value?
SATYM PLACEMENT QUESTION WITH SOLUTION on c
Which of following operator can't be overloaded.
==
b) ++
c) ?!
d) <=
2. For the following C program
#include
main()
{printf("Hello World");}
The program prints Hello World without changing main() ,the output should
be
intialisation
Hello World
Desruct
The changes should be
a) IOstream operator<<(iostream os, char*s)
os<<'intialisation'<<(Hello World)<
c)
d) none of the above
6. For the following C program:
swap(int x,y)
{ int temp;
temp=x;
x=y;
y=temp;}
main()
{intx=2;y=3;
swap(x,y);}
After calling swap, what are the values x & y?
18. For the following C program
struct base {int a,b;
base();
int virtual function1();}
struct derv1:base
{int b,c,d;
derv1()
int virtual function1();}
struct derv2 : base
{int a,e;
}
base::base()
{a=2;b=3;
}
derv1::derv1()
{b=5;
c=10;d=11;}
base::function1()
{return(100);
}
derv1::function1()
{
return(200);
}
main()
base ba;
derv1 d1,d2;
printf("%d %d",d1.a,d1.b)
Output of the program is:
a)a=2;b=3;
b) a=3; b=2;
c) a=5; b=10;
d) none
19. For the above program answer the following q's
main()
base da;
derv1 d1;
derv2 d2;
printf("%d %d %d",da.function1(),d1.function1(),d2.function1());
Output is:
100,200,200;
b) 200,100,200;
c) 200,200,100;
d) None of the above
20. For the following C program
struct {
int x;
int y;
}abc;
x cannot be accessed by the following
1)abc-->x;
2)abc[0]-->x;
3)abc.x;
4)(abc)-->x;
a )1, 2, 3
b) 2 & 3
c) 1 & 2
d) 1, 3, 4
SATYAM INTERVIEW QUESTION WITH SOLUTION on c
IBM PLACEMENT QUESTION WITH SOLUTION on c
Ibm
20. Output of the following program is
main()
{int i=0;
for(i=0;i<20;i++)
{switch(i)
case 0:i+=5;
case 1:i+=2;
case 5:i+=5;
default i+=4;
break;}
printf("%d,",i);
}
}
0,5,9,13,17
b) 5,9,13,17
c) 12,17,22
d) 16,21
e) Syntax error
Ans. (d)
21. What is the ouptut in the following program
main()
{char c=-64;
int i=-32
unsigned int u =-16;
if(c>i)
{printf("pass1,");
if(c
else
printf("Fail2");
}
else
printf("Fail1);
if(i
else
printf("Fail2")
}
Pass1,Pass2
b) Pass1,Fail2
c) Fail1,Pass2
d) Fail1,Fail2
e) None of these
Ans. (c)
24. What will the following program do?
void main()
{
int i;
char a[]="String";
char *p="New Sring";
char *Temp;
Temp=a;
a=malloc(strlen(p) + 1);
strcpy(a,p); //Line number:9//
p = malloc(strlen(Temp) + 1);
strcpy(p,Temp);
printf("(%s, %s)",a,p);
free(p);
free(a);
} //Line number 15//
Swap contents of p & a and print:(New string, string)
b) Generate compilation error in line number 8
c) Generate compilation error in line number 5
d) Generate compilation error in line number 7
e) Generate compilation error in line number 1
Ans. (b)
25. In the following code segment what will be the result of the function,
value of x , value of y
{unsigned int x=-1;
int y;
y = ~0;
if(x == y)
printf("same");
else
printf("not same");
}
same, MAXINT, -1
b) not same, MAXINT, -MAXINT
c) same , MAXUNIT, -1
d) same, MAXUNIT, MAXUNIT
e) not same, MAXINT, MAXUNIT
Ans. (a)
27. What will be the result of the following program ?
char *gxxx()
{static char xxx[1024];
return xxx;
}
main()
{char *g="string";
strcpy(gxxx(),g);
g = gxxx();
strcpy(g,"oldstring");
printf("The string is : %s",gxxx());
}
The string is : string
b) The string is :Oldstring
c) Run time error/Core dump
d) Syntax error during compilation
e) None of these
Ans. (b)
28. What will be result of the following program?
void myalloc(char *x, int n)
{x= (char *)malloc(n*sizeof(char));
memset(x,\0,n*sizeof(char));
}
main()
{char *g="String";
myalloc(g,20);
strcpy(g,"Oldstring");
printf("The string is %s",g);
}
The string is : String
b) Run time error/Core dump
c) The string is : Oldstring
d) Syntax error during compilation
e) None of these
32. What will be the result of the following program?
main()
{char p[]="String";
int x=0;
if(p=="String")
{printf("Pass 1");
if(p[sizeof(p)-2]=='g')
printf("Pass 2");
else
printf("Fail 2");
}
else
{
printf("Fail 1");
if(p[sizeof(p)-2]=='g')
printf("Pass 2");
else
printf("Fail 2");
}
}
Pass 1, Pass 2
b) Fail 1, Fail 2
c) Pass 1, Fail 2
d) Fail 1, Pass 2
e) syntax error during compilation
33. Which of the choices is true for the mentioned declaration ?
const char *p;
and
char * const p;
You can't change the character in both
b) First : You can't change the characterr & Second : You can;t change the pointer
c) You can't change the pointer in both
d) First : You can't change the pointer & Second : You can't chanage the character
e) None
15. Given the following c program
func(int *i, int*j)
{*i=*i * *i;
*j=*j* *j;
}
main()
{ int i = 5, j = 2;
func(&i,&j);
printf("%d %d", i, j);}
What is the output?
9. For the following C program
void insert(key,r)
typekey key,data array r;
{extern int n;
if(n>=max) /*error table if full */
else r[n++].k=key;
}
This on executing, enables a
Basic sequential search
b) Binary search
c) Interpolation search
d) None
10. Find the outpur of the following C program
void f(char *p)
{p=(char *) malloc(6);
strcpy(p,"hello");
}
void main( )
{char *P="bye";
f(p);
printf("%s',p);
}
6. What is the fallacy in the following program segment ?
int *f1()
{
int a=5;
return &a;
}
f()
int *b=f1()
int c=*b;
}
7. Give the C language equivalents of the following
a)Function returning an int pointer
b)Function pointer returning an int pointer
c)Function pointer returning an array of integers
d)Array of function pointer returning an array of integers
8. Find the fallacy in the following program segment?
int a;
short b;
b=a;
9. Define function ? Explain arguments in functions ?
10. How does C pass variables to a function ?
11. Explain the following program segment.
f(){
int *b;
*b=2;
}
9. Find the output for the following C program
int array[4][4] = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16};
for (i=2;i<0;i--)
for(j=2;j<=0;j--)
printf("%d", arr[i][j]);
10. Find the output for the following C program
#include
void main()
{int i,x,sum=0;
int arr[6]=[1,2,3,4,5,6]
for (i=0;i<4;i++)
sum+ = func(arr[i]);
printf("%d", sum);
}
func(int x)
{ int val,x;
val = 2;
return(x+ val++);
}
28. For the following C progralm
int d=0;
for(int i=0;i<31;i++)
for(int j=0;j<31;j++)
for(int k=0;k<31;k++)
if (((i+j+k) % 3)==0)
d=d+1;
Find value of d
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