Infosys  Placement Paper   Aptitude - Puzzle   -

#### Infosys  Placement Paper   Aptitude - Puzzle   -

• Posted by  FreshersWorld
7 Jan, 2012

c ques:

1.a=5,b=3,c=a,b
d=(a,b)
printf(c,d)
ans:c=5,d=3

2.e(int n)
{
if(n>0)
{
(not clear)
printf("%d",n);
e(--n);
}
return
}
ans:0,1,2,0

3.which has no problem with pointers

int *f1()
{
int n;
return (n)
}

int *f2()
{
int *p;
*p=3;
return p;
}

int *f3()
{
int *p;
p=malloc();
return p;
}

ans:no error

5.  sizeof operator is executed during compile time..

6.*p+=1
*p++
are these two same?
not same.

7  .func(int i)
{
static int count;
count=count+i;
}
ans:1+2+3...(counts values does not go after funtion call

8. is('a'<'b') true

10 short int=16 bits

11.4 stmt. ans.int float i;

12.int num[3];
num[3]=2;

ans:first stmt deals with size
second deals with element

13  .j=4
for(int i=0;i<5;i++)
{
j++;
++j;
}
output of j.
ans:14

9.char s1[20]="hello world";
s1[5]="\0";
printf("%d",strlen(s1));
printf("%%.%...(not clear)",s1);
}

14.brace { used in c for what ans:convention

15.parameters in c passed by ans:value.

16.when an array is passed it is by ans:pointer.

17.scanf can read ans:any data type

18.which cant be passed to subroutine.ans:preprocessor directive.

19.to get string of words..ans:gets()

20.external variables can be accesed ans:in functions which use them.

analytical:

1.cat->satc
dear->seard

sing->sings

3.1999 july 21st friday
1947 july 21st ?
ans:two days before.

4.2,12,30,56,