ISOFT Placement Paper (Technical-C)
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
4.header file ->contains declarations.
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 function call)
8.is('a'<'b') true
9.short int=16 bits
10.int num[3];
num[3]=2;
Ans: first stmt deals with size, second deals with element
11.j=4
for(int i=0;i<5;i++)
{
j++;
++j;
}
output of j.
ans:14
12.char s1[20]="hello world";
s1[5]="";
printf("%d",strlen(s1));
printf("%%.%...(not clear)",s1);
}
ans: bad format specifier
13.brace { used in c for what ans:convention)
14.parameters in c passed by (Ans: value).
15.when an array is passed it is by ( Ans: pointer).
16.scanf can read (Ans: any data type)
17.which cant be passed to subroutine. (Ans: preprocessor directive).
18.to get string of words. (.Ans: gets())
19.external variables can be accessed. (Ans: in functions which use them.)
