1).
main()
{
char *p1="Name";
char *p2;
p2=(char *)malloc(20);
while(*p2++=*p1++);
printf("%s ",p2);
}
Ans : An empty String
2).
main()
{
int x=20,y=35;
x = y++ + x++;
y = ++y + ++x;
printf("%d %d ",x,y);
}
Ans 57 94
3).
main()
{
int x=5;
printf("%d %d %d ",x,x<<2,x>>2);
}
Ans 5 20 1
4).
#define swap1(a,b) a=a+b;b=a-b;a=a-b;
main()
{
int x=5,y=10;
swap1(x,y);
printf("%d %d ",x,y);
swap2(x,y);
printf("%d %d ",x,y);
}
int swap2(int a,int b)
{
int temp;
temp=a;
b=a;
a=temp;
return;
}
Ans 10 5
10 5
5).
main()
{
char *ptr = "Ramco Systems";
(*ptr)++;
printf("%s ",ptr);
ptr++;
printf("%s ",ptr);
}
Ans Samco Systems
amco Systems
6).
#include<stdio.h>
main()
{
char s1[]="Ramco";
char s2[]="Systems";
s1=s2;
printf("%s",s1);
}
Ans Compilation error giving it cannot be an modifible 'lvalue'
7).
#include<stdio.h>
main()
{
char *p1;
char *p2;
p1=(char *) malloc(25);
p2=(char *) malloc(25);
strcpy(p1,"Ramco");
strcpy(p2,"Systems");
strcat(p1,p2);
printf("%s",p1);
}
Ans : RamcoSystems
8).
[1]. The following variable is available in file1.c
static int average_float;
Ans all the functions in the file1.c can access the variable
9)What is the maximum value of the expression
5+8x-8x^2?
1) x is real
2) x is not positive
10).
[3]. Another Problem with
# define TRUE 0
some code
while(TRUE)
{
some code
}
This won't go into the loop as TRUE is defined as 0
Ans NONE OF THE ABOVE i.e D
11).Will the graph X-Y pass through the origin?
1) x proportional to the Y
2)increment in y per units rise of x is fixed.
1) a=x+10%ofx
2) b=a+10%ofa
13)Is 3*5 or is 4*6 greater ?
1)a*b =b*a
2)a*b is the remainder of ab%(a+b)
Ans:B
14).
A question with argc and argv .
Input will be
c:TEMP.EXE Ramco Systems India
Output will be
India: I n d i a
Systems: S y s t e m s
Ramco: R a m c o
Answer is choice d
15).
Structure swap
Ramco India
Ramco Systems Corporation
Ramco ... Limited .
After swapping the result will be
First two will be swapped.
Ramco Systems Corporation
Ramco India
Ramco ... Limited .
16).
int x;
main()
{
int x=0;
{
int x=10;
x++;
change_value(x);
x++;
Modify_value();
printf("First output: %d ",x);
}
x++;
change_value(x);
printf("Second Output : %d ",x);
Modify_value();
printf("Third Output : %d ",x);
}
Modify_value()
{
return (x+=10);
}
change_value()
{
return(x+=1);
}
Ans : 12 1 1
17).
main()
{
int x=10,y=15;
x=x++;
y=++y;
printf("%d %d ",x,y);
}
Ans : 11 16
18).
main()
{
int a=0;
if(a=0) printf("Ramco Systems ");
printf("Ramco Systems ");
}
Ans : Ony one time
"Ramco Systems"
will be printed.
