Technical - C & C++ Paper - 2

RAMCO SYSTEMS




1. How many butes does an array A(1:8,-2:2,1:5) require for storage if each element of the array is 24 bits long.
200 480 600 800 none

2. begin
i:=0;
j:=0; | block d
loop:
if(i != 0)
i := i-1;
else
i := i+1;

i := i+1; | block a
j := j+1; | block b
if (j <= 25) goto loop; end | block c a) What is the value of i at [c] 2 ? b) How many times is the goto executed 25 ? c) How many times is the loop executed if i is initialized to 1 in [d] 26 d) How many times is the loop entered if the block [b] is changed to j=j+1 ? e) What is the value of i at [c] interchanging blocks [a] and [b] ? 2 ? Follow the instructions given below [ From 1 to 8 ] 1. A cause B or C but not both 2. F occurs only if B occurs 3. D occurs if B or C occurs 4. E occurs if only c occurs 5. J occurs only if E or F occurs 6. H occurs if E occurs 7. D causes G, H or Both. 8. G occurs if F occurs. Questions --------- 1. If A occurs which of the following may occur 1. F & G (ii) E & H (iii) D Ans (a) 1 only (b) 2 only (c) 3 only (d) 1,2,3 or 2 & 3 but not 1 (e) 1,2 & 3 2. If B occurs which must occur Ans (a) F & G (b) D & G (c) D (d) G & H (e) J 3. If J occurs which must occur Ans (a) E (b) Both E & F (c) Either B or C (d) B (e) Both B & c 4. Which may occur as a result by a cause not mentioned. (I) D (II) A (III) F Ans (a) I only (b) II (c) I & II (d) II & III (e) I,II,III 5. If E occurs which cannot occur. (a) F (b) A (c) D (d) C (e) J 1) A - G are 7 consecutive +ve integers not necessarily in the same order 1) B is the middle number 2) D is 3 less than c 3) the difference between F & A is equal in magnitude and sign to the difference between E & C 4) Neither F nor C lie between E & G a) What is the value of B-F 1 2 -1 -2 cannot be determined b) which is greatest F C A E cannot be determined c) Given both A & B are primes what is the lowest value of E 8 6 9 12 cannot 2) Given that a,b,c,d,e each represent one of the digits between 1-9 and that the following multiplication holds a b c d e 4 ---------- e d c b a 1) Find the output for the following C program main() { char *p1="Name"; char *p2; p2=(char *)malloc(20); while(*p2++=*p1++); printf("%s\n",p2); } Ans. An empty string 2) Find the output for the following C program main() { int x=20,y=35; x = y++ + x++; y = ++y + ++x; printf("%d %d\n",x,y); } Ans. 57 94 3) Find the output for the following C program main() { int x=5; printf("%d %d %d\n",x,x<<2,x>>2);
}
Ans. 5 20 1

4) Find the output for the following C program
#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\n",x,y);
swap2(x,y);
printf("%d %d\n",x,y);
}
int swap2(int a,int b)
{
int temp;
temp=a;
b=a;
a=temp;
return;
}
Ans. 10 5
5) Find the output for the following C program
main()
{
char *ptr = "Ramco Systems";
(*ptr)++;
printf("%s\n",ptr);
ptr++;
printf("%s\n",ptr);
}

Ans. Samco Systems
6) Find the output for the following C program

#include
main()
{
char s1[]="Ramco";
char s2[]="Systems";
s1=s2;
printf("%s",s1);
}
Ans. Compilation error giving it cannot be an modifiable ,lvalue,
7) Find the output for the following C program
#include
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) Find the output for the following C program given that
[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) Find the output for the following C program
# define TRUE 0
some code
while(TRUE)
{
some code
}
Ans. This won,t go into the loop as TRUE is defined as 0
10) Find the output for the following C program
main()
{
int x=10;
x++;
change_value(x);
x++;
Modify_value();
printf("First output: %d\n",x);
}
x++;
change_value(x);
printf("Second Output : %d\n",x);
Modify_value(x);
printf("Third Output : %d\n",x);
}
Modify_value()
{
return (x+=10);
}
change_value()
{
return(x+=1);
}
Ans. 12 1 1