Answer / priyam

b=a*b/(a=b);

Answer / vinay kumar shukla

i am not giving answer
all above answer for swaping integer type variables without
third
i want answer in string type

Answer / saumya

Thanks a lot guys. It is giving very good analysis.

Answer / koneru gowtham

plz check 3 aswer is perfect, 2 one mat be wrong in some cases

Answer / kumar

Using Assembly language( Using Accumulator)...Without using
any arithmatic...without using any Pointer...without
declaring third varible

int a = 20;
int b = 10;
__asm
{
mov EAX,b
push EAX
mov EAX,a
mov b,EAX
pop EAX
mov a,EAX
}

Answer / meenama

The first two answers are correct. Third will FAIL in the
case the second num is 0. The #19 one still uses a third
variable.

Answer / mangesh

#include<stdio.h>
#include<conio.h>
int main()
{
int a,b;
clrscr();
printf("\nEnter two numbers:");
scanf("%d%d",&a,&b);
printf("\nThe numbers after swapping are %d %d",b,a);
getch();
return 0;
}

Answer / rehan

#include<stdio.h>
main()
{
int a,b;
printf("Enter any two numbers\n");
scanf("%d%d",&a,&b);
printf("The values before swapping are\n%d %d\n",a,b);
swap(&a,&b);
printf("The values after swapping are\n%d %d\n",a,b);
getch();
}

swap(*x,*y)
{
int t;
t=*x;
*x=*y;
*y=t;
}

Answer / divakar

a=a*b/(b=a);

Answer / javaskills

x = y | (y=x);

main() { int i=-1; +i; printf("i = %d, +i = %d \n",i,+i); }

1 Answers  

void main() { char far *farther,*farthest; printf("%d..%d",sizeof(farther),sizeof(farthest)); }

2 Answers  

int aaa() {printf(“Hi”);} int bbb(){printf(“hello”);} iny ccc(){printf(“bye”);} main() { int ( * ptr[3]) (); ptr[0] = aaa; ptr[1] = bbb; ptr[2] =ccc; ptr[2](); }

1 Answers  

write a program in c language to get the value of arroy keys pressed and display the message which arrow key is pressed?

1 Answers  

union u { struct st { int i : 4; int j : 4; int k : 4; int l; }st; int i; }u; main() { u.i = 100; printf("%d, %d, %d",u.i, u.st.i, u.st.l); } a. 4, 4, 0 b. 0, 0, 0 c. 100, 4, 0 d. 40, 4, 0

1 Answers   HCL,

1 o 1 1 0 1 0 1 0 1 1 0 1 0 1 how to design this function format in c-language ?

2 Answers  

main() { unsigned char i=0; for(;i>=0;i++) ; printf("%d\n",i); }

1 Answers  

#include"math.h" void main() { printf("Hi everybody"); } if <stdio.h> will be included then this program will must compile, but as we know that when we include a header file in "" then any system defined function find its defination from all the directrives. So is this code of segment will compile? If no then why?

2 Answers  

Is there any difference between the two declarations, 1. int foo(int *arr[]) and 2. int foo(int *arr[2])

1 Answers  

main() { int i=4,j=7; j = j || i++ && printf("YOU CAN"); printf("%d %d", i, j); }

1 Answers  

Which one is taking more time and why ? :/home/amaresh/Testing# cat time.c //#include <stdio.h> #define EOF -1 int main() { register int c; while ((c = getchar()) != EOF) { putchar(c); } return 0; } ------------------- WIth stdio.h:- :/home/amaresh/Testing# time ./time_header hi hi hru? hru? real 0 m4.202s user 0 m0.000s sys 0 m0.004s ------------------ Witout stdio.h and with #define EOF -1 =================== /home/amaresh/Testing# time ./time_EOF hi hi hru? hru? real 0 m4.805s user 0 m0.004s sys 0 m0.004s -- From above two case , why 2nd case is taking more time ?

0 Answers  

main() { char *p = "hello world"; p[0] = 'H'; printf("%s", p); } a. Runtime error. b. “Hello world” c. Compile error d. “hello world”

5 Answers   HCL,