Answer Posted / anish

Simple... use XOR (^) operator...
example suppose,
x=101 (binary)
y=010 (binary)
now,
Execute : x=x^y; -->> from LSB 1^0=1 0^1=1 1^0=1
now x=111
Execute : y=x^y; -->> from LSB 1^0=1 1^1=0 1^0=1
now y=101 (101 used to be the value of x)
Execute : x=x^y; -->> from LSB 1^1=0 1^0=1 1^1=0
now x=010 (010 used to be the values of y)

code snippet
{
x=10;
y=30;
//swap x and y
x=x^y;
y=x^y;
x=x^y;
}

now x=30 and y=10

any doubts please ask me....

Write a program with dynamically allocation of variable.

1068

---

What is a stream water?

1127

---

What is getch () for?

1149

---

#include main() { enum _tag{ left=10, right, front=100, back}; printf("left is %d, right is %d, front is %d, back is %d",left,right,front,back); }

1067

---

difference between native and cross compilers

2080

---

What is the meaning of 2d in c?

1064

---

What is the concatenation operator?

1090

---

hi any body pls give me company name interview conduct "c" language only

2231

---

Is file a keyword in c?

887

---

What are the header files used in c language?

995

---

Is return a keyword in c?

1030

---

a single linked list consists of nodes a to z .print the nodes in reverse order from z to a using recursion

2715

---

if the area was hit by a virus and so the decrease in the population because of death was x/3 and the migration from other places increased a population by 2x then annually it had so many ppl. find our the population in the starting.

5142

---

Is it better to use a pointer to navigate an array of values, or is it better to use a subscripted array name?

1034

---

what will be the output for the following main() { printf("hi" "hello"); }

10799

---