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 to print numbers from 1 to 100 without using loop in c?

1040

---

Do you have any idea about the use of "auto" keyword?

1059

---

What is a sequential access file?

1119

---

Is it better to use malloc() or calloc()?

1080

---

Is c is a procedural language?

1045

---

What are the 5 organizational structures?

985

---

Function calling procedures? and their differences? Why should one go for Call by Reference?

1058

---

What is c language in simple words?

1026

---

What is a keyword?

1131

---

What does volatile do?

947

---

Is there a built-in function in C that can be used for sorting data?

1197

---

What is the difference between far and near ?

1164

---

A character flag or control mechanism that delineates one data item from another a) variable b) constant c) delimiter d) call by reference

1060

---

Linked list is a Linear or non linear explain if linear how it working as a non linear data structures

2133

---

What are header files and what are its uses in C programming?

1156

---