Interested to Buy Any Domain ? << Click Here >> for more details...
can u write a program in C, which does not use = (eqaul)or
any arithmatic assignment(like -=,+=,*= etc) operator to
swap to number?
- 2 Answers
- 4876 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / musa
swapping x and y using z as intermediary
memcpy(&z, &x, sizeof(x));
memcpy(&x, &y, sizeof(x));
memcpy(&y, &z, sizeof(x));
| Is This Answer Correct ? | 2 Yes | 1 No |
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....
| Is This Answer Correct ? | 3 Yes | 8 No |
do you think its fraud or original company?
write a C program : To find out the number of identical words in two files . the file name should be taken as command line argument .
What is a good way to implement complex numbers in c?
Tell about strtok & strstr functions
2 Answers HCL, iFlex, Motorola,
how to find the given number is prime or not?
How do you list a file’s date and time?
how to devloped c lenguege?
Write a program that receives as input a number omaadel-n-print, four digits.
How can I write a function analogous to scanf?
i have to apply for the rbi for the post of officers. i need to know abt the entrance questions whether it may be aps or techinical....
Whats s or c mean?
What are the 3 types of structures?
C 
