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How to swap values between two variables without using a
third variable?
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Answer / chitra
main()
{
int a,b;
a=a+b;
b=a-b;
a=a-b;
}
chitra write answer
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / kumar
//language using C#
int a=10;
int b=20;
a=a+b;
b=a-b;
a=a-b;
thanks
Kumar
http://www.sourcecodehub.com/php/how-to-swap-values-of-two-variables-without-using-a-third-variable-integer/
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / nisay mizrahi
double a,b;
System.out.println("put in 2 numbers");
a=in.nextDouble();
b=in.nextDouble();
if(a>b){
a=a-b;
b=b+a;
a=b-a;
}
else
if(b>a){
b=b-a;
a=a+b;
b=a-b;
}
System.out.println("a is "+a);
System.out.println("b is "+b);
}
}
| Is This Answer Correct ? | 2 Yes | 2 No |
Answer / neha
class SwapBitwise
{
public void SwapByBitwise(int x, int y)
{
x =x ^ y;
y = x ^ y;
x = x ^ y;
System.out.println("x : " + x + " " + "y :" + y);
}
}
public class SwapOperation
{
public static void main(String[] args) {
SwapBitwise obj = new SwapBitwise();
obj.SwapByBitwise(200, 300);
}
}
| Is This Answer Correct ? | 1 Yes | 1 No |
Need more information related to,
1. the values and type of variables before doing a swap, in
order to do the efficient memory management and code
robustness.
2.the reason to swap without using third variable.
3.code efficiency increased due to the two variable alone.
4.pre and post conditions for swap
5.the programming laguage to be used to do swap.
| Is This Answer Correct ? | 0 Yes | 0 No |
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