answer for the program

[karthikeyan ravi]

write a basic program in any language weather its C,C++ ,

when i given an input as 1 it should display 0,if the input is 0 the result should be 1,
the conditions are should not use conditions and arithmetic operators ...?

[T Dahl]

Why not allow conditions or arithmetic?

Would array look-up or substring extraction be allowed?

[Christophe Verré]

Hi karthikeyan ravi, welcome to the ranch ! This place is NotACodeMill, so you should DoYourOwnHomework.

Do you mean that it should be in either C or C++ ? If so, I'll move your question to the C/C++ forum.

[Rob Spoor]

Simple substraction can help here. If the input is 1 the output should be 0. If the input is 0 the output should be 1. That means that input + output == 1. I'm sure you can now find out what to assign to the output based on the input.

[T Dahl]

Rob Prime wrote:Simple substraction can help here. If the input is 1 the output should be 0. If the input is 0 the output should be 1. That means that input + output == 1. I'm sure you can now find out what to assign to the output based on the input.

Subtraction would count as arithmetic, wouldn't it?

[Jeanne Boyarsky]

What about boolean operators?

[Steve Fahlbusch]

Easiest way i see would be an array of two elements.

But of course we don't really have a good definition from the OP.

Are conditional opeators allowed?

Or boolean operations?

Or even bit masks?

Once again - hard to say when we do not get the full requirements...

[k. mahesh kumar]

//using logical NOT operator
#include<iostream.h>
int main()
{
int a;
cout<<"enter the value i.e 0 or 1"<<endl;
cin>>a;
cout<<"the opposite is"<<!a<<endl;

return 1;
}

[Tarun Bolla]

k. mahesh kumar wrote:
cout<<"the opposite is"<<!a<<endl;
}

I think casting is required here....

cout<<"the opposite is "<<(int) !a<<endl;

[Vijitha Kumara]

T Dahl wrote:

Rob Prime wrote:..

...

Really thought that Rob Spoor is a different one from Rob Prime until now...

[Gaurav Sagar]

One of the possible solutions:-

class Invert
{
	public static void main(String...arg)
	{
		int arr[] = {1,0};
		System.out.println(arr[(Integer.parseInt(arg[0]))]);
	}
}

Regards,
Gaurav

[Marco Fernandez Galvan]

I have read about you and your book, and I like to be selected by chance I have to do a project for a company, and your book would serve me much help, save me time looking for solutions in the network.

A question I ask you, if you have taken a long time and headaches, writing this book?

A greeting and good luck with the book, and all followers of this forum just to say that cane to keep giving these keyboards.

[Vijitha Kumara]

Hi Marco,

As already pointed out here you may have posted your question about the book in its own thread.

[Gaurav Sagar]

One more is using the bitwise exclusive OR operation:-

	public static void main(String...arg)
	{
		int a = Integer.parseInt(arg[0]);
		System.out.println(a^1);
	}

Regards,

Gaurav