Thread: oppostie order 0 - 127

Originally Posted by Hodor

Please explain how the answer is incorrect; i.e. if you input is the variable 'n' then how is 127 - n not a correct answer?

Now let's look at your answer: (n - 127) * -1
We'll do some simple mathematical stuff to that and rearrange the equation
(n - 127) * -1
= -(n - 127)
= -n + 127
= 127 - n

:-o Wow, we can now do it with an unsigned type just like we did almost 24 hours ago and it's mathematically the same and it does it with just one subtraction and not need a multiply and doesn't needs 1s complement.

Perhaps you should re-read the earlier answers and see that they are not a joke at all.

(You owe some people an apology as well. Thanks)

Edit: As an exercise I'll leave it to you to explain how my alternative answer of 0x7f XOR n works

127 - n, right you are thanks.

Apology? Had you have answered the question to begin with, with a simple // 127 -n // there would have only been one reply. But instead you chose to play the role of a teacher, suggesting that here is some info, now work it out. Then you put up a hard to understand conditional for loop, and then a ridiculous set of 'if else' statements. That attempt at humour, which only led to my frustration, subsequently led someone else to put up a lookup table.

None of the answers were able to help me. I had to work it out myself.

and so I thanked people for there help.

"as an exercise I'll leave it to you ....."

Take a look at yourself. Not everyone is like you. Time is of the essence for me, I have no times for games or frankly, anymore of this ......

thanks for your answer.

Originally Posted by brownt

127 - n, right you are thanks.

Apology? Had you have answered the question to begin with, with a simple // 127 -n // there would have only been one reply. But instead you chose to play the role of a teacher, suggesting that here is some info, now work it out. Then you put up a hard to understand conditional for loop, and then a ridiculous set of 'if else' statements. That attempt at humour, which only led to my frustration, subsequently led someone else to put up a lookup table.

None of the answers were able to help me. I had to work it out myself.

and so I thanked people for there help.

"as an exercise I'll leave it to you ....."

Take a look at yourself. Not everyone is like you. Time is of the essence for me, I have no times for games or frankly, anymore of this ......

thanks for your answer.

The loop was there to simply demonstrate what the program output for each value of 0 to 127 *shrug* If you'd spent 6 seconds reading the program maybe you would have seen that and also that you had the answer a day ago

Originally Posted by brownt

"as an exercise I'll leave it to you ....."

Take a look at yourself. Not everyone is like you. Time is of the essence for me, I have no times for games or frankly, anymore of this ......

thanks for your answer.

I don't have to take a look at it. I wrote it so I think I understand it.

Anyway, it's obvious you don't want to learn programming so don't expect any more answers or even nudges in the right direction.

correct, I don't want to learn programming at this time. I know what I know and any further learning will have to wait, until I have time. I had a deadline, and what I needed was answers, not some riddle or joking about.

I didn't ask you to look at it, i asked you to have a look at yourself. because we are not all like you and so you cannot expect everyone to be on the same path, or even to me able to interpret someone else's attempt at humour.

Originally Posted by brownt

correct, I don't want to learn programming at this time. I know what I know and any further learning will have to wait, until I have time. I had a deadline, and what I needed was answers, not some riddle or joking about.

I didn't ask you to look at it, i asked you to have a look at yourself. because we are not all like you and so you cannot expect everyone to be on the same path, or even to me able to interpret someone else's attempt at humour.

There was no joke. It's not my fault if you cannot understand

Code:

for (i = 0; i < 128; i++) {}

and/or think it's a cryptic loop. Perhaps if you think that's a complicated loop or a joke you should be failing whatever it is you're doing.