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post #241 of 244
11/12/12 at 8:06am
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Just found out the challanges are up again, it will be nice to put myself in trouble hehe!
I'll go with PHP preferably since I almost forgot what I learned in C++ thumbsdownsmileyanim.gif
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post #242 of 244
11/13/12 at 1:45am
Quote:
Originally Posted by Icekilla View Post

R = (A+B) + (A-B) + (B+A) + (B-A)
It's harder than you think].

No it's not.

In Python
Code:
def easy(A, B):
    return (A+B) + (A-B) + (B+A) + (B-A)

Easy.
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post #243 of 244
11/13/12 at 12:20pm
Quote:
Originally Posted by Chris++ View Post

No it's not.
In Python
Code:
def easy(A, B):
    return (A+B) + (A-B) + (B+A) + (B-A)
Easy.

Also trying to understand what could possibly be difficult about that challenge and what the relevance is of the input rules. Perhaps it's meant to restrict input, although if that's the case then resulting behavior should be defined.

But you forgot to include the "hard" part for getting input, parsing it, and printing. tongue.gif

Perl
Code:
my $input = <>;
$input =~ /^(\d+)\s(\d+)$/;
print (($1+$2) + ($1-$2) + ($2+$1) + ($2-$1));
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post #244 of 244
11/13/12 at 12:37pm
Quote:
Originally Posted by Icekilla View Post

I have a challenge for you

Given two numbers A and B, 1 <= A, B <= 10^9, you must find the following calculation:
R = (A+B) + (A-B) + (B+A) + (B-A)

Data input
The only line of the input is two space separated numbers, A and B.

Data output
The only line of the output is the result of the calculation, R.

Input samples
10 5

Output samples
30

It's harder than you think, took it from COJ.

I don't possibly see what is hard about that, especially if you simplify first to: 2*(A+B)
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