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is the the judge's output fixed ? The problem seems very easy. I checked all my solutions with Mathematica and they are exactly the same. I can not understand how it comes WA. I assumed that the input '0' is not legal. If it is this my mistake, what should be the output? Thx in advance for any reply.

Raj thanks for your help. It was straight at the point, and I got AC.
I assumed till now , that difference in blanks in general leads just to PEs problems, and nothing more. It seems that I found my counterexample...

Thanks for the help Raj. Still it seems that my code reacts normally. I would apreciate if someone could take a look at my code: #include <iostream> #include <fstream> using namespace std ; int main(){ size_t l , ln ; char instr[55]={' '} , graph[55][110] = {' '} , line[55]={' '}; int cases , nr=1 ,...

hi.

is any tricky case for this problem? It seems very simple , but I'm taking WA.
Please send some more in/out cases.

thx in advance

I am getting also WA in probllem 116 . I didn't understand if the lexicographic order should be acording to the values or acording to the string (10 is before 2<=x<=9 ? ) If someone can have a look to the following code : (I assume that the order is acording to the value) #include <iostream> #includ...