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Hi, my question is:
Someone can tell some critical problems for the category of problems, for example "Geometry computational = SCUD Busters"
and something like that. Please don't suggest problems that are simple resolved by the standar algorithm, suggest problems that one can say: "resolve that ...

thanks for the data mf, 0.0000001% less ignorant

This question it's not of live or death, just knowledge
I have a question, i use the mingw in windows, and when i read a number with scanf("%lld %Ld %Lf ") the values of my variables are junk, but, when i send to the judge, the answer is AC. Someone knows why happen this, the are a solution to this ...

blame microsoft ..., atoll its not part of UNIX

my code works with that big input, but im still getting WA, can someone tell me why...

Accepeted...


I try and try this problem, for a long time, and my two errors are this:
-If the robor fall in a corner the signal have effect on 1 or 2 or 3 or 4 squares
- a newline at the end of output ...