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What file input might be read from? What file output might be written to?

Answer: Do not use files. Read input data from standard input stream (stdin in C/C++ and input Pascal). Write output data to standard output stream (stdout in C/C++ and output in Pascal).
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What books are recommended for reading to solve all these problrms.

Answer: Here are three of them:
  • "Introduction to Algorithms", Thomas H. Cormen, Charles E. Leiserson and Ronald L. Rivest.
  • "Programming: theorems and problems", A. Schen.
  • "Features of national programming problems", V.Berov, A.Lapunov, V.Matukhin.
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What compilers does El Judge use?

Answer:
  • С/С++ -- 3.4.6
  • Free Pascal -- 1.0.10
  • Perl -- 5.8.5
  • Python -- 2.1.3
  • Java -- JDK 1.5.0
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How to solve the problem 001 using Pascal (how to catch EOF in Pascal)?

Answer:
var i,m:longint;

begin
  read(m);
  while not (eoln or eof) do
    begin
	read(i);
	if i>m then m:=i;
    end;
  writeln(m);
end.
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How to solve the problem 000 using С/Pascal/Perl/...?

Answer: If you encounter difficultes, please refer to ethalon solutions.
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How are the ratings calculated?

Answer:

They are nearly the sum of all "problems' complexities" of the "Accepted" problems.

Here you can find the detailed information.

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Compilation options:

Answer:
Gnu C++:
g++ -std=gnu99 -s -Wall -static -O2 -DEL_JUDGE -x 'c++' -lm 

Gnu C:
gcc -std=gnu99 -s -Wall -static -O2 -DEL_JUDGE -x 'c' \
    -I "/usr/local/include/glib-2.0" -I "/usr/local/lib/glib-2.0/include" -lglib  -lm 

Free Pascal:
ppc386 -dEl_JUDGE -XS -Sg -So
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What are time_factors?

Answer: Execution time is divided by time_factor before comarison with time_limit. Sumbits table and best solutions table show real execution time.
GNU C => 1
GNU C++ => 1
Free Pascal => 1
Perl => 6,
Python => 6,
Lua => 6,
Ruby => 10,
Kylix => 1
Java => 1.8,
Scheme => 9,
Haskell => 6

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