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Teorie:
Gaussian elimination
Row echelon form
Probleme:
To xor or not to xor sgu
XOR campion
Puzzle sgu
Rational Resistors uva
Extrapolation Using a Difference Table uva
Simple calculations uva
BColor infoarena
Laser infoarena
XORing topcoder
Escape the jail topcoder
Register CEOI 2003
Tunelul groazei infoarena