* 'Domino':problema/domino
* 'Johnie':problema/johnie

* "Winning Checkers":http://ace.delos.com/ioiupload?d=gold&a=mQlEnO2VpIw&lang=en

* "Bridges Painting":http://acm.sgu.ru/problem.php?contest=0&problem=121
* "Strange Graph":http://acm.sgu.ru/problem.php?contest=0&problem=156

* "Winning Checkers":http://ace.delos.com/ioiupload?d=gold&a=mQlEnO2VpIw&lang=en

* "Ancient Decoration":http://acm.sgu.ru/problem.php?contest=0&problem=286
* "Flood":http://www.hsin.hr/ioi2007/tasks/day1/flood.pdf, _IOI 2007_

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