poj2245.Lotto裸搜索[crayon-6288eaf77b62e468237650/]poj2601.Simplecalculations推公式麻烦。。直接二分[crayon-6288eaf77b637259392098/]poj1635.Subwaytreesystems树的同构,哈希[crayon-6288eaf77b63c172299245/]poj2419.Forests暴力即可[crayon-6288eaf77b641381131104/]poj1717.Dominoesdp水题[crayon-6288eaf77b647510015464/]poj2949.WordRings建图+分数规划[crayon-6288eaf77b64d616191372/] ...
DescriptionBessiehastwocrispredapplestodelivertotwoofherfriendsintheherd.Ofcourse,shetravelstheC(1<=C<=200,000)cowpathswhicharearrangedastheusualgraphwhichconnectsP(1<=P<=100,000)pasturesconvenientlynumberedfrom1..P:nocowpathleadsfromapasturetoitself,cowpathsarebidirectional,eachcowpathhasanassociateddistance,and,bestofall,itisalwayspossibletogetfromanypasturetoanyotherpasture....
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