poj2245.Lotto裸搜索[crayon-66a47228f3c29388708688/]poj2601.Simplecalculations推公式麻烦。。直接二分[crayon-66a47228f3c32780870042/]poj1635.Subwaytreesystems树的同构,哈希[crayon-66a47228f3c37647051456/]poj2419.Forests暴力即可[crayon-66a47228f3c3d167835941/]poj1717.Dominoesdp水题[crayon-66a47228f3c43452000323/]poj2949.WordRings建图+分数规划[crayon-66a47228f3c49374819684/] ...
DescriptionBessiehastwocrispredapplestodelivertotwoofherfriendsintheherd.Ofcourse,shetravelstheC(1<=C<=200,000)cowpathswhicharearrangedastheusualgraphwhichconnectsP(1<=P<=100,000)pasturesconvenientlynumberedfrom1..P:nocowpathleadsfromapasturetoitself,cowpathsarebidirectional,eachcowpathhasanassociateddistance,and,bestofall,itisalwayspossibletogetfromanypasturetoanyotherpasture....
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