poj2245.Lotto裸搜索[crayon-683af35306c05113194454/]poj2601.Simplecalculations推公式麻烦。。直接二分[crayon-683af35306c0e573316518/]poj1635.Subwaytreesystems树的同构,哈希[crayon-683af35306c13750957187/]poj2419.Forests暴力即可[crayon-683af35306c19634011771/]poj1717.Dominoesdp水题[crayon-683af35306c1e601037482/]poj2949.WordRings建图+分数规划[crayon-683af35306c24481484115/] ...
DescriptionBessiehastwocrispredapplestodelivertotwoofherfriendsintheherd.Ofcourse,shetravelstheC(1<=C<=200,000)cowpathswhicharearrangedastheusualgraphwhichconnectsP(1<=P<=100,000)pasturesconvenientlynumberedfrom1..P:nocowpathleadsfromapasturetoitself,cowpathsarebidirectional,eachcowpathhasanassociateddistance,and,bestofall,itisalwayspossibletogetfromanypasturetoanyotherpasture....
近期评论