正解很困难，但是注意到这是一个最优化问题，所以先考虑一个显然的贪心：按顺序插入每个物品然后分别计算其插入到两个集合内的代价，若插入到 A 集合里更优那么就插入到 A，否则就插入到 B。
这一看就很没有道理，但是这个时候直接随机一个顺序贪心然后多随机几次就能过了，应该是卡不了的。
P6898 [ICPC 2014 WF] Metal Processing Plant 题解
发布于 2025-11-08 22:47 125 字 1 min read
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题解CF1967C Fenwick Tree 题解CF607C Marbles 题解CF1411E Poman Numbers 题解CF1623D Robot Cleaner Revisit 题解CF178F3 Representative Sampling 题解CF1605D Treelabeling 题解CF2056D Unique Median 题解CF1983F array-value 题解CF1238E Keyboard Purchase 题解CF1553F Pairwise Modulo 题解CF484B Maximum Value 题解CF1470D Strange Housing 题解CF1498E Two Houses 题解CF1923E Count Paths 题解CF2049E Broken Queries 题解CF147B Smile House 题解CF1712E1 LCM Sum (easy version) 题解CF1646E Power Board 题解AT_tdpc_tree 木 题解AT_tdpc_lexicographical 辞書順 题解CF2036G Library of Magic 题解CF1834D Survey in Class 题解CF1884D Counting Rhyme 题解CF1886D Monocarp and the Set 题解CF1617D1 Too Many Impostors (easy version) 题解CF1780D Bit Guessing Game 题解CF1804D Accommodation 题解CF1796D Maximum Subarray 题解CF2030B Minimise Oneness 题解CF2030D QED's Favorite Permutation 题解CF1731E Graph Cost 题解CF1442C Graph Transpositions 题解CF1165F1 Microtransactions (easy version) 题解CF1165F2 Microtransactions (hard version) 题解CF1481D AB Graph 题解AT_joi2018ho_e 毒蛇の脱走 (Snake Escaping) 题解P7670 [JOI 2018 Final] 毒蛇越狱 / Snake Escaping 题解P7669 [JOI 2018 Final] 月票购买 / Commuter Pass 题解AT_joi2018ho_d 定期券 (Commuter Pass) 题解CF1358E Are You Fired? 题解CF1453E Dog Snacks 题解P11078 「FSLOI Round I」迷雾 题解P2998 [USACO10NOV] Candy S 题解P10895 选择困难症 题解CF1619E MEX and Increments 题解CF888D Almost Identity Permutations 题解CF863E Turn Off The TV 题解
正解很困难，但是注意到这是一个最优化问题，所以先考虑一个显然的贪心：按顺序插入每个物品然后分别计算其插入到两个集合内的代价，若插入到 A 集合里更优那么就插入到 A，否则就插入到 B。 这一看就很没有道理，但是这个时候直接随机一个顺序贪心然后多随机几次就能过了，应该是卡不了的。
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