[1]POJ 动态规划题目列表容易：1018, 1050, 1083, 1088, 1125, 1143, 1157, 1163, 1178, 1179, 1189, 1208, 1276, 1322, 1414, 1456, 1458, 1609, 1644, 1664, 1690, 1699, 1740(博弈), 1742, 1887, 1926(马尔科夫矩阵，求平衡）, 1936,1952, 1953, 1958, 1959, 1962, 1975, 1989, 2018, 2029,2039, 2063, 2081, 2082,2181, 2184, 2192, 2231, 2279, 2329, 2336, 2346, 2353,2355, 2356, 2385, 2392, 2424,不易：1019,1037, 1080, 1112, 1141, 1170, 1192, 1239, 1655, 1695, 1707,1733(区间减法加并查集), 1737, 1837, 1850, 1920(加强版汉罗塔), 1934(全部最长公共子序列), 1937(计算几何), 1964(最大矩形面积，O(n)算法), 2138, 2151, 2161(烦，没写), 2178,推荐：1015, 1635, 1636(挺好的), 1671, 1682, 1692(优化), 1704, 1717, 1722, 1726, 1732, 1770, 1821, 1853, 1949, 2019, 2127, 2176, 2228, 2287, 2342, 2374, 2378, 2384, 2411状态DP树DP构造最优解四边形不等式单调队列1015 Jury Compromise1029 False coin1036 Gangsters1037 A decorative fence1038 Bugs Integrated, Inc.1042 Gone Fishing1050 To the Max1062 昂贵的聘礼1074 Parallel Expectations1080 Human Gene Functions1088 滑雪1093 Formatting Text1112 Team Them Up!1141 Brackets Sequence1143 Number Game1157 LITTLE SHOP OF FLOWERS1159 Palindrome1160 Post Office1163 The Triangle1170 Shopping Offers1178 Camelot1179 Polygon1180 Batch Scheduling1185 炮兵阵地1187 陨石的秘密1189 钉子和小球1191 棋盘分割1192 最优连通子集1208 The Blocks Problem1239 Increasing Sequences1240 Pre-Post-erous!1276 Cash Machine1293 Duty Free Shop1322 Chocolate1323 Game Prediction1338 Ugly Numbers1390 Blocks1414 Life Line1432 Decoding Morse Sequences 1456 Supermarket1458 Common Subsequence1475 Pushing Boxes1485 Fast Food1505 Copying Books1513 Scheduling Lectures1579 Function Run Fun1609 Tiling Up Blocks1631 Bridging signals 2分+DP NLOGN 1633 Gladiators1635 Subway tree systems1636 Prison rearrangement1644 To Bet or Not To Bet1649 Market Place1651 Multiplication Puzzle1655 Balancing Act1661 Help Jimmy1664 放苹果1671 Rhyme Schemes1682 Clans on the Three Gorges 1690 (Your)((Term)((Project)))1691 Painting A Board1692 Crossed Matchings 1695 Magazine Delivery 1699 Best Sequence1704 Georgia and Bob1707 Sum of powers1712 Flying Stars1714 The Cave1717 Dominoes1718 River Crossing1722 SUBTRACT1726 Tango Tango Insurrection 1732 Phone numbers1733 Parity game1737 Connected Graph1740 A New Stone Game 1742 Coins P1745 Divisibility1770 Special Experiment 1771 Elevator Stopping Plan 1776 Task Sequences1821 Fence1837 Balance1848 Tree1850 Code1853 Cat1874 Trade on Verweggistan 1887 Testing the CATCHER 1889 Package Pricing1920 Towers of Hanoi1926 Pollution1934 Trip1936 All in All1937 Balanced Food1946 Cow Cycling1947 Rebuilding Roads1949 Chores1952 BUY LOW, BUY LOWER 1953 World Cup Noise1958 Strange Towers of Hanoi 1959 Darts1962 Corporative Network 1964 City Game1975 Median Weight Bead 1989 The Cow Lineup2018 Best Cow Fences2019 Cornfields2029 Get Many Persimmon Trees2033 Alphacode2039 To and Fro2047 Concert Hall Scheduling2063 Investment2081 Recaman's Sequence2082 Terrible Sets2084 Game of Connections2127 Greatest Common Increasing Subsequence 2138 Travel Games2151 Check the difficulty of problems2152 Fire2161 Chandelier2176 Folding2178 Heroes Of Might And Magic2181 Jumping Cows2184 Cow Exhibition2192 Zipper2193 Lenny's Lucky Lotto Lists2228 Naptime2231 Moo Volume2279 Mr. Young's Picture Permutations2287 TianJi -- The Horse Racing2288 Islands and Bridges2292 Optimal Keypad2329 Nearest number - 22336 Ferry Loading II2342 Anniversary party2346 Lucky tickets2353 Ministry2355 Railway tickets2356 Find a multiple2374 Fence Obstacle Course2378 Tree Cutting2384 Harder Sokoban Problem2385 Apple Catching2386 Lake Counting2392 Space Elevator2397 Spiderman2411 Mondriaan's Dream2414 Phylogenetic Trees Inherited2424 Flo's Restaurant2430 Lazy Cows2915 Zuma3017 Cut the Sequence3028 Shoot-out3124 The Bookcase3133 Manhattan Wiring3345 Bribing FIPA3375 Network Connection3420 Quad Tiling ?/?cat=5[2]动态规划方法总结1. 按状态类型分写在前面：从状态类型分，并不表示一题只从属于一类。
其实一类只是一种状态的表示方法。
可以好几种方法组合成一个状态，来解决问题。
1.1. 编号（长度）动态规划共性总结：本类的状态是基础的基础，大部分的动态规划都要用到它，成为一个维。
一般来说，有两种编号的状态：1、状态(i)表示前i个元素决策组成的一个状态。
2、状态(i)表示用到了第i个元素，和其他在1到i-1间的元素，决策组成有的一个状态。
题库：a) 最长不下降子序列以一元组(i)作为状态，表示第i个作为序列的最后一个点的时候的最长序列。
于是很容易想到O(n2)得算法。
但本题可合理组织状态，引入一个单调的辅助数组，利用单调性二分查找，优化到O(nlogn)。
关于优化详见优化章。
一些问题可将数据有序化，转化成本题。
应用：拦截导弹(NOIP99 Advance 1) 就是原题。
Beautiful People (sgu199)，要将数据有序化：其中一个权作为第一关键字不下降排列，另一个权作为第二关键字不上升。
Segment (ural 107，将线段的左端点有序化就可以了。
b) LCS状态(i,j)，表示第1个字符串的第i位，与第2个字符串的第j位匹配，得到的最长的串。
若有多个串要LCS，则加维，即几个串就几个维。
我也将此题归入路径问题。
c) 花店橱窗布置(IOI99)见路径问题。
1.2. 区间动态规划共性总结：本类问题与下一章的划分问题的决策的分割点无序交集比较大（占本类问题的30%）。