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第十届蓝桥杯国赛C++B组我们称一个字符串 S 包含字符串 T 是指 T 是 S 的一个子序列，即可以从字符串 S 中抽出若干个字符，它们按原来的顺序组合成一个新的字符串与 T 完全一样。给定两个字符串 S 和 T，请问最少修改 S 中的多少个字符，能使 S 包含 T？输入格式输入两行，每行一个字符串。第一行的字符串为 S，第二行的字符串为 T。两个字符串均非空而且只包含大写英文字母。输出格式输出一个整数，表示答案。数据范围1≤|T|≤|S|≤1000输入样例：ABCDEABCDX

Common SubsequenceA subsequence of a given sequence is the given sequence with some elements (possible none) left out. Given a sequence X = <x1, x2, …, xm> another sequence Z = <z1, z2, …, zk> is a subsequence of X if there exists a strictly i

动态规划A palindrome is a symmetrical string, that is, a string read identically from left to right as well as from right to left. You are to write a program which, given a string, determines the minimal number of characters to be inserted into the string in

最大上升子序列（LIS）A numeric sequence of ai is ordered if a1 < a2 < … < aN. Let the subsequence of the given numeric sequence (a1, a2, …, aN) be any sequence (ai1, ai2, …, aiK), where 1 <= i1 < i2 < … < iK <= N. For example, sequence (1,