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题目： Given a string S and a string T, count the number of distinct subsequences of T in S. A subsequence of a string is a new string which is formed fr 阅读全文
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题目： Given two strings, find the longest common subsequence (LCS). Your code should return the length of LCS. Given two strings, find the longest commo 阅读全文
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题目： Given two words word1 and word2, find the minimum number of steps required to convert word1 to word2. (each operation is counted as 1 step.) You h 阅读全文
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题目： Given a sequence of integers, find the longest increasing subsequence (LIS). You code should return the length of the LIS. Given a sequence of int 阅读全文
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函数签名的概念 函数签名主要包括1、函数名；2、参数列表（参数的个数、数据类型和顺序）；但是注意，C++官方定义中函数签名不包括返回值！！ 1、重载 函数重载是指在同一作用域内，可以有一组具有相同函数名，不同参数列表的函数，这组函数被称为重载函数，与函数返回类型无关。重载要求参数列表必须不同，比如参 阅读全文