Equations are given in the format A / B = k, where A and B are variables represented as strings, and k is a real number (floating point number). Given some queries, return the answers. If the answer does not exist, return -1.0. Example:Given a / b =
Equations are given in the format A / B = k, where A and B are variables represented as strings, and k is a real number (floating point number). Given some queries, return the answers. If the answer does not exist, return -1.0. Example:Given a / b =
Period Time Limit: 3000MS Memory Limit: 30000K Total Submissions: 14653 Accepted: 6965 Description For each prefix of a given string S with N characters (each character has an ASCII code between 97 and 126, inclusive), we want to know whether the
投资组和求最大利润 题目: 投资人出资一笔费用mount,投资给不同的公司(A,B,C....),求最大获取利润? 例如:投资400百万,给出两家公司A和B: 1.如果投资一百万给A公司,投资3百万给B工资,则获取14百万(5百万+9百万): 2.如果都投资给B公司,则获取15百万,所以应该投资给B公司: 故选择全部投给B公司. Invested Amount(Unit: KRW 100 million won) Company A Company B 条件: 1.给出投资额mount,以及公司