关于动态规划的一些理解

https://www.zhihu.com/question/39948290

官方解释

https://leetcode-cn.com/problems/coin-change-2/solution/ling-qian-dui-huan-ii-by-leetcode-soluti-f7uh/

使用二维数组解决问题：多少种找零钱方法

https://blog.csdn.net/zouyutu5296/article/details/88657963?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522162729352516780357243103%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fall.%2522%257D&request_id=162729352516780357243103&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~all~first_rank_v2~rank_v29-2-88657963.pc_search_result_cache&utm_term=%E5%8A%A8%E6%80%81%E8%A7%84%E5%88%92+%E9%9B%B6%E9%92%B1+python&spm=1018.2226.3001.4187

找零问题有多少种找零钱方法。

https://blog.csdn.net/zouyutu5296/article/details/88657963?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522162729352516780357243103%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fall.%2522%257D&request_id=162729352516780357243103&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~all~first_rank_v2~rank_v29-2-88657963.pc_search_result_cache&utm_term=%E5%8A%A8%E6%80%81%E8%A7%84%E5%88%92+%E9%9B%B6%E9%92%B1+python&spm=1018.2226.3001.4187