传送门 本题是让计算方案数,考虑如何设计dp的状态,注意到我们需要计数的排列的性质与前若干个元素的最大值有关。不妨先将 a a a数组从小到大排个序,然后用 d p [ i ] [ j ] dp[i][j] dp[i][j]表示长度为 i i i的排列满足最大元素为 a j a_j …
题目链接:115.157.200.87/front/problem?problemId1056(HNU内网访问) Problem Description The ocean can be represented as the first quarter of the Cartesian plane. There are n fish in the ocean. Each fish has its own coordinate…
跟着周老师学习Spring Cloud,在订单模块通过Eureka服务与注册中心调用支付模块报错No instances available for CLOUD-PAYMENT-SERVICEpayment,显示无法在Eureka中找到支付服务的实例
Whitelabel Error Page
This application has no explicit mapping…