We are given that the string "abc" is valid. From any valid string V, we may split V into two pieces X and Y such that X + Y (X concatenated with Y) is equal to V. (Xor Y may be empty.) Then, X + "abc" + Y is also valid. If for examp…
题目如下: We are given that the string "abc" is valid. From any valid string V, we may split V into two pieces X and Y such that X + Y (X concatenated with Y) is equal to V. (X or Y may be empty.) Then, X + "abc" + Y is also valid. If fo…
作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 循环 日期 题目地址:https://leetcode.com/problems/check-if-word-is-valid-after-substitutions/ 题目描述 We are given that the string "abc" is valid. From any valid string V, we may spli…
We are given that the string "abc" is valid. From any valid string V, we may split V into two pieces X and Y such that X + Y (X concatenated with Y) is equal to V. (X or Y may be empty.) Then, X + "abc" + Y is also valid. If for exam…
ERROR: The estimated pi0 <= 0. Check that you have valid p-values or use a different range of lambda. 重现错误的代码: ps <- runif(3e5)library(qvalue)ps <- ps[ps < 0.75]qs <- qvalue(ps) Error in pi0est(p, ...) : ERROR: The estimated pi0 <= 0. C…
