sinat_41859367的博客

java输出包含小数位的double型数据 System.out.println("%.4f",d); 报错：The method println(double) in the type PrintStream is not applicable for the arguments (String, double) 原因：Java的输出中System是java.lang里面的一个类 public final class System out是System里面的一个静态数据成员 ，out的类型是

665.Non-decreasing Array Easy？！ Given an array withnintegers, your task is to check if it could become non-decreasing by modifyingat most1element. We define an array is non-decreasing ifarra...