需求1:给定一个RDD[Double],进行计算,该RDD的统计信息(count,mean,stdev,max,min) 代码: def main(args: Array[String]): Unit = { val conf = new SparkConf().setMaster("local[2]").setAppName(this.getClass.getName) val sc = new SparkContext(conf) sc.setLogLevel("warn
(一)改错题 输出华氏摄氏温度转换表:输入两个整数lower和upper,输出一张华氏摄氏温度转换表,华氏温度的取值范围是{lower,upper},每次增加2℉.计算公式如下: c = 5×(f-32)/9 其中,c表示摄氏温度,f表示华氏温度. 输入输出样例1: Enter lower:32 Enter upper:35 fahr celsius 32 0.0 34 1.1 输入输出样例2: Enter lower:40 Enter upper:30 fahr celsius 源程序(有错误
2014-05-02 03:37 题目链接 原题: A string is called sstring if it consists of lowercase english letters and no two of its consecutive characters are the same. You are given string s of length n. Calculate the number of sstrings of length that are not lexico