摘要：Write a bash script to calculate the frequency of each word in a text filewords.txt.For simplicity sake, you may assume:words.txtcontains only lowerca... 阅读全文

摘要：How would you print just the 10th line of a file?For example, assume thatfile.txthas the following content:Line 1Line 2Line 3Line 4Line 5Line 6Line 7L... 阅读全文

摘要：Given a text filefile.txtthat contains list of phone numbers (one per line), write a one liner bash script to print all valid phone numbers.You may as... 阅读全文

摘要：You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single ... 阅读全文