Understanding the Problem An integer list of nums has numbers that could be either duplicate or non-duplicate. It is to leave 1-2 values for each number in the list in-place, which means it is nothing to do with returning any value from the method. #...
Understanding the Problem It is simply to find the common prefix in between the strings in the list strs. strs contains strings like strs = ["flower","flow","flight"]. In this case the common prefix will be ”fl” which is included in every string in c...
Understanding the Problem There are two strings given as haystack and needle. needle is the string that could be included in haystack or not included. If it is included, return the first index that needle occurs. If it is not included in haystack, re...
Understanding the Problem A string is given. It has spaces in between. The task is to return the last string’s length. If the string is s = “Hello world”, the last string will be ”world” and its length will be 5, so return 5. Approach My approach wil...