How to Check if a Given String has Unique Characters?
Given a string s, determine whether it has all unique characters. Example 1 Input s = “abcde” Output true Explanation All characters only occur once Example 2 Input s …
Left and Right Counter Algorithm to Find the Longest Mountain in Array
Let’s call any (contiguous) subarray B (of A) a mountain if the following properties hold: B.length >= 3 There exists some 0 < i < B.length – 1 such …
Compute the Largest Substring Between Two Equal Characters using Hash Table
Given a string s, return the length of the longest substring between two equal characters, excluding the two characters. If there is no such substring return -1. A substring …
C++ Solution Template for Google Kickstart Contest Online Judge
Code submitted to Google Kickstart Online Judge is a complete solution that includes reading from stdin and output the answers for each test cases to stdout. There will be …
How to Fix the Wired Connection Dropping Momentary Due to Failling to Get a New IP via DHCP?
Recently, I have been experiencing the cable/wired connection drops momentarily every few hours and fails to get a new IP (the network adapter shows trying to identifying..) via DHCP …
Algorithm to Compute the Maximum Nesting Depth of the Parentheses
A string is a valid parentheses string (denoted VPS) if it meets one of the following: It is an empty string “”, or a single character not equal to …