Author: ACMer

In Javascript, you can use Number.prototype.toFixed(n) that will return a string version that has n decimal places. For example, (3).toFixed(3) // "3.000" (3.15).toFixed(3) // "3.150" The toFixed will round …

Given a string S of ‘(‘ and ‘)’ parentheses, we add the minimum number of parentheses ( ‘(‘ or ‘)’, and in any positions ) so that the resulting …

According to here, you can now buy WXT if your are registered with Wirex (Free Registeration). The WXT (from WirexApp) is distributed on a first-come-first-serve basis at a fixed …

Serialization is the process of converting a data structure or object into a sequence of bits so that it can be stored in a file or memory buffer, or …

You need to construct a binary tree from a string consisting of parenthesis and integers. The whole input represents a binary tree. It contains an integer followed by zero, …