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Showing posts with the label palindrome

What is XAML in WPF? Explained with Simple Examples

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In this article, we’ll dive into one of the core building blocks of WPF — XAML. We’ll explore how it works and why it plays such an important role in building modern desktop applications. What is XAML? XAML stands for eXtensible Application Markup Language. It’s a markup language used to design the user interface in WPF applications. XAML allows developers and designers to work separately, making the code cleaner and easier to manage. Think of it as HTML for WPF apps. XAML Syntax XAML uses XML-style syntax. Every UI element is an XML tag. Attributes define properties like height, width, and content. You can also nest elements inside others to create more complex layouts. For example, placing a TextBlock inside a Grid layout. <Grid>     <TextBlock Text="Hello, WPF World!"                 Width="200"                 Height="50"              ...

Leetcode - 125. Valid Palindrome

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 Problem statement: A phrase is a   palindrome   if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric characters include letters and numbers. Given a string  s , return  true   if it is a  palindrome , or  false  otherwise . Solution: Problem says, First convert all  uppercase letters into lowercase letters. Remove all non-alphanumeric characters. For first part, I will use ToLower() method of string class. this method will convert all the  uppercase letters into lowercase letters. For the second part, I will use Regex Replace method to remove all  non-alphanumeric characters.  public bool IsPalindrome(string s)   {         /*here i am checking if string is null or empty if so then it will be always                   ...