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About C#

C# is a general-purpose, multi-paradigm programming language encompassing strong typing, lexically scoped, imperative, declarative, functional, generic, object-oriented, and component-oriented programming disciplines.

About C++

C++ is a general-purpose programming language created by Bjarne Stroustrup as an extension of the C programming language, or "C with Classes".

Palindrome Check Example: C# vs C++

Palindrome Check in C#

using System;
using System.Linq;

class Program {
    static bool IsPalindrome(string str) {
        string clean = new string(str.ToLower()
            .Where(c => Char.IsLetterOrDigit(c))
            .ToArray());
        return clean.SequenceEqual(clean.Reverse());
    }
    
    static void Main() {
        Console.WriteLine(IsPalindrome("A man, a plan, a canal: Panama")); // True
        Console.WriteLine(IsPalindrome("race a car")); // False
    }
}

Palindrome Check in C++

#include <iostream>
#include <string>
#include <algorithm>
using namespace std;

bool isPalindrome(string str) {
    string clean;
    // Keep alphanumeric chars and convert to lowercase
    for(char c : str) {
        if(isalnum(c)) {
            clean += tolower(c);
        }
    }
    
    string reversed = clean;
    reverse(reversed.begin(), reversed.end());
    return clean == reversed;
}

int main() {
    cout << boolalpha;
    cout << isPalindrome("A man, a plan, a canal: Panama") << endl; // true
    cout << isPalindrome("race a car") << endl; // false
    return 0;
}

Bubble Sort Example: C# vs C++

Bubble Sort in C#

using System;

class Program {
    static void BubbleSort(int[] arr) {
        int n = arr.Length;
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < n - i - 1; j++) {
                if (arr[j] > arr[j + 1]) {
                    int temp = arr[j];
                    arr[j] = arr[j + 1];
                    arr[j + 1] = temp;
                }
            }
        }
    }
    
    static void Main() {
        int[] arr = { 64, 34, 25, 12, 22, 11, 90 };
        BubbleSort(arr);
        Console.WriteLine(string.Join(" ", arr));
    }
}

Bubble Sort in C++

#include <iostream>
#include <vector>
using namespace std;

void bubbleSort(vector<int>& arr) {
    int n = arr.size();
    for(int i = 0; i < n; i++) {
        for(int j = 0; j < n - i - 1; j++) {
            if(arr[j] > arr[j + 1]) {
                swap(arr[j], arr[j + 1]);
            }
        }
    }
}

int main() {
    vector<int> arr = {64, 34, 25, 12, 22, 11, 90};
    bubbleSort(arr);
    
    for(int num : arr) {
        cout << num << " ";
    }
    return 0;
}

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