آموزش رایگان ++C ، Rust ,golang

#include <iostream>
#include <string>
#include <algorithm>

int main() {
    std::string userInput;

  
    std::cout << "Enter a string: ";
    std::getline(std::cin, userInput);


    std::transform(userInput.begin(), userInput.end(), userInput.begin(), ::toupper);


    std::cout << "Uppercase string: " << userInput << std::endl;

    return 0;
}

#include <iostream>
using namespace std;

void incrementByReference(int& x) { 
    x = x + 1; 
    cout << "Inside function: " << x << endl;
}

int main() {
    int num = 10;
    incrementByReference(num);
    cout << "Outside function: " << num << endl; 
    return 0;
}

Inside function: 11
Outside function: 11

#include <iostream>
using namespace std;

void incrementByValue(int x) {
    x = x + 1; 
    cout << "Inside function: " << x << endl;
}

int main() {
    int num = 10;
    incrementByValue(num);
    cout << "Outside function: " << num << endl; 
    return 0;
}

Inside function: 11
Outside function: 10

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

int main() {
    vector<int> numbers;
    numbers.push_back(10);
    numbers.push_back(20);
    numbers.push_back(30);
    for (int num : numbers) {
        cout << num << " ";
    }
    return 0;
}

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

int main() {
    ofstream file("example.txt");
    file << "سلام دنیا!";
    file.close();

    ifstream input("example.txt");
    string content;
    getline(input, content);
    cout << content << endl;
    input.close();

    return 0;
}

cout << "Enter the file URL: "; // پیام راهنما را به کنسول نمایش می‌دهد
cin >> url;                    // ورودی کاربر را می‌خواند و در متغیر url ذخیره می‌کند