If you are using Visual Studio Code (VS Code) for solving C++ problems on platforms like Codeforces and you encounter issues with #include <bits/stdc++.h> not being supported, here's a simple solution to get it working.

• Create a bits folder: Start by creating a new folder named 'bits' in the same directory where your main C++ files for problem-solving are located.

• Create a header file: Inside the bits folder, create a new header file named stdc++.h. Make sure the extension of the file is .h to create a valid header file.

• Add necessary headers: Open the stdc++.h file and copy-paste the following commonly used C++ standard library headers into it:

#include <iostream>     // Input/output stream objects
#include <fstream>      // File stream objects
#include <sstream>      // String stream objects
#include <iomanip>      // Input/output manipulators
#include <string>       // String class and functions
#include <vector>       // Dynamic array
#include <list>         // Doubly linked list
#include <set>          // Set container
#include <map>          // Map container
#include <queue>        // Queue container
#include <stack>        // Stack container
#include <algorithm>    // Algorithms on sequences (e.g., sort, find)
#include <cmath>        // Mathematical functions
#include <ctime>        // Date and time functions
#include <cstdlib>      // General purpose functions (e.g., memory management)
#include <cstring>      // C-style string functions
#include <cctype>       // Character classification functions
#include <cassert>      // Assert function for debugging
#include <exception>    // Standard exceptions
#include <functional>   // Function objects
#include <iterator>     // Iterator classes
#include <limits>       // Numeric limits
#include <locale>       // Localization and internationalization
#include <numeric>      // Numeric operations (e.g., accumulate)
#include <random>       // Random number generators
#include <stdexcept>    // Standard exception classes
#include <typeinfo>     // Runtime type information
#include <utility>      // Utility components (e.g., std::pair)

• Include the header: Now, you can include the 'bits/stdc++.h' header in your main C++ files as you normally would: #include <bits/stdc++.h>

That's it! You have successfully set up #include <bits/stdc++.h> in VS Code for seamless C++ problem-solving.

Note: Keep in mind that these libraries cover the most commonly used functionalities. If you encounter additional libraries while coding, feel free to add them to the stdc++.h file to ensure you have access to all the necessary tools.

Happy coding and good luck in your coding journey! :)