Visual Studio does not include this header by default. You can manually add it following these steps: How does #include work in C++? [duplicate]
The header file is a non-standard feature provided by the GNU C++ library (libstdc++) . It is essentially a "master header" that includes every standard C++ library file, such as , , and , with a single line of code. download bits/stdc++.h
While it is standard on most Linux-based competitive programming platforms, users of macOS or Windows often find it missing. Below is a guide on how to obtain or "download" its functionality for various environments. Visual Studio does not include this header by default
You don't usually download a single standalone file; rather, you either install a compiler that includes it (like GCC) or manually create the file for compilers that don't (like Clang or MSVC). It is essentially a "master header" that includes