I don’t think you can run C++ on Stackblitz. Also, your URL has js- in it and I’m pretty sure that is what you get with the plain JS template. Which you definitely can’t use to run C++ code. You need a compiler.
hey sorry if I’m wasting yalls time but I’m new to this and no one i know, knows how to code so iI’m just using this to get in to the coding communatiy