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How the sandbox works
- There is no practical C compiler that runs in a browser (that I know of), so your code is sent over HTTPS to the public Compiler Explorer sandbox (godbolt.org), compiled with GCC 15
- It compiles and runs inside an isolated container there; only the text output is returned, and nothing executes in your browser or on this site
- Don’t paste secrets or private data THE CODE LEAVES YOUR MACHINE
- The sandbox enforces its own CPU, memory, and time limits; output shown here is capped at 64 KB