UPGRADE30 CODE LAB

C & C++ Compiler

Upgrade30 Code Lab. Write, edit and run complete C or C++ programs, provide standard input, inspect output and compiler diagnostics, and start quickly with placement-oriented templates.

Fast Native RunnerCompile and run from Upgrade30 without loading an external editor iframe.

Standard InputTest programs that use cin, scanf and other input-driven logic.

Starter TemplatesLoad common placement-ready C and C++ examples in one click.

Sandboxed ExecutionRuns have strict time, memory and process limits and no network access.

main.cpp

#include <iostream>

int main() {
    std::cout << "Hello from Upgrade30 Code Lab!\n";
    return 0;
}

Console

Ready

Ready. Write code and press Run.

Standard Input

stdin

Language: C++ · File: main.cppNative Upgrade30 runner