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API Integration Migrating Off a Per-Solve Solver Without a Rewrite
The legacy in.php / res.php protocol is shared by several solvers, so switching providers is usually a host swap, not new code.

Migrating Off a Per-Solve Solver Without a Rewrite

The legacy in.php / res.php protocol is shared by several solvers, so switching providers is usually a host s…

Aug 14, 2026