Update app.py

app.py

@@ -2,6 +2,17 @@ import gradio as gr
 from packaging import version
 import subprocess, tempfile, os, uuid, resource
 
+# ----------  utilidades  ----------
+def _detect_c_language():
+    """
+    Devuelve 'c' si está en la lista de lenguajes de gr.Code,
+    o 'cpp' como fallback para versiones antiguas (<4.0).
+    """
+    langs = getattr(gr.Code, "languages", [])
+    return "c" if "c" in langs else "cpp"
+
+code_lang = _detect_c_language()
+
 # --- Función principal --------------------------------------------------------
 def compile_and_run(code: str, stdin: str = "") -> str:
     """
@@ -71,18 +82,18 @@ También disponible como endpoint REST (`/run/predict`).
 """
 
 demo = gr.Interface(
-        fn          = compile_and_run,
-        inputs      = [
-            gr.Code(language="c", label="Código C"),
-            gr.Textbox(lines=3, placeholder="Entrada estándar (stdin)", label="Stdin (opcional)")
-        ],
-        outputs     = gr.Textbox(label="Resultado"),
-        title       = title,
-        description = description,
-        examples    = [
-            [r"#include <stdio.h>\nint main(){printf(\"Hola 42!\\n\");}", ""],
-            [r"#include <stdio.h>\nint main(){int a,b;scanf(\"%d %d\",&a,&b);printf(\"%d\\n\",a+b);}", "3 4"]
-        ],
+    fn      = compile_and_run,
+    inputs  = [
+        gr.Code(language=code_lang, label="Código C"),
+        gr.Textbox(lines=3, placeholder="Entrada estándar (stdin)", label="Stdin (opcional)")
+    ],
+    outputs = gr.Textbox(label="Resultado"),
+    title   = title,
+    description = description,
+    examples = [
+        [r"#include <stdio.h>\nint main(){printf(\"Hola 42!\\n\");}", ""],
+        [r"#include <stdio.h>\nint main(){int a,b;scanf(\"%d %d\",&a,&b);printf(\"%d\\n\",a+b);}", "3 4"]
+    ],
 )
 
 if __name__ == "__main__":