shithub: puzzles

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Adjust Undead upper grid-size limit to avoid overflow

--- a/undead.c

+++ b/undead.c

@@ -193,9 +193,9 @@

 static const char *validate_params(const game_params *params, bool full)

 {

-    if ((params->w * params->h ) > 54)  return "Grid is too big";

     if (params->w < 3)                  return "Width must be at least 3";

     if (params->h < 3)                  return "Height must be at least 3";

+    if (params->w > 54 / params->h)     return "Grid is too big";

     if (params->diff >= DIFFCOUNT)      return "Unknown difficulty rating";

     return NULL;

 }