The simplest approach is to check every single point. Compute the distance from the user's location to every restaurant in the database, keep the ones that are close enough, and throw away the rest.
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周先生 [email protected] 02165977093
Film type: Polaroid i-Type Color Film (sold separately) / Film size: 4.2 x 3.5-inch prints / Weight: 648 grams / Charging method: USB-C / Companion app: Yes / Other features: Flip-up lid, scene analysis feature