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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GM Matthew Wadsworth won in Ryde on tiebreak, Scottish GM Matthew Turner also shared first, while in Graz Scotland’s Freddy Waldhausen Gordon, 15, qualified for the IM title，更多细节参见服务器推荐