{"id":3394,"date":"2026-07-02T03:01:12","date_gmt":"2026-07-02T03:01:12","guid":{"rendered":"https:\/\/csofferprep.com\/uber-swe-oa-marketplace-eta-debug\/"},"modified":"2026-07-03T00:00:05","modified_gmt":"2026-07-03T00:00:05","slug":"uber-swe-oa-marketplace-eta-debug","status":"publish","type":"post","link":"https:\/\/csofferprep.com\/zh_tw\/oa\/uber-swe-oa-marketplace-eta-debug\/","title":{"rendered":"Uber SWE OA \u9762\u7ecf\uff5cMarketplace Simulation\u3001ETA Graph \u4e0e Debug \u9898\u578b\u89e3\u6790"},"content":{"rendered":"<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/csofferprep.com\/wp-content\/uploads\/2026\/07\/csofferprep_uber_oa_2026-07-02.png\" alt=\"Uber OA \u9762\u7ecf\u914d\u56fe\" \/><\/figure>\n<p>Uber SWE OA \u5f88\u9002\u5408\u8003 marketplace \u573a\u666f\uff1a\u53f8\u673a\u3001\u4e58\u5ba2\u3001\u8def\u7ebf\u3001\u8ba2\u5355\u3001\u4ef7\u683c\u3001\u72b6\u6001\u6d41\u8f6c\u90fd\u80fd\u81ea\u7136\u53d8\u6210\u7b97\u6cd5\u9898\u3002\u51c6\u5907\u65f6\u522b\u53ea\u5237\u6a21\u677f\u9898\uff0c\u8981\u628a\u9898\u76ee\u6539\u6210 ride request\u3001driver location\u3001fare event \u8fd9\u4e9b\u5bf9\u8c61\u6765\u7ec3\u3002\u53ef\u4ee5\u5148\u770b <a href=\"https:\/\/www.interviewquery.com\/interview-guides\/uber-software-engineer\" target=\"_blank\" rel=\"noopener\">Uber Software Engineer interview guide<\/a>\uff0c\u518d\u628a\u6570\u7ec4\u3001\u56fe\u548c\u72b6\u6001\u673a\u653e\u5230\u4e1a\u52a1\u9898\u91cc\u590d\u76d8\u3002<\/p>\n<h2>\u7b2c\u4e00\u9898\uff1aDriver Availability Window<\/h2>\n<h3>\u9898\u76ee\u63cf\u8ff0<\/h3>\n<p>\u7ed9\u5b9a\u4e00\u6279\u53f8\u673a\u72b6\u6001\u4e8b\u4ef6\uff0c\u6bcf\u6761\u4e8b\u4ef6\u5305\u542b <code>driver_id<\/code>\u3001<code>city_id<\/code>\u3001<code>timestamp<\/code> \u548c <code>event_type<\/code>\u3002<code>event_type<\/code> \u53ea\u6709 <code>online<\/code>\u3001<code>offline<\/code>\u3001<code>on_trip<\/code>\u3001<code>available<\/code> \u56db\u79cd\u3002\u8981\u6c42\u7edf\u8ba1\u6307\u5b9a\u57ce\u5e02\u5728 <code>[start, end]<\/code> \u65f6\u95f4\u7a97\u53e3\u5185\uff0c\u6bcf\u5206\u949f\u53ef\u63a5\u5355\u53f8\u673a\u6570\u91cf\u7684\u6700\u5927\u503c\u548c\u5e73\u5747\u503c\u3002<\/p>\n<h3>\u89e3\u9898\u601d\u8def<\/h3>\n<p>\u5148\u6309 <code>driver_id<\/code> \u5206\u7ec4\u5e76\u6309\u65f6\u95f4\u6392\u5e8f\uff0c\u628a\u6bcf\u4e2a\u53f8\u673a\u7684\u72b6\u6001\u6d41\u8f6c\u8f6c\u6210\u53ef\u63a5\u5355\u533a\u95f4\u3002\u53ea\u6709\u4ece <code>online<\/code> \u6216 <code>available<\/code> \u5f00\u59cb\uff0c\u5230 <code>offline<\/code> \u6216 <code>on_trip<\/code> \u7ed3\u675f\u7684\u65f6\u95f4\u6bb5\u8fdb\u5165\u7edf\u8ba1\u3002\u6bcf\u6bb5\u533a\u95f4\u88c1\u526a\u5230\u67e5\u8be2\u7a97\u53e3\u5185\uff0c\u518d\u7528\u5dee\u5206\u6570\u7ec4\u6216\u626b\u63cf\u7ebf\u505a\u533a\u95f4\u52a0\u4e00\u3002\u7a97\u53e3\u5f88\u5927\u65f6\u4e0d\u80fd\u771f\u7684\u5f00\u5206\u949f\u6570\u7ec4\uff0c\u53ef\u4ee5\u628a\u7aef\u70b9\u4e8b\u4ef6\u653e\u8fdb\u5217\u8868\u6392\u5e8f\uff0c\u6309\u76f8\u90bb\u7aef\u70b9\u7684\u957f\u5ea6\u52a0\u6743\u8ba1\u7b97\u5e73\u5747\u503c\u3002\u91cd\u590d\u4e8b\u4ef6\u76f4\u63a5\u8986\u76d6\u5f53\u524d\u72b6\u6001\uff0c\u4e0d\u751f\u6210\u65b0\u7247\u6bb5\uff1b\u7ed3\u675f\u65e9\u4e8e\u5f00\u59cb\u7684\u5f02\u5e38\u65e5\u5fd7\u8df3\u8fc7\u5e76\u8ba1\u6570\u3002<strong>\u590d\u6742\u5ea6<\/strong>\uff1a\u6392\u5e8f O(n log n)\uff0c\u626b\u63cf O(n)\uff0c\u7a7a\u95f4 O(n)\u3002<\/p>\n<h2>\u7b2c\u4e8c\u9898\uff1aETA Shortest Path<\/h2>\n<h3>\u9898\u76ee\u63cf\u8ff0<\/h3>\n<p>\u7ed9\u5b9a\u57ce\u5e02\u8def\u7f51\uff0c\u8282\u70b9\u662f\u8def\u53e3\uff0c\u8fb9\u5305\u542b\u8ddd\u79bb\u548c\u5b9e\u65f6\u62e5\u5835\u7cfb\u6570\u3002\u8f93\u5165\u4e58\u5ba2\u8d77\u70b9\u3001\u7ec8\u70b9\u548c\u4e00\u6279\u5019\u9009\u53f8\u673a\u4f4d\u7f6e\uff0c\u8fd4\u56de ETA \u6700\u77ed\u7684 K \u4e2a\u53f8\u673a\u3002\u8fb9\u6743\u7b49\u4e8e <code>distance * traffic_factor<\/code>\uff0c\u6240\u6709\u6743\u91cd\u4e3a\u6b63\u6570\u3002<\/p>\n<h3>\u89e3\u9898\u601d\u8def<\/h3>\n<p>\u4ece\u4e58\u5ba2\u8d77\u70b9\u53cd\u5411\u8dd1 Dijkstra\uff0c\u5230\u6240\u6709\u5019\u9009\u53f8\u673a\u4f4d\u7f6e\u62ff\u8ddd\u79bb\uff0c\u518d\u9009 ETA \u6700\u77ed\u7684 K \u4e2a\u3002\u5019\u9009\u53f8\u673a\u6570\u91cf\u5c11\u65f6\uff0c\u4e5f\u53ef\u4ee5\u4ece\u6bcf\u4e2a\u53f8\u673a\u4f4d\u7f6e\u8dd1\u5230\u4e58\u5ba2\u8d77\u70b9\uff0c\u4f46\u53cd\u5411\u4e00\u6b21 Dijkstra \u66f4\u7a33\u3002Top K \u7528\u5c0f\u9876\u5806\u6216\u6392\u5e8f\u90fd\u80fd\u505a\uff0cK \u8fdc\u5c0f\u4e8e\u5019\u9009\u6570\u91cf\u65f6\u7528\u5927\u5c0f\u4e3a K \u7684\u5806\u3002Follow-up \u4f1a\u52a0\u5165\u8def\u7f51\u66f4\u65b0\uff0c\u8fd9\u65f6\u628a\u56fe\u5b58\u6210\u90bb\u63a5\u8868\uff0c\u5b9e\u65f6\u8fb9\u6743\u4ece traffic map \u8bfb\u53d6\uff1b\u9891\u7e41\u67e5\u8be2\u53ef\u4ee5\u6309 geohash \u5148\u7b5b\u6389\u8fdc\u8ddd\u79bb\u53f8\u673a\uff0c\u518d\u8dd1\u7cbe\u786e\u8def\u5f84\u3002<strong>\u590d\u6742\u5ea6<\/strong>\uff1aDijkstra \u4e3a O((V + E) log V)\uff0c\u9009 K \u4e3a O(d log K)\uff0cd \u662f\u5019\u9009\u53f8\u673a\u6570\u3002<\/p>\n<h2>\u7b2c\u4e09\u9898\uff1aTrip State Debug<\/h2>\n<h3>\u9898\u76ee\u63cf\u8ff0<\/h3>\n<p>\u7ed9\u4e00\u6bb5 trip \u7ed3\u7b97\u4ee3\u7801\uff0c\u4ee3\u7801\u4f1a\u8bfb\u53d6 <code>requested<\/code>\u3001<code>accepted<\/code>\u3001<code>started<\/code>\u3001<code>completed<\/code>\u3001<code>cancelled<\/code> \u4e8b\u4ef6\u5e76\u8ba1\u7b97\u6700\u7ec8\u6536\u5165\u3002\u9690\u85cf\u6d4b\u8bd5\u91cc\u51fa\u73b0\u91cd\u590d\u4e8b\u4ef6\u3001\u53d6\u6d88\u665a\u4e8e\u5b8c\u6210\u3001\u5b8c\u6210\u65e9\u4e8e\u5f00\u59cb\u3001\u4ee5\u53ca\u540c\u4e00\u4e2a trip \u88ab\u4e24\u4e2a\u53f8\u673a\u63a5\u53d7\u3002\u8981\u6c42\u4fee\u590d bug\uff0c\u4fdd\u6301\u51fd\u6570\u7b7e\u540d\u4e0d\u53d8\u3002<\/p>\n<h3>\u89e3\u9898\u601d\u8def<\/h3>\n<p>\u5148\u5b9a\u4e49\u5408\u6cd5\u72b6\u6001\u673a\uff1a<code>requested -&gt; accepted -&gt; started -&gt; completed<\/code>\uff0c<code>requested\/accepted<\/code> \u9636\u6bb5\u53ef\u4ee5\u8fdb\u5165 <code>cancelled<\/code>\uff0c<code>completed<\/code> \u540e\u4e0d\u518d\u63a5\u53d7\u72b6\u6001\u53d8\u5316\u3002\u5b9e\u73b0\u65f6\u7528 <code>trip_id -&gt; state<\/code>\u3001<code>trip_id -&gt; driver_id<\/code> \u548c <code>trip_id -&gt; fare<\/code> \u4fdd\u5b58\u5386\u53f2\u3002\u91cd\u590d\u4e8b\u4ef6\u8fd4\u56de\u5f53\u524d\u72b6\u6001\uff0c\u4e0d\u91cd\u590d\u7ed3\u7b97\uff1b\u7b2c\u4e8c\u4e2a\u53f8\u673a\u63a5\u53d7\u540c\u4e00 trip \u65f6\u62d2\u7edd\uff1b<code>completed<\/code> \u5fc5\u987b\u68c0\u67e5\u5df2\u7ecf <code>started<\/code> \u4e14 fare \u5408\u6cd5\u3002Debug \u9898\u7684\u5173\u952e\u662f\u5c11\u6539\u4e3b\u6d41\u7a0b\uff0c\u5148\u8865\u72b6\u6001\u68c0\u67e5\uff0c\u518d\u52a0\u6d4b\u8bd5\u8986\u76d6\u4e71\u5e8f\u3001\u91cd\u590d\u3001\u975e\u6cd5\u91d1\u989d\u548c\u51b2\u7a81\u53f8\u673a\u3002<strong>\u590d\u6742\u5ea6<\/strong>\uff1a\u5355\u6b21\u626b\u63cf O(n)\uff0c\u7a7a\u95f4 O(t)\uff0ct \u662f trip \u6570\u3002<\/p>\n<h2>\u5907\u8003\u5efa\u8bae<\/h2>\n<p>Uber OA \u53ef\u4ee5\u6309\u4e09\u7ec4\u9898\u51c6\u5907\uff1a\u65e5\u5fd7\u7a97\u53e3\u805a\u5408\u3001\u56fe\u4e0a\u6700\u77ed\u8def\u6216\u533a\u57df\u7b5b\u9009\u3001\u72b6\u6001\u673a Debug\u3002\u5237\u9898\u65f6\u628a\u666e\u901a\u6570\u7ec4\u9898\u6539\u6210 driver\/trip\/fare \u8bed\u5883\uff0c\u7ec3\u4e60\u5728 40 \u5206\u949f\u5185\u5199\u51fa\u53ef\u8bfb\u4ee3\u7801\u548c\u8fb9\u754c\u6d4b\u8bd5\u3002\u56fe\u9898\u8981\u719f\u6089 Dijkstra\u3001BFS\u3001\u5806\u548c\u90bb\u63a5\u8868\uff1b\u72b6\u6001\u673a\u9898\u8981\u5148\u753b\u72b6\u6001\uff0c\u518d\u5199\u4ee3\u7801\u3002<\/p>\n<h2>FAQ<\/h2>\n<h3>Uber SWE OA \u8981\u91cd\u70b9\u7ec3\u54ea\u4e9b\u6570\u636e\u7ed3\u6784\uff1f<\/h3>\n<p>\u54c8\u5e0c\u8868\u3001\u5806\u3001\u6392\u5e8f\u3001\u626b\u63cf\u7ebf\u3001\u56fe\u641c\u7d22\u3001Dijkstra \u548c\u72b6\u6001\u673a\u90fd\u8981\u7ec3\u3002\u9898\u9762\u4f1a\u5e26\u4e1a\u52a1\u5bf9\u8c61\uff0c\u4f46\u6838\u5fc3\u8fd8\u662f\u6570\u636e\u7ed3\u6784\u9009\u62e9\u548c\u8fb9\u754c\u5904\u7406\u3002<\/p>\n<h3>Debug \u9898\u600e\u4e48\u5199\u6d4b\u8bd5\uff1f<\/h3>\n<p>\u81f3\u5c11\u8986\u76d6\u91cd\u590d\u4e8b\u4ef6\u3001\u4e71\u5e8f\u4e8b\u4ef6\u3001\u975e\u6cd5\u72b6\u6001\u8df3\u8f6c\u3001\u7a7a\u8f93\u5165\u3001\u540c\u4e00\u8ba2\u5355\u91cd\u590d\u7ed3\u7b97\u548c\u91d1\u989d\u5f02\u5e38\u3002\u6d4b\u8bd5\u540d\u5199\u6e05\u573a\u666f\uff0c\u65b9\u4fbf\u9762\u8bd5\u5b98\u770b\u61c2\u4f60\u7684\u4fee\u590d\u610f\u56fe\u3002<\/p>\n<h3>\u56fe\u9898\u4e0d\u4f1a\u4f18\u5316\u600e\u4e48\u529e\uff1f<\/h3>\n<p>\u5148\u5199\u6b63\u786e\u7684 Dijkstra\uff0c\u518d\u89e3\u91ca\u7b5b\u9009\u5019\u9009\u53f8\u673a\u3001\u7f13\u5b58\u70ed\u70b9\u533a\u57df\u3001\u6309\u5730\u7406\u683c\u5b50\u7f29\u5c0f\u641c\u7d22\u8303\u56f4\u3002\u4f18\u5316\u8981\u5efa\u7acb\u5728\u6b63\u786e\u8def\u5f84\u8ba1\u7b97\u4e0a\u3002<\/p>\n<h2>\u5173\u4e8e CSOFFERPREP<\/h2>\n<p>\u8fdb VO \u4e4b\u524d\uff0c\u53ef\u4ee5\u627e CSOFFERPREP \u505a\u5b9e\u65f6\u9762\u8bd5\u52a9\u653b\u548c\u5907\u8003\u8f85\u5bfc\u3002CSOFFERPREP \u6df1\u8015\u5317\u7f8e IT \u884c\u4e1a\u591a\u5e74\uff0c\u5df2\u5e2e\u52a9\u4e07\u4f59\u540d\u5b66\u751f\u8fdb\u5165\u5168\u7403 500 \u5f3a\u4f01\u4e1a\u3002\u5bfc\u5e08\u6765\u81ea\u4e00\u7ebf\u5927\u5382\u8d44\u6df1\u5de5\u7a0b\u5e08\u548c\u9762\u8bd5\u5b98\uff0c\u5bf9 Uber \u8fd9\u7c7b\u6ce8\u91cd\u5de5\u7a0b\u6587\u5316\u7684\u516c\u53f8\u7684\u9762\u8bd5\u5957\u8def\u5f88\u719f\u6089\u3002\u65e0\u8bba\u662f OA\u8f85\u52a9\u3001OA \u8f85\u5bfc\u3001VO \u8f85\u52a9\u3001VO \u6a21\u62df\u9762\u8bd5\u3001VO \u8f85\u52a9\u8fd8\u662f\u7cfb\u7edf\u8bbe\u8ba1\u8f85\u52a9\uff0c\u90fd\u53ef\u4ee5\u83b7\u5f97\u66f4\u6709\u9488\u5bf9\u6027\u7684\u51c6\u5907\u65b9\u6848\uff1a<a href=\"https:\/\/csofferprep.com\/price\/\" target=\"_blank\" rel=\"noopener\">CSOFFERPREP \u00b7 \u670d\u52a1\u8be6\u60c5<\/a><\/p>\n<h2>\u53c2\u8003\u6765\u6e90<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.interviewquery.com\/interview-guides\/uber-software-engineer\" target=\"_blank\" rel=\"noopener\">Interview Query &#8211; Uber Software Engineer Interview Guide<\/a><\/li>\n<li><a href=\"https:\/\/www.tryexponent.com\/guides\/uber-software-engineer-interview\" target=\"_blank\" rel=\"noopener\">Exponent &#8211; Uber Software Engineer Interview Guide<\/a><\/li>\n<li><a href=\"https:\/\/www.glassdoor.com\/Interview\/Uber-Software-Engineer-Interview-Questions-EI_IE575263.0%2C4_KO5%2C22.htm\" target=\"_blank\" rel=\"noopener\">Glassdoor &#8211; Uber Software Engineer Interview Questions<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Uber SWE OA \u9762\u7ecf\u590d\u76d8\uff0c\u62c6\u89e3 Driver Availability Window\u3001ETA Shortest Path\u3001Trip State Debug \u4e09\u7c7b\u9898\u578b\u548c\u5907\u8003\u91cd\u70b9\u3002<\/p>","protected":false},"author":4,"featured_media":3393,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-3394","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-oa","resize-featured-image"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 4.9.9 - aioseo.com -->\n\t<meta name=\"description\" content=\"Uber SWE OA \u9762\u7ecf\u590d\u76d8\uff0c\u62c6\u89e3 Driver Availability Window\u3001ETA Shortest Path\u3001Trip State Debug \u4e09\u7c7b\u9898\u578b\u548c\u5907\u8003\u91cd\u70b9\u3002\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Jassi Chen\"\/>\n\t<meta name=\"google-site-verification\" content=\"7Vui5ipm5Zv0f3VNwLQTZawkbc-OgZCtuQlvsWV-aWk\" \/>\n\t<link rel=\"canonical\" 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