Array ( [0] => Array ( [title] => L14A [link] => https://www.youtube.com/embed/PT7NZtKonZk ) [1] => Array ( [title] => L14B [link] => https://www.youtube.com/embed/4zwsGPrmi94 ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - 第14講 Solving Recurrences by GF