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K = 60-5(n-m)+m (mod 60)
±ÈÈ磺¼×Éê m = 1, n = 9, K = 60-5(9-1)+1 = 21;
ÓֱÈÈ磺¹ï³ó m = 10, n = 2, K = 60-5(2-10)+10 = 110 = 50 (mod 60)
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K = 60-5(n-m)+m (mod 60)
±ÈÈ磺¼×Éê m = 1, n = 9, K = 60-5(9-1)+1 = 21;
ÓֱÈÈ磺¹ï³ó m = 10, n = 2, K = 60-5(2-10)+10 = 110 = 50 (mod 60)
ÁíÍ⣬Äú±íÖÐÅźÅ40µÄӦ¸ÃÊǹï²»Êǹï³ó£¡


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