Be careful, this question is a bit tricky!
算式:MM可為01,02,03,04,05,10,11,12 而MM可以區分三種形式 (一). 01,03,05,10,12 則 HH可為01,02,03,10,11,12,13,20,21,22 => 5x10=50 (二) 04,11 則HH可為01,02,03,10,11,12,20,21,22 => 2x9=18 (三) 02 則HH可為 01,02,10,11,12,20,21,22 => 1x8=8
50+18+8=76 #
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