1.一个个位和十位数字相同的两位数,当你将其乘以99时,你得到一个十位为5的四位数。请问乘出的数是多少? 很简单啊。穷举就可以了。最后原两位数为44,乘出的数为4356。 2.一场跑步赛有12位选手标有不同的号码。到达终点时,如果他们的号码和他们的名次满足这样的关系:对每一位选手,他的号码和名次成绩乘积都比一个13的倍数大1,那么他们各自的名次应该是多少? 翻译过来就简单了嘛。显然应该是(从1号到12号分别是):1,7,9,10,8,11,2,5,3,4,6,12 第二题附vb穷举的程序 对于答案的唯一性,数学上有严格证明,就不在此赘述了 祝你答得开心~ vb程序: For i = 1 To 12 For j = 1 To 12 If i * j Mod 13 = 1 Then Text1 = Text1 & "," & Str$(j) & " " Next Next
英文奥林匹克数学题!1.The digits of a 2-digit number are the same.When
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