An "Armstrong number" is an n-digit number that is equal to the sum of the nth powers of its individual digits. For example, 153 is an Armstrong number because it has 3 digits and 13+53+33=153. What is the digit k in the Armstrong number 1,6k4?
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请问这题怎么做 难道不是1的四次方加6的四次方加k的四次方加4的四次方的16k4吗
等于1604+10k,要把k换算成digit,不然左边是digit,右边是decimal是算不出来的。
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