在C ++中使用变量作为数组参数

I am trying to write code that will compare a 10 sequence piece of DNA to that of a relative's 10 sequence DNA. The user inputs their name, how many relatives they want to compare, and their DNA. The computer outputs the percentage of a match. ATTAGACGCA compared to ATAAGACGCA would match 90%. The number of relatives is a constant after the user states how many relatives. I have tried using const, but it doesn't seem to want to use the number.I am trying to write code that will compare a 1