问题描述
有堆栈溢出几个问题讨论如何找到两个值的最大公约数。一个很好的回答显示出整齐的 递归函数 做到这一点。
但我怎么能找到一套超过2个整数的GCD?我似乎无法找到这样的一个例子。
任何人都可以提出最有效的code来实现这个功能呢?
静态INT GCD(INT [] IntegerSet)
{
//发生的事情吗?
}
在这里,你必须使用LINQ和GCD的方法从你链接的问题code例子。它是利用在其他的答案中描述的理论算法... GCD(A,B,C)= GCD(GCD(A,B),C)
静态INT GCD(INT []号)
{
返回numbers.Aggregate(GCD);
}
静态INT GCD(INT A,INT B)
{
返回b == 0?答:GCD(B,A%B);
}
There are several questions on Stack Overflow discussing how to find the Greatest Common Divisor of two values. One good answer shows a neat recursive function to do this.
But how can I find the GCD of a set of more than 2 integers? I can't seem to find an example of this.
Can anyone suggest the most efficient code to implement this function?
static int GCD(int[] IntegerSet)
{
// what goes here?
}
And here you have code example using LINQ and GCD method from question you linked. It is using theoretical algorithm described in other answers ... GCD(a, b, c) = GCD(GCD(a, b), c)
static int GCD(int[] numbers)
{
return numbers.Aggregate(GCD);
}
static int GCD(int a, int b)
{
return b == 0 ? a : GCD(b, a % b);
}
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