给定一个正整数 n,将其拆分为至少两个正整数的和,并使这些整数的乘积最大化。 返回你可以获得的最大乘积。
例如,给定 n = 2,返回1(2 = 1 + 1);给定 n = 10,返回36(10 = 3 + 3 + 4)。
注意:你可以假设 n 不小于2且不大于58。

详见:https://leetcode.com/problems/integer-break/description/

C++:

class Solution {
public:
int integerBreak(int n) {
if(n==2||n==3)
{
return n-1;
}
int res=1;
while(n>4)
{
res*=3;
n-=3;
}
return res*n;
}
};

参考:https://www.cnblogs.com/grandyang/p/5411919.html

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