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1.题目要求:

2.题目代码:

class Solution {
public:int integerBreak(int n) {//先确定dp数组vector<int> dp;//1.确定dp数组的含义//2.确定dp的递推公式//3.初始化dp数组//4.遍历顺序dp.resize(n + 1);dp[0] = 0;dp[1] = 0;dp[2] = 1;for(int i = 3;i <= n;i++){for(int j = 1;j < i;j++){vector<int> array;array.push_back(j * (i - j));array.push_back(j * dp[i - j]);array.push_back(dp[i]);vector<int> :: iterator it = max_element(array.begin(),array.end());dp[i] = *it;}}return dp[n];}
};