see-121. Best Time to Buy and Sell Stock

eMMC数据擦除的方式 接下来主要是讲解erase、trim、discard的差异,涉及的command有CMD35、CMD36、CMD38。一般用来擦除整卡或者某些分区,如果只想擦除一个。以下是device status的部分解释。eMMC的数据擦除方式有6种,分别是。将会跳过写保护,只执行其他的范围。Discard的命令序列是。Erase的命令序列是。的范围有包含写保护,Trim的命令序列是。 阅读详情

遍历数组,记录截至当前元素为止,期间的最小元素,与当前元素求差,求得盈利,并更新最大盈利值。

class Solution {
public:
    int maxProfit(vector<int>& prices) {
        int low=INT_MAX,temp=0;
        int ans=0;
        for(int i=0;i<prices.size();i++)
        {
            low=min(low,prices[i]);
            temp=prices[i]-low;
            ans=max(ans,temp);
        }
        return ans;
    }
};

 

神经网络学习笔记-波尔兹曼(Boltzmann)机 Boltzmann机是一种反馈随机神经网络 两种输出状态,单极性0或1。输出状态的取值根据概率统计法则决定,这种概率统计法则类似Boltzmann分布,部分反馈 它在神经元状态变化中引入了统计概率,网络的平衡状态服从Boltzmann分布,网络运行机制基于模拟退火算法。 离散Hopfield神经网络+模拟退火+隐单元=Boltzman机 DHNN全反馈,转移函数:符号函数 BM机网络拓扑... 阅读详情

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