今天访问已经架上服务器的网站,报错: Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 78,050,512 milliseconds ago. The last packet sent successfully to the server was 78,050,512 milliseconds ago.…
A - Addition and Subtraction Easy Time limit : 2sec / Memory limit : 256MB Score : 100 points Problem Statement Joisino wants to evaluate the formula "A op B". Here, A and B are integers, and the binary operator op is either + or -. Your task is…
#include "000库函数.h" //使用折半算法 牛逼算法 class Solution { public: double myPow(double x, int n) { if (n == 0)return 1; double res = 1.0; for (int i = n; i != 0; i /= 2) { if (i % 2 != 0) res *= x; x *= x; } return n > 0 ? res : 1 / res; } }; //同样使用二…