代码如下:
#include<stdio.h>int knapsack(int weight[], int value[], int count[], int n, int capacity)
{int* dp (int*)malloc(sizeof(int) * (capacity 1));for (int i 0; i < capacity; i){dp[i] 0;}for (int i 0; i < n; i)//核心代码{fo…
一. 数据库服务未启动
❌报错信息:
[postgresk8s-node2 ~]$ psql
psql: could not connect to server: No such file or directoryIs the server running locally and acceptingconnections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"…
HTML 学习之困,如何破局?
作为一名热衷于网页开发的博主,在 HTML 的学习道路上,我可谓是 “过关斩将”,但也遇到过不少 “硬茬”。起初,当我满心欢喜地以为掌握了基本的 HTML 标签,就能轻松搭建…