传感器输出的引脚电平是由传感器是常闭还是常开决定的;light on和 dark on决定的是触发信号;
PNP-NO常开:在没有信号触发时,输出线是悬空的(即VCC电源线和OUT线断开),输出为低电平或不确定状态…
色板游戏 - 洛谷
核心思路
用珂朵莉树处理区间赋值、计算颜色。
加一个记录答案,就可以过掉全部数据。
AC代码
#include<bits/stdc.h>
#define ll long long
using namespace std;
struct ran{int l, r;mutable int v;bool operator <(const ran &…
JetBrains对JavaDocs的描述: Javadoc comments are usually placed above classes, methods, or fields in your source code. A Javadoc provides a description of the code element located under it and contains block tags marked with with specific metada…