Electrification Plan 时间限制: 1 Sec 内存限制: 128 MB提交: 31 解决: 13[提交][状态][讨论版] 题目描述 Some country has n cities. The government has decided to electrify all these cities. At first, power stations in k different cities were built. The other cities should be…
动态地址访问像素:src.at<Vec3b>(i, j)[0].src.at<uchar>(i, j) int b = src.at<Vec3b>(i, j)[0];int g = src.at<Vec3b>(i, j)[1];int r = src.at<Vec3b>(i, j)[2]; 用来访问三通道图像的单个像素.对于三通道图像,每个像素存储了三个值,分别为蓝色.绿色.红色通道上的数值. int gray_data = gray.at&l…