// Producers are supposed to wait for the writer.ready
Мир Российская Премьер-лига|19-й тур
，这一点在safew官方版本下载中也有详细论述
int i = 0, j = 0, k = left; // i:左数组指针, j:右数组指针, k:原数组指针
That’s the basis of our custom renderer - we diff each cell and only print changed characters. Here’s the same example from above - but now we just patch the 6 changed cells.