Number (4): Everything in this space must add up to 4. The answer is 5-3, placed vertically; 1-1, placed horizontally.
For our purposes, we don’t even need to chase it all the way to raw PCM which is valid avenue albeit in the realm of WEBRips and not defacto “downloaders.” We just need to find the last point in the pipeline where data is still accessible to JavaScript and that point is the MediaSource Extensions API, specifically the SourceBuffer.appendBuffer() method.
，这一点在快连下载安装中也有详细论述
void mergeSort(int arr[], int n) {
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