// 栈不为空时才判断（避免访问stack.at(-1)时报错）
process(chunk);
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Samsung also continues to match Google's promise of at least seven years of software updates for its Galaxy S models. That is to say, you'll feel like you got your money's worth when splurging on Samsung's flagship phone.，详情可参考一键获取谷歌浏览器下载
Implementing natural neighbour interpolation implies the construction of a geometric Voronoi diagram, however this is not strictly the case. Since the Delaunay triangulation is the dual graph of the Voronoi diagram, all the information needed to perform natural neighbour interpolation is already implicit within the triangulation itself. Algorithms to determine natural neighbours from the Delaunay triangulation can be found in several papers within the literature[4][5]. Unfortunately the relative complexity of natural neighbour interpolation means that it is slower than barycentric interpolation by a considerable margin.