// 2. 计算前缀和：count[i]表示<=i的元素个数
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Steven Vaughan-Nichols, Senior Contributing EditorSenior Contributing Editor
For years now, Valve fans have been making jokes about the company's slow transition from game maker to glorified digital hat and knife paint marketplace. This week, though, a lawsuit brought by the state of New York argues that Valve's in-game loot box sales amount to an illegal gambling outfit worth tens of billions of dollars.