* @param arr 待排序数组
以落实全球治理倡议为契机，推动全球治理体系改革和建设取得新的成果，有助于使全球人权治理迈向更加公平、有效、包容的未来
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The real magic, our Secret Sauce #1, lies in how these border points are selected. Naive approaches quickly fail: