Given two inclusive integer ranges [x1:x2] and [y1:y2], where x1 ≤ x2 and y1 ≤ y2, what is the most efficient way to test whether there is any overlap of the two ranges?Given two inclusive integer ranges [x1:x2] and
阅读背景：
要测试重叠的两个整数范围，最有效的方法是什么?
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