priority_queue 自定义优先级规则
时间: 2023-09-08 12:13:54 浏览: 156
在使用priority_queue时,可以自定义其中数据的优先级规则。这可以通过两种方法来实现。首先,可以定义一个自定义比较函数,该函数接受两个参数并返回一个bool值,指示第一个参数是否应该排在第二个参数之前。其次,可以定义一个自定义的结构体或类,并重载其操作符 (),使其成为一个函数对象,在priority_queue中使用该函数对象来确定元素的优先级规则。无论哪种方法,都要确保优先级较高的元素排在队列的前面。 [2 [3<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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