2. 排序：将堆顶(最大值)与末尾交换，堆大小-1，重新调整堆
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In Wolverhampton, Wednesfield Library, Central Library and Finchfield Library are holding coffee mornings from 10:30 GMT on Thursday, Friday and Tuesday respectively.
Frailty coordinator Georgia Zapparoli, who normally worked with people in their later years, said the 18 to 39 age bracket was key as "common themes" ran through the lifestyle of many older patients.
sum += candidate.weight