- 父节点i的左子: 2*i+1, 右子: 2*i+2
// Finally, we release the lock on the stream
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Major building developments in the UK need land to be assessed by archaeologists as part of the planning process, to protect heritage sites.
But he added: "New cars may be a challenge as well" as there were concerns UK car manufacturers were reluctant to export electric cars for sale to the Channel Islands.