// 逻辑：只要左侧元素最小值，说明该元素需纳入无序区间，左边界左移
// Clean up compressor resources on error/cancellation
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，妈咪，有人出，有人进，惟一不变的是，这里贩卖快乐，也诉衷肠。
The FTSE 250 company Drax Group said its Canadian wood pellet plants, which once supplied millions of tonnes of biomass to be burnt in its North Yorkshire power plant, had cost the company almost £200m in financial impairments last year.