union object_info *to_be_deleted[num_classes] = {0};
Reporting from, 台北
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思路：找「右侧第一个 ≤ cur」的元素 → 弹出所有 cur 的元素，栈顶即为折扣。最终价格 = cur - 折扣（有则）或 cur（无则）。
They will be in glass bottles, but for the foreseeable future at least, they won't be returnable. "We are slowly picking up distributors and growing the brand," says Hartwig.