It’s not a college essay, so the rules around grammar, punctuation or even emoji don’t need to be too strict.
// 计算天数：栈非空→栈顶索引-当前索引；栈空→0（易错点3：索引差别写反）
，这一点在旺商聊官方下载中也有详细论述
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So if there's a device that can help fix this mess, I'm open to it. And after some time with the Dreamie, I think I've found a promising contender.