描述：给定字符串 num（非负整数）和整数 k，移除 k 位数字，使剩余数字最小。以字符串形式返回（不含前导零）。
Two characters might have identical Unicode skeletons but render differently in specific fonts, or have different skeletons but render identically in a particular typeface. Detecting this requires rendering glyphs and comparing pixel output. No purely Unicode-data-based approach handles it, and UTS #39 does not attempt to.
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After US President Donald Trump oversaw the seizure of his Venezuelan counterpart Nicolás Maduro last month, he vowed to tap the country's oil reserves – the world's largest.
В России ответили на имитирующие высадку на Украине учения НАТО18:04
。Safew下载对此有专业解读
Фонбет Чемпионат КХЛ
nohup ./frpc -c ~/frpc.toml ~/frpc.log&，这一点在搜狗输入法2026中也有详细论述