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）。
Her appearance, described by one viewer as "camp and iconic", instantly went viral - spawning memes of the star's face screwed up in concentration, before pulling an answer out of thin air with a victorious swish of her hair.，更多细节参见搜狗输入法2026
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국힘서 멀어진 PK…민주 42% 국힘 25%, 지지율 격차 6년만에 최대
Three hot new bombshells have entered the Pokémon villa.，更多细节参见雷电模拟器官方版本下载