{ "data": { "question": { "questionId": "935", "questionFrontendId": "899", "categoryTitle": "Algorithms", "boundTopicId": 1903, "title": "Orderly Queue", "titleSlug": "orderly-queue", "content": "

You are given a string s and an integer k. You can choose one of the first k letters of s and append it at the end of the string..

\n\n

Return the lexicographically smallest string you could have after applying the mentioned step any number of moves.

\n\n

 

\n

Example 1:

\n\n
\nInput: s = "cba", k = 1\nOutput: "acb"\nExplanation: \nIn the first move, we move the 1st character 'c' to the end, obtaining the string "bac".\nIn the second move, we move the 1st character 'b' to the end, obtaining the final result "acb".\n
\n\n

Example 2:

\n\n
\nInput: s = "baaca", k = 3\nOutput: "aaabc"\nExplanation: \nIn the first move, we move the 1st character 'b' to the end, obtaining the string "aacab".\nIn the second move, we move the 3rd character 'c' to the end, obtaining the final result "aaabc".\n
\n\n

 

\n

Constraints:

\n\n\n", "translatedTitle": "有序队列", "translatedContent": "

给定一个字符串 s 和一个整数 k 。你可以从 s 的前 k 个字母中选择一个，并把它加到字符串的末尾。

\n\n

返回 在应用上述步骤的任意数量的移动后，字典上最小的字符串 。

\n\n

 

\n\n

示例 1：

\n\n
\n输入：s = \"cba\", k = 1\n输出：\"acb\"\n解释：\n在第一步中，我们将第一个字符（“c”）移动到最后，获得字符串 “bac”。\n在第二步中，我们将第一个字符（“b”）移动到最后，获得最终结果 “acb”。\n
\n\n

示例 2：

\n\n
\n输入：s = \"baaca\", k = 3\n输出：\"aaabc\"\n解释：\n在第一步中，我们将第一个字符（“b”）移动到最后，获得字符串 “aacab”。\n在第二步中，我们将第三个字符（“c”）移动到最后，获得最终结果 “aaabc”。\n
\n\n

 

\n\n

提示：

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