Given a string word, compress it using the following algorithm:
comp. While word is not empty, use the following operation:\n\n\tword made of a single character c repeating at most 9 times.c to comp.Return the string comp.
\n
Example 1:
\n\nInput: word = "abcde"
\n\nOutput: "1a1b1c1d1e"
\n\nExplanation:
\n\nInitially, comp = "". Apply the operation 5 times, choosing "a", "b", "c", "d", and "e" as the prefix in each operation.
For each prefix, append "1" followed by the character to comp.
Example 2:
\n\nInput: word = "aaaaaaaaaaaaaabb"
\n\nOutput: "9a5a2b"
\n\nExplanation:
\n\nInitially, comp = "". Apply the operation 3 times, choosing "aaaaaaaaa", "aaaaa", and "bb" as the prefix in each operation.
"aaaaaaaaa", append "9" followed by "a" to comp."aaaaa", append "5" followed by "a" to comp."bb", append "2" followed by "b" to comp.\n
Constraints:
\n\n1 <= word.length <= 2 * 105word consists only of lowercase English letters.给你一个字符串 word，请你使用以下算法进行压缩：
comp 开始。当 word 不为空 时，执行以下操作：\n\n\tword 的最长单字符前缀，该前缀由单一字符 c 重复多次组成，且该前缀长度 最多 为 9 。c 追加到 comp 。返回字符串 comp 。
\n\n
\n\n
示例 1：
\n\n输入：word = \"abcde\"
\n\n输出：\"1a1b1c1d1e\"
\n\n解释：
\n\n初始时，comp = \"\" 。进行 5 次操作，每次操作分别选择 \"a\"、\"b\"、\"c\"、\"d\" 和 \"e\" 作为前缀。
对每个前缀，将 \"1\" 和对应的字符追加到 comp。
示例 2：
\n\n输入：word = \"aaaaaaaaaaaaaabb\"
\n\n输出：\"9a5a2b\"
\n\n解释：
\n\n初始时，comp = \"\"。进行 3 次操作，每次操作分别选择 \"aaaaaaaaa\"、\"aaaaa\" 和 \"bb\" 作为前缀。
\"aaaaaaaaa\"，将 \"9\" 和 \"a\" 追加到 comp。\"aaaaa\"，将 \"5\" 和 \"a\" 追加到 comp。\"bb\"，将 \"2\" 和 \"b\" 追加到 comp。\n\n
提示：
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"style": "LEETCODE",
"exampleTestcases": "\"abcde\"\n\"aaaaaaaaaaaaaabb\"",
"__typename": "QuestionNode"
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