Leetcode（884）-索引處的解碼字符串
給定一個編碼字符串 S。為了找出解碼字符串並將其寫入磁帶，從編碼字符串中每次讀取一個字符，並采取以下步驟： 如果所讀的字符是字母，則將該字母寫在磁帶上。 如果所讀的字符是數字（例如 d），則整個當前磁帶總共會被重復寫 d-1 次。 現在，對於給定的編碼字符串 S 和索引 K，查找 ...
原文：[LeetCode] 880. Decoded String at Index 在位置坐標處解碼字符串
An encoded string S is given. To find and write the decoded string to a tape, the encoded string is readone character at a timeand the following steps are taken: If the character read is a letter, th ...
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