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题目描述

给定只含 "I"(增大)或 "D"(减小)的字符串 S ,令 N = S.length

返回 [0, 1, ..., N] 的任意排列 A 使得对于所有 i = 0, ..., N-1,都有:

  • 如果 S[i] == "I",那么 A[i] < A[i+1]
  • 如果 S[i] == "D",那么 A[i] > A[i+1]

 

示例 1:

输入:"IDID"
输出:[0,4,1,3,2]

示例 2:

输入:"III"
输出:[0,1,2,3]

示例 3:

输入:"DDI"
输出:[3,2,0,1]

 

提示:

  • 1 <= S.length <= 10000
  • S 只包含字符 "I" 或 "D"

解法

Python3

Java

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