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1054. Distant Barcodes.go
1054. Distant Barcodes_test.go

1054. Distant Barcodes


In a warehouse, there is a row of barcodes, where the i-th barcode is barcodes[i].

Rearrange the barcodes so that no two adjacent barcodes are equal. You may return any answer, and it is guaranteed an answer exists.

Example 1:

Input: [1,1,1,2,2,2]
Output: [2,1,2,1,2,1]

Example 2:

Input: [1,1,1,1,2,2,3,3]
Output: [1,3,1,3,2,1,2,1]


  1. 1 <= barcodes.length <= 10000
  2. 1 <= barcodes[i] <= 10000


在一个仓库里,有一排条形码,其中第 i 个条形码为 barcodes[i]。请你重新排列这些条形码,使其中两个相邻的条形码 不能 相等。 你可以返回任何满足该要求的答案,此题保证存在答案。


  • 这一题和第 767 题原理是完全一样的。第 767 题是 Google 的面试题。
  • 解题思路比较简单,先按照每个数字的频次从高到低进行排序,注意会有频次相同的数字。排序以后,分别从第 0 号位和中间的位置开始往后取数,取完以后即为最终解。
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