【LeetCode 面试经典150题】26. Remove Duplicates from Sorted Array 在有序数组中移除重复元素

文章介绍了如何在给定的非递减整数数组中,就地删除重复元素,保持相对顺序,返回唯一元素数量。通过双指针方法,使用快慢指针遍历数组并更新新数组。

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26. Remove Duplicates from Sorted Array

题目大意

Given an integer array nums sorted in non-decreasing order, remove the duplicates in-place such that each unique element appears only once. The relative order of the elements should be kept the same. Then return the number of unique elements in nums.

Consider the number of unique elements of nums to be k. To get accepted, you need to do the following things:

  • Change the array nums such that the first k elements of nums contain the unique elements in the order they were present in nums initially. The remaining elements of nums are not important as well as the size of nums.
  • Return k.

中文释义

给定一个按非递减顺序排序的整数数组 nums,就地删除重复项,使每

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