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LeetCode Daily 2 Questions 01: Delete Duplicates in Sorted Arrays (both 1200 questions)

2022-08-07 15:37:00 【The man fishing alone like snow.】

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Problem-solving idea: Because the arrays are sorted, as long as they are the same, they must be next to each other. We only need to traverse all the arrays, and then compare them in pairs, and delete the latter if they are the same.
Pairwise comparison of the previous and next bits Comparison of the next and next bits in pairs

class Solution {public int removeDuplicates(int[] nums) {int i=0;for (int j=1;j<nums.length;j++){if (nums[i]!=nums[j]){i+=1;nums[i]=nums[j];//removeKey to Duplicates}}return i+1;}}