[Link] https://leetcode.com/problems/remove-duplicates-from-sorted-array/
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class Solution {
public int removeDuplicates(int[] nums) {
int newIdx = 0, curIdx = 1;
while(curIdx < nums.length) {
if(nums[curIdx] != nums[newIdx]) nums[++newIdx] = nums[curIdx];
curIdx++;
}
return newIdx + 1;
}
}