remove-duplicates-from-sorted-array.cpp

// https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array/solution/

#include <iostream>
#include <vector>
using namespace std;

class Solution
{
public:
    int removeDuplicates(vector<int>& nums)
    {
        if(nums.size() == 0) return 0;
        int i=0;
        for (int j = 1; j < nums.size(); j++)
        {
            if (nums[j] != nums[i])
            {
                i++;
                nums[i] = nums[j];
            }
        }
        return i+1;
    }
    
};

int main(int argc, char const *argv[])
{
    Solution s;
    vector<int> nums;
    nums.push_back(1);
    nums.push_back(1);
    nums.push_back(2);
    nums.push_back(2);
    nums.push_back(3);
    printf("%d\n",s.removeDuplicates(nums));
    return 0;
}