Wrong Output issue leetcode (HELP)//added more tags

[varuogm]

question link
This works

public:
    vector<int> smallerNumbersThanCurrent(vector<int>& nums) {
        //this works 
      vector <int > v;
        int cnt=0;
        for(int i=0;i<nums.size();i++)
        {
             for(int j=0;j<nums.size();j++)
        {
            if(nums[i]>nums[j])
                cnt++;   
        }
         v.push_back(cnt);
            cnt=0;
        }
      return v;         
    }
};

BUT NOT THIS despite having same method on test case

Your input
[8,1,2,2,3]
Output
[4,0,1,2,3]
Expected
[4,0,1,1,3]

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