1295. Find Numbers with Even Number of Digits

class Solution {
public:
    int findNumbers(vector<int>& nums) 
    {
        int ans = 0;
        for(int i=0; i<nums.size(); i++)
        {
            int n = nums[i], cnt = 0;
            while(n)
            {
                cnt++;
                n /= 10;
            }
            if(cnt%2==0)    ans++;
        }
        return ans;
    }
};