class Solution {
public:
    int moreThanHalfNum_Solution(vector<int>& nums) {
        stack<int> arr;
        for(int i=0; i<nums.size(); i++)
        {
            if(!arr.size()) arr.push(nums[i]);
            else if(arr.top()!=nums[i]) arr.pop();
            else arr.push(nums[i]);
        }
        return arr.top();
    }
};