Sorted arrays firstly


  • -4
    T
    class Solution {
    public:
        int findDuplicate(vector<int>& nums) {
            sort(nums.begin(),nums.end());
            for(int i=0;i<nums.size();i++)
            {
                if(nums[i]==nums[i+1])
                {
                    return nums[i];
                }
            }
            return 0;
        }
    };

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